Preparation and repair method of permeable concrete

Abstract

The invention discloses a preparation and maintenance method of pervious concrete. According to the method, a high-performance concrete material serves as a carrier (according to the ratio, by weight, 25-40 parts of cement, 5-15 parts of silicon powder, 5-20 parts of coal ash, 20-50 parts of aggregate, 0-2 parts of mineral powder, 1-2 parts of a water reducing agent, 0-2 parts of fiber and 7-10 parts of water are adopted), multiple physical hole forming methods including hole-forming member embedding, die extruding hole forming and die extruding hole forming are adopted to construct a through hole opening, the permeable function is achieved, and with high-pressure water or gas as a block clearing medium, a block removing path in the reverse direction (from bottom to top) of a blocking path is a block removing mechanism. The preparation and maintenance method of pervious concrete has the advantages of being simple in principle, easy to operate and controllable in process, and provides an effective method for overcoming the technological bottleneck of low pervious concrete strength, easy loosening, easy blocking and difficult maintaining.

Description

technical field [0001] The invention relates to a method for preparing and maintaining permeable concrete, in particular to a method for preparing and maintaining permeable concrete with good water permeability, high strength, good durability, simple maintenance and good maintenance effect, and belongs to the technical field of concrete. Background technique [0002] Permeable concrete is a kind of porous lightweight concrete made by mixing aggregate, cement and water. Compared with traditional concrete, it has significant advantages in driving and ecological environment. In terms of driving safety and comfort, it has the characteristics of good anti-slip, waterproof fog, anti-glare and noise reduction, which can greatly improve the safety and comfort of driving; from the perspective of ecological and environmental benefits, ① it is a It is a very effective method of collecting rainwater or making it seep back into the ground, which is conducive to maintaining the ecological...

AI Technical Summary

Problems solved by technology

However, the use of organic cementing materials such as resins also has the problems of high cost and easy aging

In summary, the pervious concrete prepared by the current method still has problems such as low strength, easy loosening, easy clogging, and difficult maintenance, which greatly reduces the service quality, service life and application range of pervious concrete.

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