Concrete water permeable brick and preparation method thereof
A permeable brick and concrete technology, applied in the field of concrete permeable brick and its preparation, can solve the problems of poor water permeability of permeable bricks, faults of permeable bricks, low pressure, etc., and achieve high pressure, strong coagulation, and good water permeability Effect
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[0013] A concrete permeable brick of the present invention comprises a surface layer, a middle layer and a lower layer, and the surface layer is composed of the following components in parts by weight: cement: 38-42%; fine sand with particle size ≤ 0.5m: 55-57%; Pigment: 3-5%; the middle layer is composed of the following components in parts by weight: cement: 40-45%; coarse sand with a particle size of 0.5mm-3mm: 55-60%; the lower layer is composed of the following The components are composed by parts by weight: cement: 45-50%; stone powder with a particle size of 5mm-8mm: 40-45%; talcum powder 5-10%.
[0014] Further, the specific mass ratio of the preferred composition of the surface layer is: cement: 40%; fine sand with particle size ≤ 0.5m: 56%; pigment: 4%.
[0015] Preferably, the specific mass ratio of the composition of the middle layer is: cement: 40%; coarse sand with a particle size of 0.5mm-3mm: 60%.
[0016] The specific mass ratio of the preferred composition o...
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