Designing of high performance permeable concrete mixture proportion

The influence of the gradation of coarse aggregate, mass ratio of coarse aggregate to cement and mass ratio of water to cement on the permeation coefficient and compressive strength of permeable concrete by using a orthogonal design method were investigated. The results showed that the mass ratio of coarse aggregate to cement was the key factor affecting permeation coefficient and compressive strength of permeable concrete. The more mass ratio of coarse aggregate to cement is, the thinner surrounding thickness of cement slurry, the more permeability coefficient and the less compressive strength is. And the optimal mixture proportion of high performance permeable concrete was obtained by orthogonal design method.