Characteristics of Pavement Cement Concrete Incorporating Steel Slag Powder

Table 7

The weight and strength loss of concrete after freezing and thawing.

Samples	Mass (kg)			Compressive strength (MPa)
	Before	After	Mass loss	Before	After	Strength loss
C-0	2.413	2.398	0.015	52.4	48.5	3.9
C-10	2.419	2.412	0.007	51.8	48.6	3.2
C-15	2.426	2.422	0.004	51.6	50	1.6
C-20	2.416	2.408	0.008	50.2	46.6	3.6

Note. The “Before” of compressive strength is the compressive strength of concrete at the age of 28 d, which is the 28 d compressive strength of Figure 13.