Exhibit 3.28c

                        AGREEMENT OF LIMITED PARTNERSHIP

                                       OF

                                 REDI-MIX, L.P.


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                                                                               .

                        AGREEMENT OF LIMITED PARTNERSHIP
                                       OF
                                 REDI-MIX, L.P.

                                TABLE OF CONTENTS



                                                                            Page
                                                                            ----
                                                                         
ARTICLE 1................................................................     1
   1.1   Definitions.....................................................     1
   1.2   References......................................................     7

ARTICLE 2................................................................     7
   2.1   Formation of the Limited Partnership............................     7
   2.2   Partnership Name................................................     7
   2.3   Purpose.........................................................     7
   2.4   Principal and Registered Office.................................     7
   2.5   Term of the Partnership.........................................     7

ARTICLE 3................................................................     7
   3.1   Initial Capital Contribution of General Partner.................     8
   3.2   Initial Capital Contribution of Limited Partners................     8
   3.3   Authorization of Partner Loans..................................     8
   3.4   Additional Capital Contributions................................     8

ARTICLE 4................................................................     8
   4.1   Distribution of Net Cash Flow...................................     8
   4.2   Distribution of Net Proceeds of a Capital Transaction...........     8
   4.3   Return of and Interest on Capital Contributions.................     8
   4.4   Payments........................................................     8
   4.5   In-Kind Distributions...........................................     9
   4.6   Allocations of Net Profit and Net Loss..........................     9



                                        i




                                                                         
   4.7   Partnership Minimum Gain Chargeback.............................    10
   4.8   Minimum Gain Chargeback for Partner Nonrecourse Debt............    10
   4.9   Qualified Income Offset.........................................    10
   4.10  Limit on Loss Allocations.......................................    11
   4.11  Net Loss from Partner Nonrecourse Debt..........................    11
   4.12  Nonrecourse Deductions..........................................    11
   4.13  Code Section 754 Adjustments....................................    11
   4.14  Reversal of Mandatory Allocations...............................    11
   4.15  Compliance with Code............................................    11
   4.16  Tax Allocations -- Code Section 704(c)..........................    11
   4.17  Allocation on Transfer..........................................    12
   4.18  Minimum Interest of General Partner.............................    12

ARTICLE 5................................................................    12
   5.1   Capital Accounts................................................    12
   5.2   Adjustment for In-Kind Distributions............................    12
   5.3   Property Revaluation............................................    13
   5.4   Interpretation..................................................    13
   5.5   Obligation to Repay or Restore..................................    13
   5.6   Tax Elections...................................................    14

ARTICLE 6................................................................    14
   6.1   Operating Expenses and Reimbursements...........................    14

ARTICLE 7................................................................    14
   7.1   Admission of Additional Partners................................    14
   7.2   Assignment or Transfer of Partnership Interests.................    14

ARTICLE 8................................................................    14



                                       ii




                                                                         
   8.1   Powers of General Partner.......................................    14
   8.2   Authority as to Third Persons...................................    17
   8.3   Compensation and Expenses of the General Partner................    17
   8.4   Covenants of the General Partner................................    17
   8.5   Limitations on Authority........................................    18
   8.6   No Withdrawal From Partnership..................................    18
   8.7   Officers........................................................    18

ARTICLE 9................................................................    18
   9.1   Dissolution.....................................................    18
   9.2   Continuation....................................................    18
   9.3   Events Affecting a Limited Partner..............................    19
   9.4   Liquidation Procedures..........................................    19
   9.5   Termination.....................................................    20
   9.6   No Petition for Dissolution.....................................    20
   9.7   Compliance with Timing Requirements of Treasury Regulations.....    20

ARTICLE 10...............................................................    20
   10.1  Financial and Tax Accounting and Reports........................    20
   10.2  Valuation.......................................................    20
   10.3  Supervision; Inspection of Books................................    20
   10.4  Consent in Lieu of Meeting......................................    21
   10.5  Withholding.....................................................    21

ARTICLE 11...............................................................    21
   11.1  Execution and Filing of Documents...............................    21
   11.2  Other Instruments and Acts......................................    21
   11.3  Binding Agreement...............................................    21



                                       iii




                                                                         
   11.4  Governing Law...................................................    21
   11.5  Notices.........................................................    21
   11.6  Power of Attorney...............................................    22
   11.7  Amendment.......................................................    22
   11.8  Entire Agreement................................................    23
   11.9  Titles; Subtitles...............................................    23
   11.10 Exculpation.....................................................    23
   11.11 Indemnification of the General Partner..........................    23
   11.12 Limitation of Liability of the Limited Partners.................    23
   11.13 Ambiguities.....................................................    23
   11.14 No Right to Partition...........................................    24



                                       iv



                        AGREEMENT OF LIMITED PARTNERSHIP
                                       OF
                                 REDI-MIX, L.P.

     THIS AGREEMENT OF LIMITED PARTNERSHIP, made and entered into as of this
_____ day of April, 1999, by and between Redi-Mix Management, Inc., a Texas
corporation (the "General Partner") and Atlas Investments Inc., a Nevada
corporation (the "Limited Partner").

     NOW, THEREFORE, the General Partner and the Limited Partner hereby agree to
the terms and conditions of this Agreement of Limited Partnership as follows:

                                   ARTICLE 1.

                             DEFINITIONS; REFERENCES

1.1  Definitions. Unless the context requires otherwise, the following terms
     shall have the meanings specified in this Section 1.1:

     1.1.1 Act: The Texas Revised Limited Partnership Act.

     1.1.2 Additional Capital Contributions: The additional capital
          contributions described in Section 3.4.

     1.1.3 Adjusted Capital Account Deficit: With respect to any Partner, the
          deficit balance, if any, in such Partner's Capital Account as of the
          end of the relevant taxable year, after giving effect to the following
          adjustments:

          (a)  Credit to such Capital Account any amounts which such Partner (1)
               is obligated to restore to the Partnership upon liquidation of
               its interest in the Partnership (or which is so treated pursuant
               to Regulations Section 1.704-1(b)(2)(ii)(c)) pursuant to the
               terms of this Agreement or under state law or (2) is deemed to be
               obligated to restore pursuant to the penultimate sentences of
               Regulations Sections 1.704-2(g)(1) and 1.704-2(i)(5) and (3) the
               Partner's share (as determined under Code Section 752) of any
               recourse indebtedness of the Partnership to the extent that such
               indebtedness could not be repaid out of the Partnership's assets
               if all of the Partnership's assets were sold at their respective
               Book Values as of the end of the Fiscal Year or other period and
               the proceeds from the sales were used to pay the Partnership's
               liabilities; and

          (b)  Debit to such Capital Account the items described in Sections
               1.704-1(b)(2)(ii)(d)(4), 1.704-1(b)(2)(ii)(d)(5), and
               1.704-1(b)(2)(ii)(d)(6) of the Regulations.

          The foregoing definition of Adjusted Capital Account Deficit is
          intended to comply with the provisions of Section 1.704-1(b)(2)(ii)(d)
          of the Regulations and shall be interpreted consistently therewith.
          For purposes of clause (a)(3) above, the amounts computed pursuant to
          clause (a)(1) above for each Partner shall be


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          considered to be proceeds from the sale of the assets of the
          Partnership to the extent such amounts would be available to satisfy
          (directly or indirectly) the indebtedness specified in clause (a)(3).

     1.1.4 Affiliate: With respect to any Person, a Person that directly or
          indirectly, through one or more intermediaries, controls, is
          controlled by, or is under common control with the Person in question.
          As used herein, the term "control" means the possession, directly or
          indirectly, of the power to direct or cause the direction of the
          management and policies of a Person, whether through ownership of
          voting securities or interests, by contract, or otherwise.

