Permeability
A material's coefficient of permeability to water and water vapour. The permeability of concrete is directly related to its water-cement ratio; a low ratio (below 0.45) significantly improves watertightness.
A material's coefficient of permeability to water and water vapour. The permeability of concrete is directly related to its water-cement ratio; a low ratio (below 0.45) significantly improves watertightness.
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