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Journal of Engineering and Applied Science

Table 4 Regression line between degree of compaction and permeability

From: Effect of aggregate gradation on the mechanical strengths and permeability properties of porous concrete

Size of aggregate

Mathematical model

4.75 mm to 10 mm

P = 0.744–0.01647N, R2 = 0.939

10 mm to 12.5 mm

P = 0.648–0.0123N, R2 = 0.967

12.5 mm to 16 mm

P = 0.627–0.0156N, R2 = 0.942

  1. Note: P permeability in mm/sec, N number of blows
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