Performance of Ecological Pervious Concrete Prepared with Sandstone/Limestone-Mixed Aggregates

Table 1

Physical and mechanical properties of the P.O42.5 silicate cement.

Density/(kg/m^3)	Specific surface area/(m^2/kg)	Coagulation time/min		Flexural strength/MPa		Compressive strength/MPa		Adequacy
		Initial condensation	Final condensation	3 d	28 d	3 d	28 d
3125	352	209	291	5.5	8.5	26.6	57.2	Qualified