Effects of Sodium Sulfate Attack on Concrete Incorporated with Drying-Wetting Cycles

Table 2

Mix proportion of concrete.

Water-binder ratio	Cement	Fly ash	Water	Sand	Coarse aggregate	Water-reducing agent	28 d flexural strength
	kg·m^−3	kg·m^−3	kg·m^−3	kg·m^−3	kg·m^−3	kg·m^−3	(MPa)
0.35	440	0	154	649	1206	2.64	6.64
0.40	440	0	176	642	1192	1.54	5.91
	308	132	176	642	1192	0.88	4.28
	220	220	176	642	1192	0.88	3.22
0.45	440	0	198	634	1177	0	5.33