Effect of Fly Ash on Mortar Mixes with Quarry Dust as Fine Aggregate

Table 1

Physical properties of cement.

Property	Units	Results obtained	Specified value as per IS: 8112-1989
Specific gravity		3.14	3.15
Fineness (90 µ sieve)	%	7.5	—
Soundness (Le-Chatelier Test)	mm	3	10 (maximum)
Normal consistency (% of cement by weight)	%	28	30
Setting time
(i) Initial	Minutes	199	30 (minimum)
(ii) Final		290	600 (maximum)
Compressive strength
(i) Seven days	MPa	35.9	33.00
(ii) 28 days		52.7	43.00