Question: Problem 4 . 2 A concrete mix design yields a water - cement ratio of 0 . 4 2 , 1 , 9 0 0

Problem 4.2
A concrete mix design yields a water-cement ratio of 0.42,1,900lbyd3 of dry coarse aggregate, 2% air content, and 225lbyd3 of water. The bulk specific gravity of cement used is 3.15. The coarse aggregate has a bulk specific gravity of 2.65, in-situ moisture content of 2.5%, and an absorption of 4.5%. The fine aggregate (sand) has a bulk specific gravity of 2.42, in-situ moisture content of 0.5%, and an absorption of 2.5%.
Determine the weight of cement, wet coarse aggregate, wet fine aggregate, and water for a 1yd3 trial mix.
Problem 4 . 2 A concrete mix design yields a

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