     1.1.5 Agreement: This Agreement of Limited Partnership of Redi-Mix, L.P.
          and any amendments hereto.

     1.1.6 Bankruptcy: A Person shall be deemed bankrupt if:

          (a)  any proceeding is commenced against such Person as "debtor" for
               any relief under bankruptcy or insolvency laws, or laws relating
               to the relief of debtors, reorganizations, arrangements,
               compositions, or extensions and such proceeding is not dismissed
               within sixty (60) days after such proceeding has commenced, or

          (b)  such Person commences any proceeding for relief under bankruptcy
               or insolvency laws or laws relating to the relief of debtors,
               reorganizations, arrangements, compositions, or extensions.

     1.1.7 Book Value: With respect to any asset, the asset's adjusted basis for
          federal income tax purposes, except as follows:

          (a)  the initial Book Value of any asset contributed (or deemed
               contributed under Regulations Section 1.708-1(b)(1)(iv)) by a
               Partner to the Partnership shall be the asset's gross fair market
               value at the time of the contribution;

          (b)  the Book Value of all Partnership assets shall be adjusted to
               equal their respective gross fair market values, as determined by
               the General Partner in its reasonable judgment:

               (i)  if the General Partner reasonably determines an adjustment
                    is necessary or appropriate to reflect the relative economic
                    interests of the Partners in the Partnership as of (1) the
                    acquisition of an additional interest in the Partnership by
                    any new or existing Partner in exchange for more than a de
                    minimis capital contribution, or (2) the distribution by the
                    Partnership to a Partner of more than a de minimis amount of
                    Partnership property as consideration for an interest in the
                    Partnership; and


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               (ii) as of the liquidation of the Partnership within the meaning
                    of Regulations Section 1.704-1(b)(2)(ii)(g);

          (c)  the Book Value of any Partnership asset distributed to any
               Partner will be the gross fair market value of the asset on the
               date of distribution; and

          (d)  the Book Values of Partnership assets will be increased or
               decreased to reflect any adjustment to the adjusted basis of the
               assets under Code Sections 734(b) or 743(b), but only to the
               extent that the adjustment is taken into account in determining
               Capital Accounts under Regulations Section 1.704-1(b)(2)(iv)(m),
               provided that Book Values will not be adjusted hereunder to the
               extent that the General Partner determines that an adjustment
               under clause (b) is necessary or appropriate in connection with a
               transaction that would otherwise result in an adjustment under
               this clause (d).

          After the Book Value of any asset has been adjusted under clause (a),
          clause (b) or clause (d) above, Book Value will be adjusted by the
          Depreciation taken into account with respect to the asset for purposes
          of computing Net Profit and Net Loss.

     1.1.8 Capital Account: The capital account of a Partner established and
          maintained in accordance with Section 5.1.

     1.1.9 Capital Contributions: With respect to any Partner, the amount of
          money actually contributed (or deemed contributed pursuant to
          Regulations Section 1.704-1(b)(2)(iv)(c)) to the Partnership and the
          initial Book Value of any property (other than money) contributed to
          the Partnership with respect to the interest in the Partnership held
          by that Partner (net of any liabilities secured by such property that
          the Partnership is considered to assume or to take subject to Code
          Section 752). Any reference in this Agreement to the Capital
          Contribution of a Partner will include a Capital Contribution made by
          any prior Partner with respect to the Partnership interest of the
          Partner.

     1.1.10 Capital Transaction: The sale, exchange or other disposition of all
          or any portion of the property of the Partnership other than in the
          ordinary course of business of the Partnership. Capital Transactions
          include the financing or refinancing of Partnership property which
          creates excess funds not needed for Operations and which funds, in the
          opinion of the General Partner, are available for distribution to the
          Partners.

     1.1.11 Code: The United States Internal Revenue Code of 1986, as now
          existing or hereafter amended. References to sections of the Code
          include successor provisions to those sections.

     1.1.12 Depreciation: For each taxable year or other period, an amount equal
          to the depreciation, amortization or other cost recovery deduction
          allowable with respect to an asset for the year or other period,
          except that if the Book Value of an asset


                                        3



          differs from its adjusted basis for federal income tax purposes at the
          beginning of the year or other period, Depreciation will be an amount
          which bears the same ratio to the beginning Book Value as the federal
          income tax depreciation, amortization or other cost recovery deduction
          for the year or other period bears to the beginning adjusted tax
          basis, provided that if the federal income tax depreciation,
          amortization, or other cost recovery deduction for the year or other
          period is zero, Depreciation will be determined with reference to the
          beginning Book Value using any reasonable method selected by the
          General Partner.

     1.1.13 Fiscal Year: The period commencing on January 1 of each year and
          ending on December 31 of such year.

     1.1.14 General Partner: Redi-Mix Management, Inc., a Texas corporation.

     1.1.15 Gross Income: For each Fiscal Year or other period, an amount equal
          to the Partnership's gross income as determined for federal income tax
          purposes for such Fiscal Year or period but computed with the
          adjustments specified in Section 1.1.20(a) and (c).

     1.1.16 Initial Capital Contributions: The Capital Contributions of the
          General Partner made pursuant to Section 3.1 and the Limited Partners
          made pursuant to Sections 3.2 and 3.3.

     1.1.17 Limited Partner: Atlas Investments Inc., a Nevada corporation, and
          each Person who is admitted to the Partnership as a Limited Partner
          and shown as a Limited Partner on the books and records of the
          Partnership.

     1.1.18 Net Cash Flow: All cash funds from operations of the Partnership on
          hand or on deposit from time to time after (i) payment of all
          operating expenses payable as of the date in question, (ii) provision
          for payment of all outstanding and unpaid Partnership obligations due
          and payable as of the date in question or within sixty (60) days
          thereafter, and (iii) the establishment of such reasonable reserves as
          the General Partner, in its sole discretion, deems appropriate for the
          operating needs of the Partnership. "Net Cash Flow" shall not include
          or reflect any proceeds received or expenses incurred in connection
          with a Capital Transaction.

     1.1.19 Net Proceeds of a Capital Transaction: The net proceeds received by
          the Partnership in connection with a Capital Transaction after payment
          of all costs and expenses incurred by the Partnership in connection
          with such Capital Transaction, including, without limitation, brokers'
          commissions, loan fees, other closing costs, the cost of any
          alteration, improvement, restoration or repair of Partnership assets
          necessitated by or incurred in connection with such Capital
          Transaction, any reserves that the General Partner believes in good
          faith should be established and the payment of any loans owed by the
          Partnership to any of the Partners, plus any other loans that should
          be appropriately paid, as determined by the General Partner in its
          reasonable discretion.


                                        4



     1.1.20 Net Profit and Net Loss: For each Fiscal Year or other period, an
          amount equal to the Partnership's taxable income or loss for such
          Fiscal Year or period, determined in accordance with Code Section
          703(a) (for this purpose, all items of income, gain, loss or deduction
          required to be stated separately pursuant to Code Section 703(a)(1)
          shall be included in taxable income or loss) with the following
          adjustments:

          (a)  any income of the Partnership that is exempt from federal income
               tax and not otherwise taken into account in computing Net Profit
               or Net Loss shall be added to such taxable income or loss;

          (b)  any expenditures of the Partnership described in Code Section
               705(a)(2)(B) or treated as Code Section 705(a)(2)(B) expenditures
               under Regulations Section 1.704-1(b)(2)(iv)(i) and not otherwise
               taken into account in computing Net Profit or Net Loss shall be
               subtracted from such taxable income or loss;

          (c)  gain or loss resulting from any disposition of Partnership
               property with respect to which gain or loss is recognized for
               federal income tax purposes shall be computed by reference to the
               Book Value of such property notwithstanding that the Book Value
               of such asset differs from its adjusted tax basis;

          (d)  gain or loss resulting from any adjustment pursuant to Section
               1.1.7(b) shall be taken into account as gain or loss from
               disposition of the asset for purposes of computing Net Profit or
               Net Loss hereunder;

          (e)  gain or loss resulting from any adjustment attributable to an
               in-kind distribution of assets to any Partner pursuant to
               Sections 5.2 shall be taken into account as gain or loss from
               disposition of the asset for purposes of computing Net Profit or
               Net Loss hereunder;

          (f)  in lieu of the depreciation, amortization and other cost recovery
               deductions taken into account in computing taxable income or
               loss, there shall be taken into account Depreciation for such
               Fiscal Year or other period as determined under Regulations
               Section 1.704-1(b)(2)(iv)(g)(3);

          (g)  the amount of any Gross Income specially allocated to the
               Partners pursuant to Sections 4.7 through 4.9 and 4.14 shall not
               be included as income or revenue; and

          (h)  any amount allocated pursuant to Sections 4.11 through 4.14 shall
               not be included as a gain, loss or deduction.

