Utilization of Palm Oil Fuel Ash as Binder in Lightweight Oil Palm Shell Geopolymer Concrete

Table 3

Variables investigated on the OPSGC.

Mixture	POFA (%)	FA (%)	AK/B	Curing method
M1	0	100	0.55	Oven
M2	10	90	0.55	Oven
M3	20	80	0.55	Oven
M4	40	60	0.55	Oven
M5	100	0	0.55	Oven
M2-A	10	90	0.55	Ambient
M1-2	0	100	0.35	Oven
M2-2	10	90	0.35	Oven
M3-2	20	80	0.35	Oven
M4-2	40	60	0.35	Oven
M5-2	100	0	0.35	Oven