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Table 4 Test results II

From: Roles of mortar volume in porosity, permeability and strength of pervious concrete

Mix no. Unsubmerged permeability coefficient (mm/s) Submerged permeability coefficient (mm/s) Cube strength (MPa)
Mean Std. deviation Mean Std. deviation Mean Std. deviation
15–0.25 12.57 0.32 16.85 0.66 10.2 0.43
15–0.30 12.25 0.33 16.55 0.66 12.4 0.39
15–0.35 12.19 0.19 16.32 0.33 12.7 0.59
15–0.40 12.05 0.24 16.24 0.41 12.5 0.14
20–0.25 10.77 0.59 12.21 0.39 12.5 0.37
20–0.30 9.74 0.23 11.50 0.32 17.1 0.43
20–0.35 9.34 0.09 11.32 0.22 21.0 0.50
20–0.40 7.67 0.21 10.21 0.17 20.2 0.66
25–0.25 7.85 0.15 9.45 0.23 19.8 0.73
25–0.30 4.55 0.33 5.38 0.20 25.7 0.98
25–0.35 3.66 0.15 5.21 0.16 26.9 0.75
25–0.40 1.86 0.08 2.72 0.14 23.9 0.60
30–0.25 1.52 0.07 1.88 0.10 25.9 0.69
30–0.30 1.02 0.02 1.62 0.06 31.5 0.73
30–0.35 0.79 0.03 1.23 0.04 39.1 0.70
30–0.40 0.41 0.02 0.47 0.03 37.1 0.75
35–0.25 0.51 0.02 0.79 0.06 38.4 1.08
35–0.30 0.49 0.02 0.75 0.03 46.2 0.64
35–0.35 0.48 0.02 0.70 0.02 50.8 0.45
35–0.40 0.00 0.00 0.00 0.00 47.8 0.91
40–0.25 0.00 0.00 0.00 0.00 51.8 1.24
40–0.30 0.00 0.00 0.00 0.00 59.2 1.44
40–0.35 0.00 0.00 0.00 0.00 71.9 1.44
40–0.40 0.00 0.00 0.00 0.00 64.5 0.92