     1.1.21 Net Profit and Net Loss from Capital Transactions: Net Profit and
          Net Loss including only those items of income, gain, loss and
          deduction relating to Capital Transactions.


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     1.1.22 Net Profit and Net Loss from Operations: Net Profit and Net Loss
          excluding those items of income, gain, loss and deduction related
          solely to Capital Transactions.

     1.1.23 Nonrecourse Deductions: Losses, deductions or Code Section
          705(a)(2)(B) expenditures attributable to Nonrecourse Liabilities of
          the Partnership. The amount of Nonrecourse Deductions for any Fiscal
          Year or other period shall be determined in accordance with the
          provisions of Regulations Section 1.704-2(c).

     1.1.24 Nonrecourse Liability: A nonrecourse liability as defined in
          Regulations Section 1.752-1(a)(2).

     1.1.25 Operations: All operations and activities of the Partnership other
          than those related to or consisting of a Capital Transaction.

     1.1.26 Partner: A Partner of the Partnership, including the General Partner
          and the Limited Partner.

     1.1.27 Partner Nonrecourse Debt: Any Nonrecourse Liability of the
          Partnership for which any Partner or related person bears the economic
          risk of loss under Regulations Section 1.752-2.

     1.1.28 Partner Nonrecourse Debt Minimum Gain: The minimum gain attributable
          to Partner Nonrecourse Debt as determined under Regulations Section
          1.704-2(i)(3).

     1.1.29 Partner Nonrecourse Deductions: Partnership losses, deductions or
          Code Section 705(a)(2)(B) expenditures attributable to a particular
          Partner Nonrecourse Debt. The amount of Partner Nonrecourse Deductions
          for any Fiscal Year or other period shall be determined in accordance
          with the provisions of Regulations Section 1.704-2(i)(2).

     1.1.30 Partnership: Redi-Mix, L.P., a Texas limited partnership.

     1.1.31 Partnership Certificate: The certificate of limited partnership of
          the Partnership filed in conformance with the Act.

     1.1.32 Partnership Minimum Gain: The amount computed under Regulations
          Section 1.704-2(d)(l) with respect to the Partnership's Nonrecourse
          Liabilities.

     1.1.33 Partnership Percentage or Percentages: The percentages of the
          Partners as follows:


                              
               General Partner     .1%
               Limited Partner   99.9%


     1.1.34 Partnership Term: The period of duration of the Partnership, as set
          forth in Section 2.5.

     1.1.35 Person: Any individual, partnership, corporation, trust or other
          legal entity.


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     1.1.36 Regulations: The Income Tax Regulations promulgated under the Code,
          as such regulations may be amended from time to time (including
          corresponding provisions of succeeding regulations).

     1.1.37 Tax Matters Partner: The General Partner.

     1.1.38 Transfer: Any sale, assignment, transfer, lease or other disposal of
          property, including without limitation, an interest in the
          Partnership.

1.2  References. Unless otherwise specified herein, references in this Agreement
     to "Section," "Subsection," "Article," or "Exhibit" refer to the sections,
     subsections, articles, or exhibits in this Agreement.

                                   ARTICLE 2.

                  FORMATION, NAME, PURPOSE, REGISTERED OFFICE,
                            REGISTERED AGENT AND TERM

2.1  Formation of the Limited Partnership. The General Partner and the Limited
     Partner hereby form the Partnership as a limited partnership pursuant to
     and in accordance with the provisions of the Act.

2.2  Partnership Name. The business of the Partnership will be conducted under
     the name Redi-Mix, L.P. or such other name or names as the General Partner
     may determine.

2.3  Purpose. The purpose of the Partnership is to (i) manufacture and
     distribute concrete and related products, (ii) own, manage, operate,
     mortgage, sell and otherwise deal with the assets of the Partnership; and,
     (iii) engage in such other activities as the General Partner shall deem
     appropriate, to the extent such activities may be carried on under
     applicable law and are not prohibited by the terns and provisions of this
     Agreement.

2.4  Principal and Registered Office. The principal office of the Partnership is
     at 1445 MacArthur, Ste. 136, Carrollton, Texas 75007. The General Partner
     has a business office at the Partnership's principal office. The registered
     office of the Partnership is at 1445 MacArthur Drive, Suite 136,
     Carrollton, Texas 75007, and John C. Miller is the registered agent of the
     Partnership. The General Partner may change the principal or registered
     office or registered agent of the Partnership from time to time. The
     General Partner may establish, maintain and abandon one or more additional
     places of business for the Partnership.

2.5  Term of the Partnership. The term of the Partnership shall commence upon
     the filing and recording of the Partnership Certificate, and shall continue
     until December 31, 2050, unless earlier terminated pursuant to the terms of
     this Agreement.

                                   ARTICLE 3.

                      CAPITAL CONTRIBUTIONS; PARTNER LOANS


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3.1  Initial Capital Contribution of General Partner. The General Partner has
     contributed $1.00 to the Partnership. The General Partner shall not
     otherwise be required to make additional contributions to the Partnership
     except as provided in Sections 3.4 and 5.5.

3.2  Initial Capital Contribution of Limited Partners. The Limited Partner has
     contributed $999.00 to the Partnership hereto. The Limited Partner shall
     not be required to make additional contributions to the Partnership except
     as specified in Sections 3.4 and 5.5.

3.3  Authorization of Partner Loans. Subject to the limitations herein and to
     other agreements of the Partnership, the General Partner from time to time
     may cause the Partnership to borrow required amounts from one or more
     Partners or their Affiliates. Loans made by Partners or Affiliates under
     this Section 3.3 will not be considered a contribution to the capital of
     the Partnership, but will constitute indebtedness of the Partnership to the
     advancing Partner or Affiliate, payable from the first available net cash
     flow of the Partnership unless otherwise agreed by the lending Partner or
     Affiliate and, to the extent still unpaid, upon the termination and
     liquidation of the Partnership. Each loan by a Partner or Affiliate will
     bear simple interest compounded annually on the unpaid principal balance at
     the interest rate approved by the General Partner. The Partners will not be
     personally liable for loans made by Partners or Affiliates under this
     Section 3.3 or be obligated to make contributions to the capital of the
     Partnership to repay those loans. Loans made by Partners or Affiliates
     under this Section 3.3 will be payable only from the assets of the
     Partnership.

3.4  Additional Capital Contributions. The Partners may make Additional Capital
     Contributions to the Partnership from time to time as may be required to
     meet the demands of the business of the Partnership. The Partners shall
     contribute such Additional Capital Contributions in cash in proportion to
     the Partners' Partnership Percentages.

                                   ARTICLE 4.

                          DISTRIBUTIONS AND ALLOCATIONS

4.1  Distribution of Net Cash Flow. Net Cash Flow shall be distributed among the
     Partners in accordance with their Partnership Percentages at such times and
     in such amounts as shall be determined by the General Partner.

4.2  Distribution of Net Proceeds of a Capital Transaction. Net Proceeds of a
     Capital Transaction shall be distributed among the Partners in accordance
     with their Partnership Percentages at such times and in such total amounts
     as shall be determined by the General Partner.

