Exhibit 3.5(a) FILED In the Office of the Secretary of State of Texas DEC 1 8 1996 Corporations Section ARTICLES OF INCORPORATION OF ALLIANCE CONCRETE, INC. The undersigned, CHRISTOPHER G. SHARP, a natural person of the age of eighteen (18) years or more, acting as incorporator of a corporation under the Texas Business Corporation Act, hereby adopts the following Articles of Incorporation for such Corporation. ARTICLE ONE NAME The name of the Corporation is ALLIANCE CONCRETE, INC. ARTICLE TWO DURATION The period of its duration is perpetual. ARTICLE THREE PURPOSES The purposes for which the Corporation is organized are the transaction of any or all lawful business for which corporations may be incorporated under the Texas Business Corporation Act. ARTICLE FOUR SHARE STRUCTURE The aggregate number of shares which the Corporation shall have authority to issue is 1,000,000 shares of the par value of $1.00 each. ARTICLE FIVE COMMENCEMENT OF BUSINESS The Corporation will not commence business until it has received for the issuance of its shares consideration of the value of one thousand dollars ($1,000.00), consisting of money, labor done, or property actually received. Page 1 ARTICLE SIX REGISTERED OFFICE AND AGENT The street address of its initial registered office is 1445 MacArthur Drive, Suite 136, Carrollton, Texas 75007, and the name of its initial registered agent at such address is JOHN C. MILLER. ARTICLE SEVEN DIRECTORS The number of Directors constituting the initial Board of Directors is two (2), and the names and addresses of the persons who are to serve as Directors until the first annual meeting of the shareholders or until their successors are elected and qualified are: GERALD A. BERKHOLD 1404 Dome Tower 333 7th Avenue, S.W. Calgary, Alberta Canada T2P 2Z1 RONALD L. GRAHAM 875 Prospect Street Suite 315 LaJolla, CA 92037-4264 ARTICLE EIGHT INCORPORATOR The name and address of the incorporator is: CHRISTOPHER G. SHARP Expressway Tower, Suite 520 6116 North Central Expressway Dallas, Texas 75206 ARTICLE NINE RESTRICTIONS ON PREEMPTIVE RIGHTS No holder of any shares of any class of stock of the Corporation shall, as such holder, have any preemptive or preferential right to receive, purchase, or subscribe to (1) any unissued or treasury shares of any class of stock (whether now or hereafter authorized) of the Corporation, (2) any obligations, evidences of indebtedness, or other securities of the Corporation convertible Page 2 into or exchangeable for, or carrying or accompanied by any rights to receive, purchase, or subscribe to, any such unissued or treasury shares, (3) any right of subscription to or to receive, or any warrant or option for the purchase of, any of the foregoing securities, (4) any other securities that may be issued or sold by the Corporation, other than such (if any) as the Board of Directors of the Corporation, in its sole and absolute discretion, may determine from time to time. ARTICLE TEN DENIAL OF CUMULATIVE VOTING No shareholder shall have the right to cumulate his votes at any election for directors of this Corporation. ARTICLE ELEVEN LIABILITY OF DIRECTORS To the fullest extent permitted by Texas law, no director of the Corporation shall be liable to the Corporation or its shareholders for monetary damages for an act or omission in such director's capacity as a director of the Corporation, except for liability arising out of (1) any breach of such director's duty of loyalty to the Corporation or its shareholders; (2) acts by or omissions of such directors which are not in good faith or which involve intentional misconduct or a knowing violation of law; (3) a transaction from which such director received an improper benefit, whether or not the benefit resulted from an action taken within the scope of such director's office; (4) an act or omission by such director for which the liability of a director is expressly provided for by statute; or (5) an act by such director relating to an unlawful stock repurchase or payment of a dividend by the Corporation. The foregoing elimination of the liability to the Corporation of its shareholders for monetary damages should not be deemed exclusive of any other rights or limitations of liability or indemnity to which a director may be entitled under any other provisions of the Articles of Incorporation or Bylaws of the Corporation, any contract or agreement with the Corporation, any vote of shareholders and/or disinterested directors of the Corporation, or otherwise. Neither the amendment nor repeal of the Article Eleven, nor the adoption of any provision of the Articles of Incorporation or Bylaws inconsistent with this Article Eleven, shall eliminate or reduce the effect of this Article Eleven in respect of any matter occurring, or any cause of action, suit or claim that accrued or arose prior to such amendment, repeal or adoption of any inconsistent provisions. No amendment or modification or repeal of this Article Eleven by the shareholders of the Corporation shall adversely affect any right or protection of a director of the Corporation existing at the time of such repeal or modification or amendment. Page 3 IN WITNESS WHEREOF, the undersigned has executed these Articles of Incorporation on this 17th day of December, 1996. /s/ Christopher G. Sharp ---------------------------------------- CHRISTOPHER G. SHARP Page 4 THE STATE OF TEXAS Section Section COUNTY OF DALLAS Section I, a Notary Public, do hereby certify that on this 17th day of December, 1996, personally appeared before me CHRISTOPHER G. SHARP, who being by me first duly sworn, declared to me that he is the person who signed the foregoing document as an incorporator, and that the statements therein contained are true. (KATHERINE HUFFMAN LOGO) /s/ Katherine Huffman MY COMMISSION EXPIRES ---------------------------------------- June 19, 2000 NOTARY PUBLIC, STATE OF TEXAS Page 5