Determine the quantities of materials required per cubic yard to create a concrete mix.
The specifications require a maximum size aggregate of 1 in., a minimum cement content of 5 sacks per cy, and a maximum water-cement ratio of 0.60. Assume 6% air voids (cement 470 Ib per cy; water 4.52 cflcy; fine aggregate 1,0681b/cy; coarse aggregate 1,986Ib/cy).