4.3  Return of and Interest on Capital Contributions. No Partner is entitled to
     the return of his Capital Contributions or his Capital Account or to be
     paid interest in respect of either his Capital Account or any Capital
     Contribution made by him to the Partnership except as provided in this
     Agreement.

4.4  Payments. The amount of any distribution or payment to a Partner whether
     pursuant to Article 4 or Article 9 hereof may be made in cash or in-kind or
     partially in cash and


                                        8



     partially in-kind in the reasonable discretion of the General Partner or
     the liquidating trustees, as the case may be, less reasonable reserves
     established in the reasonable discretion of the General Partner or the
     liquidating trustees, as the case may be, for known or unknown liabilities
     of the Partnership.

4.5  In-Kind Distributions. All distributions of assets in-kind shall be made at
     Book Value as determined pursuant to Section 5.3 and shall be distributed
     to the Partners in the same manner as a distribution of Net Proceeds of a
     Capital Transaction would have been made if such assets had been sold. The
     Net Profit or Net Loss resulting from distribution will be allocated in
     accordance with Section 4.6.3 or Section 4.6.4, as the case may be.

4.6  Allocations of Net Profit and Net Loss.

     4.6.1 Net Profit From Operations.

          (a)  If any Net Loss has been allocated to the Partners pursuant to
               Section 4.6.2 or Section 4.6.4, then Net Profit from Operations
               shall first be allocated to the Partners, in the same proportions
               as such Net Loss was allocated, until each Partner's Capital
               Account balance equals what it would have been had there been no
               such allocation of Net Loss.

          (b)  After any allocation required pursuant to Section 4.6.1(a), Net
               Profit from Operations shall be allocated among the Partners in
               accordance with their Partnership Percentages.

     4.6.2 Net Loss From Operations.

          (a)  If any Net Profit has been allocated to the Partners pursuant to
               Section 4.6.1 or Section 4.6.3, then Net Loss from Operations
               shall first be allocated to the Partners, in the same proportions
               as such Net Profit was allocated, until each Partner's Capital
               Account balance equals what it would have been had there been no
               such allocation of Net Profit.

          (b)  After any allocation required pursuant to Section 4.6.2(a) Net
               Loss from Operations shall be allocated among the Partners in
               proportion to their Capital Accounts until such Capital Account
               balances equal zero.

          (c)  After any allocation required pursuant to Section 4.6.2(b), Net
               Loss from Operations shall be allocated to the General Partner.

     4.6.3 Net Profit From Capital Transactions.

          (a)  If any Net Loss has been allocated to the Partners pursuant to
               Section 4.6.2 or Section 4.6.4, then Net Profit from Capital
               Transactions shall first be allocated to the Partners, in the
               same proportions as such Net Loss was allocated, until each
               Partner's Capital Account balance equals what it would have been
               had there been no such allocation of Net Loss.


                                        9



          (b)  After any allocation required pursuant to Section 4.6.3(a), Net
               Profit from Capital Transactions shall be allocated among the
               Partners in accordance with their Partnership Percentages.

     4.6.4 Net Loss From Capital Transactions.

          (a)  If any Net Profit has been allocated to the Partners pursuant to
               Section 4.6.1 or Section 4.6.3, then Net Loss from Capital
               Transactions shall first be allocated to the Partners, in the
               same proportions as such Net Profit was allocated, until each
               Partner's Capital Account balance equals what it would have been
               had there been no such allocation of Net Profit.

          (b)  After any allocation required pursuant to Section 4.6.4(a) Net
               Loss from Capital Transactions shall be allocated among the
               Partners in proportion to their Capital Accounts until such
               Capital Account balances equal zero.

          (c)  After any allocation required pursuant to Section 4.6.4(b), Net
               Loss from Capital Transactions shall be allocated to the General
               Partner.

4.7  Partnership Minimum Gain Chargeback. Notwithstanding any other provision of
     this Agreement to the contrary, if in any Fiscal Year or other period there
     is a net decrease in the amount of the Partnership Minimum Gain, then each
     Partner shall first be allocated items of Gross Income for such year (and,
     if necessary, subsequent years) in an amount equal to such Partner's share
     of the net decrease in such Minimum Gain during such year (as determined
     under Regulations Section 1.704-2(g)(2)); provided, however, if there is
     insufficient Gross Income in a year to make the allocation specified above
     for all Partners for such year, the Gross Income shall be allocated among
     the Partners in proportion to the respective amounts they would have been
     allocated had there been an unlimited amount of Gross Income for such year.

4.8  Minimum Gain Chargeback for Partner Nonrecourse Debt. Notwithstanding any
     other provision of this Agreement to the contrary other than Section 4.7,
     if in any year there is a net decrease in the amount of the Partner
     Nonrecourse Debt Minimum Gain, then each Partner shall first be allocated
     items of Gross Income for such year (and, if necessary, subsequent years)
     in an amount equal to such Partner's share of the net decrease in such
     Minimum Gain during such year (as determined under Regulations Section
     1.704-2(i)(4)); provided, however, if there is insufficient Gross Income in
     a year to make the allocation specified above for all Partners for such
     year, the Gross Income shall be allocated among the Partners in proportion
     to the respective amounts they would have been allocated had there been an
     unlimited amount of Gross Income for such year.

4.9  Qualified Income Offset. Notwithstanding any other provision of this
     Agreement to the contrary (except Sections 4.7 and 4.8 which shall be
     applied first), if in any Fiscal Year or other period a Partner
     unexpectedly receives an adjustment, allocation or distribution described
     in Regulations Section 1.704-1(b)(2)(ii)(d)(4), (5) or (6), such Partner
     will be specially allocated items of Gross Income in an amount and manner
     sufficient to


                                       10



     eliminate, to the extent required by the Regulations, the Adjusted Capital
     Account Deficit of such Partner as quickly as possible.

4.10 Limit on Loss Allocations. Notwithstanding the provisions of Section 4.6.2,
     4.6.4 or any other provision of this Agreement to the contrary, Net Loss
     (or items thereof) shall not be allocated to a Partner if such allocation
     would cause or increase such Partner's Adjusted Capital Account Deficit and
     shall be reallocated to the other Partners, subject to the limitations of
     this Section 4.10.

4.11 Net Loss from Partner Nonrecourse Debt. Any Net Loss or deductions
     attributable to Partner Nonrecourse Debt shall be allocated to the Partner
     who bears the economic risk of loss with respect to such debt.

4.12 Nonrecourse Deductions. Nonrecourse Deductions for any Fiscal Year or other
     period shall be allocated among the Partners in accordance with their
     Partnership Percentages.

4.13 Code Section 754 Adjustments. To the extent an adjustment to the adjusted
     tax basis of any Partnership asset under Code Sections 734(b) or 743(b) is
     required to be taken into account in determining Capital Accounts under
     Regulations Section 1.704-1(b)(2)(iv)(m), the amount of the adjustment to
     the Capital Accounts will be treated as an item of gain (if the adjustment
     increases the basis of the asset) or loss (if the adjustment decreases the
     basis), and the gain or loss will be specially allocated to the Partners in
     a manner consistent with the manner in which their Capital Accounts are
     required to be adjusted under Regulations Section 1.704-1(b)(2)(iv)(m).

4.14 Reversal of Mandatory Allocations. In the event that any Gross Income or
     Net Loss is allocated pursuant to Section 4.7 through 4.10, subsequent
     Gross Income, Net Profit or Net Loss (or items thereof) will first be
     allocated (subject to Sections 4.7 through 4.10) to the Partners in a
     manner which will result in each Partner having a Capital Account balance
     equal to that which would have resulted had the original allocation of
     Gross Income or Net Loss (or items thereof) pursuant to Sections 4.7
     through 4.10 not occurred.

