Answer to Question #321488 in Civil and Environmental Engineering for Chaddwick

Question

A concrete mix with a 75-mm slump, water-cement ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1850 kg/m^3 of coarse aggregate and its maximum aggregate size is 25 mm.

a. Compute the required weight of coarse aggregate per cubic meter.

b. To adjust the mix so as to increase the compressive strength, the water to-cement ratio is reduced to 0.45. Will the quantity of coarse aggregate