Frost Durability and Strength of Concrete Prepared with Crushed Sand of Different Characteristics

Table 3

Concrete mix proportions and strengths of resultant concrete.

Strength grade	Fines content	⁢Unit weight (kg/m^3)						Compressive strength (MPa)
		Cement	Water	CA	CS (DL)	Fines	WR	3 d	28 d
C30	Control	327	180	1079	814	0	0.59	21.3	38.1
	5%	327	180	1079	773.3	40.7	0.65	23.8	39.0
	10%	327	180	1079	732.6	81.4	0.65	25.6	41.3
	15%	327	180	1079	691.9	122.1	0.65	27.4	43.3
	20%	327	180	1079	651.2	162.8	0.65	27.7	44.9
C60	Control	531	170	1061	738	0	1.86	52.1	71.1
	3%	531	170	1061	715.9	22.1	2.06	52.7	76.1
	7%	531	170	1061	686.3	51.7	2.06	57.8	78.9
	10%	531	170	1061	664.2	73.8	2.06	58.8	77.7
	15%	531	170	1061	627.3	110.7	2.06	59.4	72.9