4.15 Compliance with Code. The foregoing provisions of this Agreement relating
     to the allocation of Net Profit and Net Loss are intended to comply with
     Regulations under Section 704(b) of the Code and shall be interpreted and
     applied in a manner consistent with such Regulations.

4.16 Tax Allocations -- Code Section 704(c). In accordance with Code Section
     704(c) and the related Regulations, income, gain, loss and deduction with
     respect to any property contributed to the capital of the Partnership,
     solely for tax purposes, will be allocated among the Partners so as to take
     account of any variation between the adjusted basis to the Partnership of
     the property for federal income tax purposes and the initial Book Value of
     the property. If the Book Value of any Partnership asset is adjusted under
     Section 1.1.7, subsequent allocations of income, gain, loss and deduction
     with respect to that asset will take account of any variation between the
     adjusted basis of the asset for federal income tax purposes and its Book
     Value in the same manner as under Code Section 704(c) and the related
     Regulations. Any elections or other decisions relating to


                                       11



     allocations under this Section 4.16 will be made in any manner that the
     General Partner determines reasonably reflects the purpose and intention of
     this Agreement. Allocations under this Section 4.16 are solely for purposes
     of federal, state and local taxes and will not affect, or in any way be
     taken into account in computing, any Partner's Capital Account or share of
     Net Profit, Net Loss or other items or distributions under any provision of
     this Agreement.

4.17 Allocation on Transfer. If any interest in the Partnership is transferred,
     or is increased or decreased by reason of the admission of a new Partner or
     otherwise, during any Fiscal Year, the Partnership shall make an interim
     closing of its books as of the effective date of such date of transfer or
     admission and shall allocate Net Income or Net Loss or items. thereof based
     on such interim closing. All transfers of interests or admissions or
     exclusions of Partners occurring at any time during a month shall be deemed
     effective as of the opening of business on the first day of the subsequent
     month.

4.18 Minimum Interest of General Partner. Notwithstanding any indication to the
     contrary, the General Partner's interest in each item of Partnership
     income, gain, loss, deduction and credit shall be not less than .1%, except
     as otherwise required pursuant to Section 704(b) or Section 704(c) of the
     Code.

                                   ARTICLE 5.

                                CAPITAL ACCOUNTS

5.1  Capital Accounts. A separate capital account ("Capital Account") shall be
     maintained for each Partner. There shall be credited to each Partner's
     Capital Account the amount of any cash actually contributed by such Partner
     to the capital of the Partnership (or deemed contributed pursuant to
     Regulations Section 1.704-1(b)(2)(iv)(c)), the Book Value of any property
     contributed by such Partner to the capital of the Partnership (net of any
     liabilities secured by such property that the Partnership is considered to
     assume or to take subject to under Code Section 752), such Partner's share
     of the Net Profit (and all items in the nature of income or gain that are
     specially allocated to the Partner under Article 4 hereof) of the
     Partnership and the amount of any Partnership liabilities that are assumed
     by the Partner or secured by any Partnership property distributed to the
     Partner. There shall be charged against each Partner's Capital Account the
     amount of all cash distributed to such Partner by the Partnership (or
     deemed distributed pursuant to Regulations Section 1.704-1(b)(2)(iv)(c)),
     the Book Value of any property distributed to such Partner by the
     Partnership (net of any liability secured by such property that the Partner
     is considered to assume or take subject to under Code Section 752), such
     Partner's share of the Net Loss (and all items in the nature of deduction
     or loss that are specially allocated to the Partner under Article 4 hereof)
     of the Partnership and the amount of any liabilities of the Partner assumed
     by the Partnership or which are secured by any property contributed by the
     Partner to the Partnership.

5.2  Adjustment for In-Kind Distributions. If the Partnership at any time
     distributes any of its assets in-kind to any Partner, the Capital Account
     of each Partner shall be adjusted as contemplated by Section 4.5, as
     applicable, to account for that Partner's allocable share


                                       12



     (as determined under Article 4 above) of the Net Profit or Net Loss that
     would have been realized by the Partnership had it sold the assets
     distributed for their respective fair market values immediately prior to
     their distribution.

5.3  Property Revaluation. The Capital Accounts shall be adjusted to reflect a
     revaluation of Partnership property to its fair market value on the date of
     adjustment upon the occurrence of any of the following events:

     5.3.1 an increase in any new or existing Partner's Partnership Percentage
          resulting from the contribution of money or property by such Partner
          to the Partnership including a conversion of debt into Partnership
          interests,

     5.3.2 any reduction in a Partner's Partnership Percentage resulting from a
          distribution to such Partner in consideration of all or part of his
          Partnership interest, unless such distribution is pro rata to all
          Partners in accordance with their respective Partnership Percentages,
          and

     5.3.3 whenever else allowed under Regulations Section 1.704-1(b)(2)(iv)(f).

     The adjustments to Capital Accounts shall reflect the manner in which the
     unrealized Net Profit or Net Loss inherent in the property would be
     allocated if there were a disposition of the Partnership's property at its
     fair market value on the date of adjustment.

5.4  Interpretation. It is the intention of the Partners that the Capital
     Accounts be maintained strictly in accordance with the capital account
     maintenance requirements of Regulations under Code Section 704(b). The
     foregoing provisions and the other provisions of this Agreement relating to
     the maintenance of the Capital Accounts are intended to comply with such
     Regulations and shall be interpreted and applied in a manner consistent
     with such Regulations and any amendment or successor provision thereto. The
     General Partner also shall make any appropriate modifications if
     unanticipated events might otherwise cause this Agreement not to comply
     with the Regulations, so long as such changes would not cause a material
     change in the relative economic benefits of the Partners under this
     Agreement.

5.5  Obligation to Repay or Restore. If the Limited Partner has received
     distributions of Net Cash Flow or Net Proceeds of a Capital Transaction, it
     may be obligated under the Act to repay or restore to the Partnership all
     or a portion of the amount received if such distributions cause the fair
     market value of the Partnership's assets to be less than the Partnership's
     liabilities. Subject to the foregoing requirement, the Limited Partner
     shall not be required to pay to the Partnership or to any other Partner any
     deficit or negative balance which may exist from time to time in its
     Capital Account; provided, however, in the event the Limited Partner
     erroneously receives distributions in excess of his interest in such
     distributions as specified in Sections 4.1, 4.2 and 4.3 hereof ("Excess
     Distributions"), then, as between the Partners but not for the benefit of
     other Persons, such Partner shall be indebted to the Partnership for such
     Excess Distributions, and such indebtedness shall be payable on terms or on
     demand as may be prescribed by the General Partner. The General Partner
     shall contribute, prior to the dissolution and


                                       13



     liquidation of the Partnership, an amount equal to the lesser of (a) an
     amount which will cause the total Capital Contributions made by the General
     Partner during the Partnership Term to equal one-tenth of one percent (.1%)
     of the total Capital Contributions made to the Partnership (including the
     Capital Contribution to be made by the General Partner pursuant to this
     Section 5.5), or (b) the deficit balance in its Capital Account as of the
     date of such dissolution and liquidation.

5.6  Tax Elections. The General Partner is authorized, in its reasonable
     discretion, to make all elections permitted or required of the Partnership
     under Regulations Section 1.704-1, Code Section 754 and any other
     provisions of the Code.

                                   ARTICLE 6.

                               OPERATING EXPENSES

6.1  Operating Expenses and Reimbursements. The Partnership shall bear (or
     reimburse the General Partner for its payment of) all costs and expenses of
     every kind and description incurred in connection with the organization,
     operation, liquidation and dissolution of the Partnership including, but
     not limited to, travel expenses, fees of consultants, accountants, and
     attorneys, fees and expenses of the preparation of quarterly unaudited
     financial statements, the annual audit, if any, and tax returns of the
     Partnership, interest on indebtedness of the Partnership, and fees and
     expenses incurred in any litigation by or against the Partnership.

