A kind of permeable asphalt concrete and preparation method thereof

Abstract

The invention discloses a water-permeable asphalt concrete and a preparation method thereof. The preparation method comprises the following steps: adding a water-reducing agent into water, stirring and mixing uniformly to obtain a water-reducing agent solution; mixing cement, modified asphalt, gravel, and mineral fiber Filler and silica fume are added to the concrete mixer and mixed evenly, then add the water reducer solution and continue to stir and mix evenly. The permeable asphalt concrete and the preparation method thereof of the present invention have good water permeability, and can also prevent freeze-thaw damage to the concrete caused by long-term accumulation of rainwater inside the permeable asphalt concrete, improve the freeze-thaw resistance of the permeable asphalt concrete, and can be used in While taking into account the strength and water permeability of ordinary permeable asphalt concrete, it can also improve the plastic deformation and impact resistance of permeable asphalt concrete. It is suitable for sidewalks and bicycle lanes, ground decoration in communities, garden landscape roads and city squares, beside swimming pools and stadiums .

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a permeable asphalt concrete and a preparation method thereof. Background technique [0002] Concrete is a brittle material with high compressive strength and relatively low tensile strength. With the development of modern building technology, higher demands are placed on cement concrete building materials. [0003] With the development of the economy and the acceleration of urban construction, the surface of modern cities is being gradually covered by reinforced concrete houses and impermeable concrete pavements. At present, the pavements of urban streets, sidewalks, bicycle lanes, parks, courtyards and public squares in China are mainly made of impermeable stone plates and concrete. Although the pavement technology of this kind of pavement is simple and the cost is low, it will bring many negative effects to the ecological environment of the city. First of all, this imperme...

AI Technical Summary

Problems solved by technology

Although the pavement technology of this kind of pavement is simple and low in cost, it will bring many negative effects to the ecological environment of the city.

First of all, this impermeable and airtight pavement significantly reduces the infiltration of rainwater into the ground, and the urban groundwater cannot be replenished, which damages the city's water balance, affects the growth of urban surface plants, and destroys the ecological balance of the urban surface; secondly, This kind of dense pavement can not be drained in time in rainy days, resulting in water accumulation on the road, which brings a lot of inconvenience to pedestrians and vehicles, and also increases the noise pollution of the city and forms the "heat island effect" of the city.

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