Investigation of the Effect of Larestan’s Pipeline Water on the Mechanical Properties of Concretes Containing Granite Aggregates

Table 7

The results of the compressive strength test of concrete made by using tap water and pipeline water with 50% of granite aggregate.

Age (day)	Tap water concrete (MPa)	Pipeline water concrete (MPa)	Strength decline (%)
7	20.4	19.1	6.3725
14	26.2	24.8	5.3435
28	35.4	34.5	2.5423
56	42.1	41.5	1.4251
90	48.5	48.2	0.6185