The Effect of Different Parameters on the Development of Compressive Strength of Oil Palm Shell Geopolymer Concrete

Table 8

Compressive strength of OPSGPC in different A/FA ratios (OPS used in saturated surface dry (SSD) conditions, mix proportion 1/0.74/0.66 (FA/sand/OPS) by weight, FA = 480 Kg/m³, W/FA = 0.37, and SP = 9.5 L/m³).

Mix order	A/FA ratio	Compressive strength (N/mm^2)
		8 Mol solution		10 Mol solution		12 Mol solution		14 Mol solution		16 Mol solution
		14-day	28-day	14-day	28-day	14-day	28-day	14-day	28-day	14-day	28-day
A1	0.20	6.91	13.04	7.84	14.18	9.15	16.07	13.75	19.84	17.31	23.44
A2	0.25	8.02	15.51	9.98	17.64	11.41	19.26	16.27	23.76	19.49	26.15
A3	0.30	9.46	17.47	11.08	20.33	14.66	23.10	19.09	27.98	20.56	28.58
A4	0.35	9.84	19.13	12.44	22.92	15.97	25.94	21.77	31.12	22.82	30.17
A5	0.40	10.63	19.68	12.84	23.11	16.22	26.42	22.43	31.93	22.91	30.43
A6	0.45	10.84	20.26	13.04	23.82	16.37	27.03	22.57	32.42	21.06	29.53
A7	0.50	10.23	19.49	13.48	23.98	16.91	27.47	21.14	31.08	20.31	28.65
A8	0.55	10.18	19.02	12.49	23.02	16.36	26.94	20.87	30.41	19.29	27.39