Table 2.

Concrete mix proportions.

OPC-Based Concrete
Mix	OPC (kg/m3)		Water (kg/m3)		Sand (kg/m3)		Coarse Aggregates (kg/m3)		Superplasticizer (kg/m3)
OPC20	342		205		652		1211		-
OPC40	405		190		642		1193		-
OPC60	600		190		498		1162		4
Geopolymer Concrete
Mix	Fly Ash (kg/m3)	Sand (kg/m3)		Coarse Aggregates (kg/m3)		Sodium Hydroxide (kg/m3)		Sodium Silicate (kg/m3)		Water (kg/m3)
GEO20	400	850		950		57		143		40
GEO40	400	640		1000		43.5		108.5		40
GEO60	460	700		1050		46		138		46