                                   ARTICLE 7.

                 ADMISSION OF PARTNERS; ASSIGNMENT OF INTERESTS

7.1  Admission of Additional Partners. Without the written consent of all
     Partners, no additional partners shall be admitted to the Partnership.

7.2  Assignment or Transfer of Partnership Interests. Without the written
     consent of all Partners, no Partner shall sell, assign, pledge, mortgage,
     or otherwise dispose of or Transfer, in whole or in part, its Partnership
     interest or its share of the Partnership's capital, assets or property or
     enter into any agreement, the result of which would be for another Person
     to become directly or indirectly interested in the Partnership.

                                   ARTICLE 8.

                       MANAGEMENT DUTIES AND RESTRICTIONS

8.1  Powers of General Partner.

     8.1.1 General Authority of the General Partner. The business and affairs of
          the Partnership will be managed exclusively by the General Partner.
          Except as otherwise expressly provided in this Agreement with respect
          to matters requiring the approval of the Limited Partner, all
          determinations relating to the business and affairs of the Partnership
          will be made by the General Partner in its sole discretion


                                       14



          and will not give rise to any right or claim by any Partner or the
          Partnership unless made in violation of an express provision of this
          Agreement. Except as otherwise provided herein, the General Partner
          will have complete authority to take, in its own name or in the name
          of the Partnership, any action that the General Partner determines to
          be appropriate under this Agreement or for the conduct of the business
          of the Partnership, including without limitation the actions specified
          in Section 8.1.2. All decisions and actions taken by the General
          Partner under the authority of this Section 8.1 will be binding upon
          all of the Partners and the Partnership.

     8.1.2 Specific Authority of General Partner. Except as otherwise expressly
          set forth in this Agreement, the General Partner shall have all rights
          and powers of a general partner under the Act. Subject to the
          limitations contained in Section 8.1.3, the authority of the General
          Partner to manage the business and affairs of the Partnership will
          include complete authority:

          (a)  To acquire, dispose of, lease or exchange assets of the
               Partnership;

          (b)  To borrow money or otherwise create or assume indebtedness for
               the Partnership;

          (c)  To create an Encumbrance on all or any part of the Partnership's
               assets in order to secure loans or advances to or assumed by the
               Partnership or any Person in which the Partnership has a direct
               or indirect interest, or any obligation of the Partnership or any
               Person in which the Partnership has a direct or indirect
               interest, or for any other Partnership purpose;

          (d)  To execute and deliver for the Partnership agreements and other
               instruments (including, without limitation, instruments creating
               an Encumbrance on Partnership assets) for any purpose authorized
               by clause (c), including without limitation agreements and
               instruments in connection with loans or the Transfer of assets of
               the Partnership;

          (e)  To collect all income of the Partnership and to satisfy all
               obligations of the Partnership, including without limitation
               expenses of the General Partner relating to the Partnership
               described in Article 6 and Section 8.4 and the indemnification
               obligations arising under Section 11.11;

          (f)  To prepare or cause to be prepared and file all tax returns for
               the Partnership (but not the tax returns or other reports of the
               Partners);

          (g)  To make all tax elections for the Partnership, including without
               limitation any special basis adjustments under Section 754 of the
               Code, provided that the Partner requesting any Section 754
               election must agree to reimburse the Partnership for any costs
               incurred by the Partnership in making the election or in
               maintaining or preparing any additional records or reports in
               connection with the election;


                                       15



          (h)  To prosecute, defend and settle legal, arbitration or
               administrative proceedings on behalf of or against the
               Partnership;

          (i)  To manage and maintain the assets of the Partnership or any
               Person in which the Partnership has a direct or indirect
               interest;

          (j)  To establish separate bank accounts for the deposit of monies
               received on behalf of the Partnership and to disburse all funds
               on deposit on behalf of the Partnership in amounts and at times
               as required in connection with the business of the Partnership;

          (k)  To procure and maintain insurance against risks and in amounts
               determined to be appropriate by the General Partner, including
               without limitation insurance under which the General Partner and
               its partners, agents and affiliates are insureds;

          (l)  To advance funds of the Partnership to any Person in which the
               Partnership has a direct or indirect interest;

          (m)  To do or cause to be done any other act which the General Partner
               considers to be appropriate to carry out any of its powers or in
               furtherance of the purposes or character of the Partnership;

          (n)  To establish such reserves from Partnership funds as the General
               Partner, in its sole discretion, may deem necessary or advisable
               for Partnership operations and for the payment of Partnership
               obligations;

          (o)  To exercise all rights, powers, privileges and other incidents of
               ownership or possession with respect to any Partnership assets,
               including, without limitation, voting equity or debt securities
               held by the Partnership;

          (p)  To consult with legal counsel, independent public accountants,
               real estate brokers and other consultants selected by the General
               Partner on behalf of the Partnership;

          (q)  To take all action which may be necessary or appropriate for the
               continuation of the Partnership's valid existence as a limited
               partnership under the laws of the State of Texas and of each
               other jurisdiction in which such existence is necessary to
               protect the limited liability of the Limited Partner or to enable
               the Partnership to conduct the business in which it is engaged;

          (r)  To resolve, in its sole discretion, any ambiguity regarding the
               application of any provision of this Agreement in the manner it
               deems equitable, practicable and consistent with this Agreement
               and applicable law; and,


                                       16



          (s)  To do such other acts as the General Partner may deem necessary
               or advisable, or as may be incidental to or necessary for the
               conduct of the business of the Partnership.

     8.1.3 Actions Requiring Limited Partner Approval. Notwithstanding Section
          8.1.2, the General Partner may not, without the written consent of the
          Limited Partner take or commit to take any of the following actions:

          (a)  Transfer all or substantially all of the Partnership's assets,
               whether in one transaction or a series of related transactions;

          (b)  Effect the reorganization, merger or consolidation of the
               Partnership with any other entity.

          (c)  Any act in contravention of this Agreement;

          (d)  Any act which would make it impossible to carry on the ordinary
               business of the Partnership, other than a Transfer of all or
               substantially all of the assets of the Partnership authorized
               under Section 8.1.3(a) or a reorganization, merger or
               consolidation authorized under Sections 8.1.3(b);

          (e)  Confess a judgment against the Partnership except in connection
               with the settlement of an action or proceeding; or,

          (f)  Incur any debt, on behalf of the Partnership or otherwise, for
               which the Limited Partner shall be directly or personally liable
               to any extent.

8.2  Authority as to Third Persons. Notwithstanding Section 8.1.3, the signed
     statement of the General Partner reciting that it has the authority or
     necessary approval of the Limited Partner for any action, as to any third
     Person, will be conclusive evidence of the authority of the General Partner
     to take that action and of compliance with Section 8.1.3, if applicable.
     The Limited Partner will promptly execute instruments determined by the
     General Partner to be appropriate to evidence the authority of the General
     Partner to consummate any transaction permitted by this Agreement.

8.3  Compensation and Expenses of the General Partner. The General Partner will
     not receive any compensation from the Partnership for serving as General
     Partner, but all expenses incurred by the General Partner in connection
     with its service as General Partner (including without limitation charges
     for legal, accounting, data processing, administrative, executive, tax and
     other services rendered) will be paid or promptly reimbursed by the
     Partnership. Nothing contained in this Section 8 is intended to affect the
     distributions to the General Partner or the amounts that may be payable to
     the General Partner by reason of its interest in the Partnership.

8.4  Covenants of the General Partner. The General Partner shall devote such
     time, effort, and attention as may be reasonably necessary, advisable, or
     appropriate to manage and direct the operations, business and affairs of
     the Partnership.


                                       17



8.5  Limitations on Authority. The authority of the General Partner over the
     conduct of the operations, business, and affairs of the Partnership shall
     be subject only to the Act and such further limitations as are expressly
     stated in this Agreement.

