A kind of sponge double waste permeable concrete and its preparation method

Abstract

The invention discloses novel spongy body double-waste pervious concrete comprising cement, sand, garden waste, regenerative stone and a brightening agent in a weight ratio of 100:(100-140):(200-290):(5-35):(0.15-1.15). The invention also discloses a preparation method of the novel spongy body double-waste pervious concrete. The preparation method comprises the following steps: (1) drying and dewatering the garden waste to obtain a product 1, crushing the product 1 into particles with the particle size of 0.1-3cm to obtain a product 2, spraying the brightening agent on the product 2, and stirring to obtain a product 3; (2) stirring to mix the cement, sand, regenerative stone and water to obtain a product 4; and (3) before concrete initial setting of the product 4, adding the product 3, and stirring for mixing to obtain the concrete. The novel spongy body double-waste pervious concrete has relatively good water absorptivity, water permeability, water storage property and air permeability and relatively high strength, thereby realizing optimized allocation of renewable resources of the garden waste and construction waste during urban construction.

Description

technical field [0001] The invention relates to the field of building materials, and relates to concrete and a preparation method thereof, in particular to a sponge double-waste permeable concrete and a preparation method thereof. Background technique [0002] With the continuous prosperity and development of the world economy, the earth has gradually changed its original appearance. Urban construction is changing with each passing day and developing rapidly. The construction of public buildings, houses, and roads hardens the surface environment, which almost completely changes the ecological environment of the construction site. The atmospheric evaporation cycle is affected, resulting in lower air humidity and higher temperature in the urban area, forming a "heat island" effect". This "heat island effect" makes the city hotter and hotter in summer, and the dust in the atmosphere increases, making people's life more and more uncomfortable, threatening human health, and the ...

AI Technical Summary

Problems solved by technology

[0003] 1. Sewage is directly discharged into urban rivers and lakes, causing a large amount of clean surface water to become sewage and lose its use value;

[0004] 2. The natural environment of urban surface water has been destroyed, the area of ​​wetlands has decreased, rivers have hardened, etc., resulting in changes in water ecology, and water loses its self-purification function;

[0006] 4. Excessive exploitation of groundwater by industry and residential groups leads to a drop in groundwater levels and ground subsidence, threatening urban buildings;

[0007] 5. The hardening of the road surface prevents rainwater from penetrating into the ground, and the accumulation of water on the ground affects urban sanitation and traffic, or after a heavy rain, the amount of water flowing into the sewer increases greatly, which adds a huge processing burden to urban drainage pipes and sewage treatment plants

However, the utilization of these construction wastes is still very limited at present. If the sources of construction wastes cannot be found for reuse, it will not only cause waste of resources, but also affect the ecological environment.