Recycled aggregate water-permeable pavement structure and paving method

Abstract

The invention relates to a recycled aggregate water-permeable pavement structure and a paving method. The recycled aggregate water-permeable pavement structure comprises geotextile fabric, a water-permeable base layer, a water-permeable lower layer, a water-permeable upper layer and a color layer which are sequentially arranged on a foundation from bottom to top, wherein the thickness ratio of thewater-permeable base layer, the water-permeable lower layer and the water-permeable upper layer is 6-10:2-3:1-2; the water-permeable base layer is made of 0-10 parts by weight of cement, 0-3 parts byweight of water-permeable concrete binder, 87-100 parts by weight of 5-31.5 mm continuous grain size grading recycled brick-concrete aggregate, and 10-15 parts by weight of water in a rolling manner;the recycled brick-concrete aggregate of the water-permeable base layer is the 5-31.5 mm continuous grain size grading recycled aggregate; a crushing value of the recycled brick-concrete aggregate isnot more than 30%; the proportion of aggregate with grain size grading less than 5 mm in the recycled brick-concrete aggregate is not more than 10%; and the proportion of impurities is not more than0.02%. The recycled aggregate water-permeable pavement structure has better repeatability and reproducibility, and can increase the porosity and the rainwater permeability of the ground. Rainwater infiltrating into soil can not only conserve groundwater but also reduce the rain and flood load in urban areas so as to significantly improve the urban ecological environment.

Description

technical field [0001] The invention belongs to the field of building environmental protection, in particular to a recycled aggregate permeable pavement structure and a pavement method. Background technique [0002] With the continuous acceleration of urbanization in my country, the production of construction waste continues to increase, accounting for 30% to 40% of urban waste, causing a serious ecological crisis. For a long time, due to the lack of a unified and perfect construction waste management method and the lack of scientific, effective and economically feasible disposal technologies, most of the construction waste has been transported to the suburbs for open storage or simple landfill without any treatment. The stock of construction waste has reached 200 More than 100 million tons. my country's construction industry is in a period of rapid development, and the promotion of resource utilization of construction waste is seriously lagging behind. The current utilizat...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a recycled aggregate permeable pavement structure and pavement method, to solve the technical problem of poor water retention performance of natural aggregate in the prior art; and to solve the problem of high engineering cost in the prior art

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