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<br />" <br /> <br />L.J <br /> <br />" <br /> <br />1.07 ACCEPTANCE TESTS <br /> <br />LJ <br /> <br />'-1 <br /> <br />LJ <br /> <br />" <br /> <br />LJ <br /> <br />(I <br /> <br />LJ <br /> <br />" <br /> <br />L.....J <br /> <br />r~, <br /> <br />LJ <br /> <br />" <br /> <br />LJ <br /> <br />" <br /> <br />LJ <br /> <br />II <br /> <br />L.J <br /> <br />n <br /> <br />L-J <br /> <br />" <br /> <br />L.....J <br /> <br />n <br /> <br />A. <br /> <br />Conformity of aggregates to these Specification, and the actual proportions of cement, <br />aggregates, and water necessary to produce concrete conforming to the requirements set <br />forth in Table A, shall be determined by tests made with representative samples of the <br />materials to be used on the work. Tests will be made by an accredited testing laboratory, <br />and approved by the Engineer. <br /> <br />B. <br /> <br />Cement may be subject to testing to determine that it conforms to the requirements of this <br />Specification. Methods of testing shall conform to the appropriate specification, but the <br />place, time, frequency and method of sampling will be determined by the Engineer in <br />accordance with the particular need. <br /> <br />C. <br /> <br />Water content of the concrete shall be based on a curve showing the relation between water <br />content and 7 and 28-day compressive strengths of concrete made using the proposed <br />materials. The curves shall be determined by four or more points, each representing an <br />average value of at least three test specimens at each age, and shall have a range of values <br />sufficient to yield the desired data, including all the compressive strengths called for on the <br />Drawings, without extrapolation. The water content of the concrete to be used, as <br />determined from the curve, shall correspond to the test strengths of the laboratory trial <br />mixtures as shown on (Table D) below. <br /> <br />TABLE D <br /> <br />Design <br />Strength <br /> <br />Min. Lab. <br />7 Days* <br /> <br />Strength <br />28 Days** <br /> <br />3000 <br />3500 <br />4000 <br /> <br />2500 <br />3000 <br />3500 <br /> <br />3500 <br />4100 <br />4600 <br /> <br />* <br />** <br /> <br />May be employed-by preliminary design. <br />To be used for final designs. <br /> <br />E. <br /> <br />In no case, however, shall the resulting mix conflict with the limiting values for maximum <br />water-cement ratios and minimum cement contents as specified in Table A. <br /> <br />L.J PART 2 - PRODUCTS <br /> <br />" <br /> <br />2.01 MATERIALS <br /> <br />LJ <br /> <br />" <br /> <br />L.J <br /> <br />n <br /> <br />L.J <br /> <br />,-, <br /> <br />L..J <br /> <br />n <br /> <br />L-J <br /> <br />06/05 <br /> <br />" <br /> <br />L.J <br /> <br />A. <br /> <br />Materials shall conform to these Specifications and any state or local specification <br />requirements. <br /> <br />B. <br /> <br />Cement for all cast in place concrete shall be a domestic portland cement (ASTM C-150, <br />Type II) or high early strength portland cement (Type ill) free from injurious water soluble <br />salts or alkalies. High early strength cement may only be used, with written approval of the <br />Engineer. Air entraining cements may be used with written approval of the Engineer. <br />Cement brands shall be subject to approval. <br /> <br />03300-4 <br /> <br />03-4138.8 <br />