Effect of Recycled Aggregate Content on Water Permeability and Pore Structure of Pervious Concrete Pavement

Table 3

The strength of RAPC.

Specimen type	Compressive strength (MPa)	Splitting tensile strength (MPa)	Three-point bending strength (MPa)	Four-point bending strength (MPa)	Direct tensile strength (MPa)
RAPC0	44.996 (σ = 1.039)	2.382 (σ = 0.089)	2.543 (σ = 0.075)	3.318 (σ = 0.101)	2.301
RAPC25	32.723 (σ = 1.256)	2.062 (σ = 0.094)	1.865 (σ = 0.106)	2.704 (σ = 0.116)	2.250
RAPC50	29.861 (σ = 1.291)	1.936 (σ = 0.109)	1.771 (σ = 0.116)	2.508 (σ = 0.113)	2.131
RAPC75	21.365 (σ = 1.634)	1.775 (σ = 0.111)	1.736 (σ = 0.129)	2.059 (σ = 0.129)	1.400
RAPC100	15.324 (σ = 1.985)	1.373 (σ = 0.121)	1.324 (σ = 0.125)	1.681 (σ = 0.134)	1.201

represents the overall standard deviation.