Micro Fine Sized Palm Oil Fuel Ash Produced Using a Wind Tunnel Production System

Table 2

Size of sample from test.

Sample	OPC	Fly ash (FA)	POFA (2 m)	POFA (4 m)	POFA (6 m)	POFA (8 m)	POFA (10 m)
Average pore radius [μm]	1.46 × 10^−4	0.000820	0.000668	0.000799	0.000965	0.000820	0.000801
Average pore dia. [μm]	0.000291	0.001639	0.001335	0.001598	0.001930	0.001632	0.001602
Total pore volume [cc/g]	0.00027	0.00091	0.00533	0.00597	0.00073	0.000787	0.000786
Specific surface area [m^2/g]	3.730	2.221	15.967	18.314	12.367	19.196	19.618