Durability Study on High Calcium Fly Ash Based Geopolymer Concrete

Table 2

Mix proportions of GPC and OPC.

Materials, kg/m^3
Grade	Coarse aggregate	Fine aggregate	Fly ash	Cement	Water/cement	Na2SiO3	NaOH
	(20 mm)	(sand)
M20	1379	567	383		—	137	54.51
M40	1159	522	527	—	—	133.33	53.33
M60	1070	505	530	—	—	128.59	51.59
M20	1258	572	—	350	0.5	—	—
M40	1184	564	—	463	0.4	—	—
M60	1261	540	—	530	0.31	—	—