Construction waste recycled aggregate pervious concrete and preparation method thereof

Abstract

The invention relates to building waste recycled aggregate pervious concrete and a preparation method thereof. The concrete comprises an anti-blocking pervious concrete layer, an adhesive layer and an anti-cracking pervious concrete layer, the adhesive layer is adhered between the anti-blocking pervious concrete layer and the anti-cracking pervious concrete layer; a geogrid and basalt fibers are arranged in the anti-crack pervious concrete layer; the method comprises the steps of preparation of the anti-crack water-permeable concrete layer, preparation of the anti-blocking water-permeable concrete layer and combination of the anti-blocking water-permeable concrete layer and the anti-crack water-permeable concrete layer. Construction is easy and convenient, cast-in-place can be carried out, and pervious concrete members can be prefabricated.

Description

technical field [0001] The invention relates to a construction waste recycled aggregate permeable concrete and a preparation method. Background technique [0002] With the development of urbanization, new buildings and old buildings are demolished and reconstructed, resulting in a large amount of construction waste mainly composed of waste concrete, waste brick walls, and waste mortar. Converting construction waste into recycled materials through resource disposal and applying it to urban engineering construction not only solves the development dilemma of construction waste "garbage besieged", but also provides a large number of high-quality building materials for urban construction. [0003] At present, the main pavement materials in modern cities are asphalt concrete and cement concrete, which makes it difficult for the accumulated rainwater to infiltrate during heavy rains, causing waterlogging in many cities, which greatly affects people's production and life. Recycled ...

AI Technical Summary

Problems solved by technology

[0004] The porous structure of recycled aggregate permeable concrete makes it low in strength while ensuring water permeability, especially the insufficient tensile strength. At present, it is only used in light load roads, gardens and square floors, etc.

In addition, the water permeability of recycled aggregate permeable concrete materials gradually deteriorates with the increase of service life during the application process. Solid particles in rainwater are easy to deposit in the pores of permeable concrete during the infiltration process, resulting in poor penetration effect and affecting The service life of permeable concrete

The low strength, poor durability and easy clogging of pervious concrete have become the bottleneck of its promotion and use

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