8.6  No Withdrawal From Partnership. Except as contemplated by this Agreement,
     no Partner may withdraw from the Partnership at any time.

8.7  Officers. The General Partner may, from time to time, designate one or more
     individuals to be an officer of the Partnership. Any officer so designated
     shall have such authority and perform such duties as the General Partner
     may, from time to time, delegate to such officer. Each officer shall hold
     office until the earlier to occur of his or her death, disability,
     resignation, removal by the General Partner or replacement by the General
     Partner. The salaries or other compensation, if any, of any officer of the
     Partnership shall be fixed from time to time by the General Partner.
     Subject to any contractual requirements, any officer may resign as such as
     any time. Such resignation shall be made in writing and shall take effect
     at the time specified therein, or if no time be specified, at the time of
     its receipt by the General Partner. The acceptance of a resignation shall
     not be necessary to make it effective, unless expressly so provided in the
     resignation. Any officer may be removed as such, either with or without
     cause, by the General Partner whenever in its judgement the best interests
     of the Partnership will be served thereby. Designation of an officer shall
     not of itself create contract rights. Any vacancy occurring in any officer
     position of the Partnership may be filled by the General Partner.

                                   ARTICLE 9.

                         DISSOLUTION OF THE PARTNERSHIP

9.1  Dissolution. The Partnership shall be dissolved upon the happening of any
     of the following events:

     9.1.1 the expiration of the Partnership Term;

     9.1.2 with the prior consent of the General Partner and the Limited
          Partner;

     9.1.3 an "Event of Withdrawal," as defined in the Act, of the General
          Partner; and

     9.1.4 the entry of a decree of judicial dissolution under Section 8.02 of
          the Act.

9.2  Continuation. Upon the occurrence of an event identified in Section 9.1.1
     or 9.1.3, the business of the Partnership will be continued if within 90
     calendar days the Limited Partner elects by written action to continue the
     business of the Partnership and designate one or more Persons to be a
     General Partner of the Partnership. If the business of the Partnership is
     continued, the interest of the General Partner will be converted to that of
     a limited partner. If the Limited Partner fails to continue the
     Partnership's business as provided in this Section 9.2, the Partnership
     will be liquidated under Section 9.4.


                                       18



9.3  Events Affecting a Limited Partner. The Bankruptcy, liquidation,
     dissolution, reorganization, merger, sale of substantially all the stock or
     assets of, or other change in the ownership or nature of the Limited
     Partner shall not dissolve the Partnership.

9.4  Liquidation Procedures.

     9.4.1 Upon dissolution of the Partnership the General Partner or, if there
          is no General Partner, such Person or Persons as the Limited Partner
          shall designate as liquidating trustees shall commence immediately to
          wind up the affairs of the Partnership. The General Partner or such
          liquidating trustees shall use their best judgment as to when to
          dispose of the Partnership's assets or to make distributions in-kind
          in order to maximize the return to the Partners from such assets.

     9.4.2 The assets of the Partnership remaining after payment of the costs
          and expenses of winding up shall be applied in the following priority:

          (a)  To payment of the costs and expenses of the winding up,
               liquidation and termination of the Partnership;

          (b)  To the creditors of the Partnership, other than Partners, all
               amounts due them from the Partnership in the order of priority
               established by law;

          (c)  To the Partners, all amounts due them in repayment of any loans
               to the Partnership pursuant to Section 3.3;

          (d)  To the establishment of any reserves deemed appropriate by the
               General Partner or liquidating trustees for any liabilities or
               obligations of the Partnership, which reserves will be held for
               the purpose of paying liabilities or obligations and, at the
               expiration of a period the General Partner or liquidating
               trustees deems appropriate, will be distributed in the manner
               provided in Section 9.4.2(e); and,

          (e)  To the payment to the Partners of the positive balances in their
               respective Capital Accounts, pro rata, in proportion to the
               positive balances in those Capital Accounts after giving effect
               to all allocations and distributions under Article 4 for all
               prior periods, including the period during which the process of
               liquidation occurs.

          If the General Partner or the liquidating trustees, in their sole
          discretion, deem it not feasible or desirable to liquidate to each
          Partner its allocable share of each asset to be distributed in-kind,
          the General Partner or the liquidating trustees may allocate and
          distribute specific assets to one or more Partners as the General
          Partner or the liquidating trustees shall reasonably determine to be
          fair and equitable, taking into consideration, among other things, the
          value of the assets, the indebtedness secured by the assets and the
          tax consequences of the proposed distribution upon each of the
          Partners. Any distributions in-kind shall be subject


                                       19



          to such conditions relating to the disposition and management thereof
          as the General Partner or the liquidating trustees deem reasonable and
          equitable.

9.5  Termination. The Partnership shall terminate when all property owned by the
     Partnership has been disposed of, and any proceeds from the sale or other
     disposition of all of the Partnership property, after payment of or
     provision for all liabilities to creditors of the Partnership, has been
     distributed to the Partners.

9.6  No Petition for Dissolution. The Partners agree that irreparable damage
     would be done to the goodwill and reputation of the Partnership if any
     Partner should bring an action in any court to dissolve the Partnership and
     to have a liquidator or receiver for the Partnership appointed. Care has
     been taken in this Agreement to provide what the parties feel is fair and
     just payment in liquidation of the interest of all Partners. Accordingly,
     each Partner hereby waives and renounces its right to file or pursue any
     such petition for dissolution of the Partnership or the partition of any
     Partnership property, or to seek the appointment by any court of a
     liquidator or receiver for the Partnership.

9.7  Compliance with Timing Requirements of Treasury Regulations.
     Notwithstanding anything in this Article 9 to the contrary, in the event
     the Partnership is "liquidated." within the meaning of Regulations Section
     1.704-1(b)(2)(ii)(g), distributions will be made to the Partners who have
     positive Capital Account balances pursuant to Section 9.4 in a manner that
     complies with Regulations Section 1.704-1(b)(2)(ii)(b)(2). However, a
     liquidation occurring as a result of a Partnership termination, as defined
     in Section 708(b)(1)(B) of the Code, will not require an actual
     distribution of Partnership assets, but will instead be treated as a
     constructive liquidation and reformation in the manner described in
     Regulations Section 1.708-1(b)(1)(iv).

                                  ARTICLE 10.

                        FINANCIAL ACCOUNTING AND REPORTS

10.1 Financial and Tax Accounting and Reports. The tax returns of the
     Partnership shall be filed on an accrual basis. The General Partner shall
     cause the Partnership's tax returns to be prepared and a Schedule K-1 or
     any successor form to be prepared and delivered in a timely manner to each
     of the Partners. In the event of an income tax audit of the Partnership or
     any judicial or administrative proceeding in connection with the income tax
     returns of the Partnership, the Tax Matters Partner shall be authorized to
     act for and, to the extent provided by the Code, its decision shall be
     binding upon the Partnership and the Partners. The books and records of the
     Partnership shall be kept in accordance with the accrual method of
     accounting.

10.2 Valuation. The valuation of the assets of the Partnership for the purpose
     of valuing distributions in-kind made pursuant to Section 4.5 or Section
     9.4 of this Agreement and for any other purpose shall be the fair market
     value as determined by the General Partner in good faith, and such
     determination will be binding on the Partners.

10.3 Supervision; Inspection of Books. Proper and complete books of account of
     the business of the Partnership shall be kept under the supervision of the
     General Partner at the


                                       20



     principal place of business of the Partnership. Such books shall be open to
     inspection by the Limited Partner, or its accredited representatives, at
     any reasonable time during normal business hours.

10.4 Consent in Lieu of Meeting. Any action which may be taken by the Partners
     at a meeting may be effected through the execution of written consents by
     the requisite Partnership Percentage of the Partners.

