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11. Mixing time, or readings of revolution counter at beginning and end of mixing <br /> period. <br /> 12. Type and brand of cement and of fly ash. <br /> 13. Amount of cement, and of fly ash in pounds. <br /> 14. Total water content by producer, in pounds (or W/C ratio). <br /> 15. Maximum size of aggregate and gradation. <br /> 16. Weight of fine and coarse aggregate itemized in pounds. <br /> 17. Indication that all ingredients and mix proportion is certified as being <br /> previously approved. <br /> 18. Signature or initials of ready-mix representative. <br /> 19. Type of fly ash, and the amount of it. <br /> E. Concrete Pour Sequence Plan. Submit concrete pour sequence plan to the <br /> Engineer approval prior to start of concrete work. <br /> 1.05 DELIVERY, STORAGE AND HANDLING: <br /> A. Aggregates: <br /> 1. Transport and stockpile aggregates separately according to their sources <br /> and gradations. Handle aggregates in accordance with ACI 304R, Chapter <br /> 2, to prevent segregation and loss of fines. Do not allow contamination. <br /> 2. Do not use aggregates showing segregation, or allow the different grades to <br /> become mixed. <br /> 3. Do not use aggregates from different sources or different gradations <br /> alternately. Do not allow mixing of aggregates in stockpiles. <br /> 4. Do not transfer aggregates directly from trucks, railroad cars or barges to the <br /> proportioning bins when moisture content is such that it will affect the <br /> accuracy of the proportioning of the concrete mixture. In such case,stockpile <br /> the aggregates until a saturated surface-dry condition is obtained and <br /> maintain aggregates in such condition. <br /> 5. Do not increase moisture content or cool by the use of water, which may <br /> discolor aggregates. <br /> B. Packaged Cement: <br /> 08/12 03305-5 11-4179 <br />