Analyzing the Mechanical, Durability, and Microstructural Impact of Partial Cement Replacement with Pumice Powder and Bamboo Leaf Ash in Concrete

Table 3

Chemical requirements for pozzolans as per ASTM C 618: 2014 [19].

S./no.	Property of pozzolan	ASTM requirements (class)
		N	F	C
I	(SiO2) + (Al2O3) + (Fe2O3) (min. %)	70	70	70
I	Sulfur trioxide (max. %)	4.5	5.0	5.0
III	Water requirement, max. percent of control	115	105	105
IV	Moisture content (max. %)	3.0	3.0	3.0
V	Loss on ignition (LOI) (max. %)	10.0	6.0	6.0