10.5 Withholding. Notwithstanding any provision in this Agreement to the
     contrary, the General Partner may withhold from any distribution or amount
     due to the Limited Partner any amounts required to be withheld pursuant to
     any applicable federal, state, or local tax requirements, with such
     withheld amount treated as if it was distributed to the Limited Partner.
     The determination of the General Partner as to the necessity of such
     withholding shall be binding upon the Limited Partner.

                                  ARTICLE 11.

                                OTHER PROVISIONS

11.1 Execution and Filing of Documents. The General Partner and the Limited
     Partner (or the General Partner as the Limited Partner's attorney-in-fact)
     shall execute and file such certificates and other documents as may be
     required by the Act and other applicable laws. The General Partner shall
     cause the Partnership to be qualified, formed, reformed or registered under
     the limited partnership laws, assumed or fictitious name statutes or
     similar laws in any jurisdiction in which the Partnership owns property or
     transacts business if such qualification, formation, reformation or
     registration is necessary in order to protect the limited liability of the
     Limited Partner or to permit the Partnership lawfully to own property or
     transact business as a limited partnership. The General Partner shall
     execute, file and publish all such certificates, notices, statements or
     other instruments appropriate to conduct the business of the Partnership
     and to maintain the limited liability of the Limited Partner.

11.2 Other Instruments and Acts. The Partners agree to execute any other
     instruments or perform any other acts that are or may be necessary to
     effectuate and carry on the Partnership created by this Agreement.

11.3 Binding Agreement. This Agreement shall be binding upon and inure to the
     benefit of the permitted transferees, successors, assigns, and legal
     representatives of the Partners.

11.4 Governing Law. This Agreement shall be governed by and construed under the
     laws of the State of Texas, without giving effect to the principles of
     conflict of laws.

11.5 Notices. Any notice or other communication that one Partner desires to give
     to another Partner or the Partnership or that the Partnership desires to
     give to a Partner shall be in writing, and shall be deemed effectively
     given upon (i) personal delivery, (ii) transmission by facsimile or (iii)
     the third business day following deposit in any United States mail box, by
     registered or certified mail, postage prepaid, addressed, in the case of a
     Partner, to the Partner at the address shown on the books and records of
     the Partnership


                                       21



     or at such other address as a Partner may designate by fifteen (15) days'
     advance notice to the other Partners and, in the case of the Partnership,
     to its principal office designated in Section 2.4.

11.6 Power of Attorney. The Limited Partner appoints the General Partner its
     attorney-in-fact, with full power of substitution and re-substitution, to
     execute in the Limited Partner's name and deliver:

          (a)  A Partnership Certificate and any amendments to the Partnership
               Certificate that the General Partner deems appropriate;

          (b)  Any instrument that the General Partner deems appropriate in
               order to qualify the Partnership to do business in any
               jurisdiction and any other instrument relating to the
               qualification or registration of the Partnership or the use of an
               assumed or fictitious name that the General Partner deems
               appropriate;

          (c)  All certificates and other instruments that may be appropriate to
               effect the dissolution and termination of the Partnership under
               Article 9;

          (d)  All reports, forms and schedules that the General Partner
               determines appropriate to file with any governmental body in
               connection with any Partnership activity;

          (e)  Any amendment to this Agreement appropriate to reflect the
               Transfer of a Partnership interest permitted by this Agreement,
               or the admission to, or withdrawal from, the Partnership of a
               Partner permitted by this Agreement, the conversion of a General
               Partner interest into a Limited Partner interest as provided in
               this Agreement or any Capital Contribution permitted by this
               Agreement; and,

          (f)  Any amendment to this Agreement authorized under Section 11.7.

     The power of attorney granted under this Section 11.6 is coupled with an
     interest and is irrevocable and will survive the death, dissolution,
     bankruptcy and withdrawal from the Partnership of any Partner or the
     Transfer of its Partnership interest.

11.7 Amendment.

     11.7.1 Except for such amendments as result from the operation of the
          various provisions of this Agreement, this Agreement may be amended
          only with the written consent of the Limited Partner and the General
          Partner.

     11.7.2 The General Partner, acting alone, may make ministerial changes in
          the Partnership Agreement for the purpose of correcting errors and
          inconsistencies and to comply with federal, state and local rules,
          regulations and laws, provided that the liability of the Limited
          Partner for Partnership debts shall not be increased


                                       22



          by such amendment nor shall the right of the Limited Partner to
          Partnership allocations or distributions be adversely affected
          thereby.

11.8 Entire Agreement. This Agreement shall constitute the entire agreement of
     the Partners and supersede all prior agreements between the Partners with
     respect to the Partnership.

11.9 Titles; Subtitles. The titles and subtitles used in this Agreement are used
     for convenience only and shall not be considered in the interpretation of
     this Agreement.

11.10 Exculpation. Neither the General Partner, nor any of its officers,
     directors, employees, agents, or Affiliates, shall be liable to the Limited
     Partner or the Partnership for any action taken or failure to act on behalf
     of the Partnership within the scope of authority conferred on the General
     Partner by this Agreement, or by law, or done in reliance in good faith on
     the opinion of legal counsel, except in the case of (i) its willful breach
     of a material provision of the Act or this Agreement; (ii) the breach of
     its fiduciary responsibilities to the Partnership or the Limited Partner;
     or, (iii) its gross negligence in connection with the business and affairs
     of the Partnership.

11.11 Indemnification of the General Partner. The Partnership, to the extent of
     its assets legally available for that purpose, will indemnify and hold
     harmless the General Partner and any partner, shareholder, director,
     officer, agent, affiliate and professional or other advisor of the General
     Partner (collectively, the "Indemnified Persons"), from and against any and
     all loss, damage, expense (including without limitation reasonable fees and
     expenses of attorneys and other advisors and any court costs incurred by
     any Indemnified Person) or liability by reason of anything any Indemnified
     Person does or refrains from doing for, or in connection with the business
     or affairs of, the Partnership, except to the extent that the loss, damage,
     expense or liability results from (a) the Indemnified Person's gross
     negligence, willful misconduct or knowing violation of law, or (b) the
     Indemnified Person's breach of any fiduciary responsibilities to the
     Partnership or the Limited Partner. These indemnification rights are in
     addition to any rights the Indemnified Persons may have against third
     parties.

     Notwithstanding anything in this Agreement to the contrary, no Partner
     shall be obligated to contribute any amount to the Partnership in order to
     satisfy the Partnership's indemnification obligations under this Section
     11.11, such obligations being limited at all times to the assets of the
     Partnership.

11.12 Limitation of Liability of the Limited Partners. No Limited Partner shall
     be bound by, or be personally liable for, the expenses, liabilities, or
     obligations of the Partnership in excess of its Capital Contributions to
     the Partnership plus such additional amounts determined pursuant to Section
     5.5.

11.13 Ambiguities. The General Partner shall have full power and authority to
     resolve questions of interpretation and construction arising under this
     Agreement, and its resolution of such ambiguities or questions shall be
     final and binding on the Partnership and all of its Partners and their
     permitted transferees, successors, assigns and legal representatives.


                                       23



11.14 No Right to Partition. Each Partner hereby irrevocably waives any and all
     rights that it may have to maintain or institute an action for partition of
     the Partnership assets.

            [THE REMAINDER OF THE PAGE IS INTENTIONALLY LEFT BLANK.]


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     IN WITNESS WHEREOF, the Partners have executed this Agreement as of the
date first above written.

                                        GENERAL PARTNER:

                                        REDI-MIX MANAGEMENT, INC.,
                                        a Texas corporation


                                        By: [signed]
                                            ------------------------------------
                                        Name: Gerald A. Berkhold
                                        Title: President


                                        LIMITED PARTNER:

                                        ATLAS INVESTMENTS INC.,
                                        a Nevada corporation


                                        By: [signed]
                                            ------------------------------------
                                        Name: Ronald L. Graham
                                        Title: Vice President


                                       25