Laserfiche WebLink
<br />002411 <br /> <br />Duraneo Pumoine Plant - Staee J <br /> <br />~ <br /> <br />2. <br />3. <br /> <br />Meet optional false set requirements of ASTM C ISO. <br />Meet low-alkali requirements of ASTM C ISO. <br /> <br />D. Pozzolan: <br /> <br />1. ASTM C 618, Class F, <br /> <br />2. 4,0 percent, maximum, sulfur trioxide for Class F, <br /> <br />3, 2.5 percent, maximum, loss on ignition for Class F, <br /> <br />4. Strength Activity Index with Portland Cement <br /> <br />a. 75 percent minimum, percent of control, strength activity index with <br />portland cement at 7 days or 28 days. <br /> <br />b, 900 pounds per square inch minimum, strength activity index of2-inch <br />cubes with Portland cement at 7 days. <br /> <br />5, Meets requirements of Table 2, ASTM 618. <br /> <br />6, 2.5 maximum, R Factor, as determined in accordance with ASTM C 114. <br /> <br />E. Admixtures <br />1, Chemical Admixtures <br /> <br />I <br /> <br />Do not use chemical admixtures which will introduce more than 1110 of <br />I percent chloride, by weight of cement. <br /> <br />Non-chloride accelerator as approved by Contracting Officer's <br />Representative, <br /> <br />1) ASTM C 494, type C or E, non-chloride accelerator. <br /> <br />2) May be used in concrete only when the mean daily temperature in <br />the vicinity of the placement has been less than 40 degrees F for 2 <br />of the 4 days prior to placement. <br /> <br />2, Water reducing and/or set controlling (WRA) admixtures <br /> <br />b. <br /> <br />a, <br /> <br />a, ASTM C 494 <br /> <br />I) Type A, D, F, or G <br /> <br />2) Type E, non-chloride, acceptable only during cold weather <br /> <br />b, ASTM C 1017, type 1 or 2 plasticizer. <br /> <br />c. Ifuse of a WRA results in abnormal setting of the fresh concrete, or if a <br />WRA does not perform in accordance with these specifications, furnish <br />and use other brands ofWRA until an acceptable admixture is found. <br /> <br />3. Air-entraining admixtures <br /> <br />a, ASTM C 260, <br /> <br />b, If Type F or G chemical admixtures are used in concrete, use air- <br />entraining admixtures specifically formulated for these admixtures, <br /> <br />Cast-in-Place Concrete <br />03300 - 7 <br />