Table 1: Concrete mix proportions.

Cement222 kg/m3 (489 lb/yd3)
Fly Ash55 kg/m3 (122 lb/yd3)
Coarse aggregate pea gravel849 kg/m3 (1870 lb/yd3)
Natural Sand602 kg/m3 (1325 lb/yd3)
Admixture (900 P0Y-5)0.53 liter/m3 (18 Oz/yd3)
Air content0.05
Slump125 mm (5 inch)
Water112 liter/m3 (29.5 gal/yd3)