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0 <br />1.05Q UALITY ASSURANCE <br />A. Use adequate numbers of skilled workers who are thoroughly trained and <br />experienced in the necessary crafts and who are completely familiar with the <br />specified requirements and the methods needed for proper performance of the Work <br />of this Section. <br />B. Do not commence placement of concrete until mix designs have been reviewed and <br />approved by the Engineer, until copies of the approved mix designs are at the Site, <br />and any reinforcing steel has been inspected and approved by the Engineer. <br />PART 2 -PRODUCTS <br />2.01 FORMS <br />A. Forms shall comply with the applicable requirements of Standard Specifications <br />Section 51-1.05. <br />B. Construct forms to the exact sizes, shapes, lines, and dimensions as required to <br />obtain accurate alignment, locations, grades, and level and plumb work in the <br />finished structure. <br />2.02 REINFORCEMENT <br />A. Reinforcement shall conform to the requirements of Standard Specifications <br />Section 52-1.02A and comply with the following as minimums: <br />2.03 CONCRETE <br />A. Portland cement concrete for structures shall be Class A concrete in conformance <br />with Standard Specifications Section 90 and shall comply with the following as <br />minimums: <br />B. Portland Cement: ASTM C 150, Type II, low alkali. <br />1 C. Water: Clean and potable. <br />D. Provide concrete with the compressive strengths shown on the Construction <br />Drawings. When such strengths are not shown on the Drawings or otherwise <br />specified for the item of work, provide the following as minimums: <br />' 1. Ditch lining 3,500 psi <br />1 SHAW EwR®NMENTAL, /NC. <br />San Joaquin County — Extension of Cap Corral Hollow Sanitary Landfill — CH_Closure Cap Ext Proj_Technical Specs 4-19-12 Revl.DocRev, 0, 04/05/2012 <br />Cast -in -Place Concrete <br />1 03300-2 <br />