The following is a step-by-step example for reporting the FINAL yielded concrete mixture proportions and checks to make sure that it is theoretically and mathematically correct.
Type I/II Cement 370 lb¸ SG = 3.15
Fly Ash (Class C) 350 lb, SG = 2.75
Blast Furnace Slag 110 lb, SG = 2.55
Fibers, Nylon 6.5 lb, SG = 1.4
w/cm ratio 0.43