Effects of Lysinibacillus sphaericus on Physicomechanical and Chemical Performance of OPC Blended with Natural Tuff and Pulverized Fly Ash

Table 1

Results of chemical analysis of the test materials used.

Oxide (%)	OPC	PPC	PFA	Volcanic tuff
SiO2	20.312	33.510	64.207	63.20
Cao	64.35	42.801	0.810	1.740
Al2O3	5.731	7.240	22.800	17.21
Fe2O3	3.524	5.400	6.701	8.161
Na2O	0.194	0.080	0.010	0.230
K2O	0.402	1.030	0.031	1.104
SO3	2.316	1.811	—	—
MgO	1.204	0.780	0.180	0.300
LOI	1.519	2.300	2.242	4.821
Residue (45 µm)	4.200	3.231	2.814	3.001