Binary Effect of Fly Ash and Palm Oil Fuel Ash on Heat of Hydration Aerated Concrete

Table 2

Physical properties of OPC, POFA, and PFA.

Physical properties	OPC	POFA	PFA
Specific gravity	3.15	2.42	2.62
Particle retained on 45 µm sieve	4.58	4.98	6.92
Median particle d10	—	1.69	—
Median particle d50	—	14.58	—
Blaine fineness (cm^3/g)	3999	4935	3205
Soundness (mm)	1.0	2.0	—
Strength Activity Index (%)
At 7 days	—	80	84
At 28 days	—	84	92