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

Table 5

Concrete mix proportions and strengths of resultant concrete.

Strength grade	Lithology	Unit weight (kg/m^3)						Compressive strength (MPa)
		Cement	Water	CA	Sand	Fines	WR	3 d	28 d
C30	RS	327	180	1079	814	0	0.59	20.1	37.4
	DL	327	180	1079	814	0	0.59	21.3	38.1
	LS	327	180	1079	814	0	0.59	21.9	39.2
	GR	327	180	1079	814	0	0.59	21.6	40.3
	BA	327	180	1079	814	0	0.59	22.6	40.1
	QZ	327	180	1079	814	0	0.59	20.3	38.9
C60	RS	531	170	1061	738	0	1.86	50.5	69.9
	DL	531	170	1061	738	0	1.86	52.1	71.1
	LS	531	170	1061	738	0	1.86	53.5	72.9
	GR	531	170	1061	738	0	1.86	55.7	75.8
	BA	531	170	1061	738	0	1.86	54.9	74.8
	QZ	531	170	1061	738	0	1.86	53.9	72.8