Cement-based water permeable brick with wear resistance enhanced by EVA resin and steel slag micropowder

Abstract

The invention discloses a cement-based water permeable brick with wear resistance enhanced by EVA resin and steel slag micropowder. The cement-based water permeable brick is prepared form the following raw materials in parts by weight: 40-43 parts of granite scrap, 30-32 parts of waste concrete, 20-22 parts of 42.5-level ordinary Portland cement, 2-2.5 parts of polyester-cotton fabric scrap, 0.1-0.12 part of polyepichlorohydrin dimethylamine, 0.3-0.4 part of early strength polycarboxylate water reducer, an appropriate amount of water, 3-4 parts of EVA resin emulsion, 6-7 parts of steel slag micropowder, 3-4 parts of silica fume and 2-3 parts of silica sol. The cement-based water permeable brick disclosed by the invention has excellent water permeability; with a large number of ventilation pores in the brick body, the surface water can quickly permeate to underground, and the adjustment of surface humidity is promoted; the cement-based water permeable brick is firm and wear-resistant and has high compressive strength and is suitable for park roads, stadiums and the like; and moreover, the raw materials are conveniently available, and the technology facilitates batch production.

Description

Technical field [0001] The invention relates to the technical field of water-permeable bricks, in particular to a cement-based water-permeable brick enhanced by EVA resin and steel slag powder for abrasion resistance. Background technique [0002] In recent years, during the rainy season, the phenomenon of "watching the sea" frequently occurs in major cities. Permeable ground has attracted more and more researchers' attention due to its advantages such as alleviating the pressure of urban drainage system, replenishing groundwater resources, improving the living conditions of urban surface plants and soil microorganisms, making underground water easy to evaporate and eliminating the urban heat island effect. Water-permeable pavement helps to circulate air and moisture, eliminate the heat island effect, absorb sound and reduce noise. Water-permeable pavement bricks are the main components of urban water-permeable pavements. There are mainly three types of cement-based permeable co...

AI Technical Summary

Problems solved by technology

[0003] In the article "Research on Optimizing the Production of Permeable Bricks Using Waste Concrete", waste concrete was used to replace natural aggregates, and the orthogonal design test method was used to analyze aggregate particle size, bone-to-cement ratio, water-cement ratio, and water reducing agent, silica fume and waste concrete. The influence of different dosages on the strength and water permeability coefficient of permeable bricks was obtained, and the optimal mix ratio was obtained. The strength of permeable bricks made with the strengthening of recycled aggregates and the improvement of curing methods was improved, which met the laying requirements and realized the waste Utilization, energy saving and emission reduction, but due to the limited increase in strength and the fluidity of concrete, slurry sinking is prone to occur when the brick body is formed, blocking the seepage channel affects water permeability, and the cement layer is due to slurry, the joints at the joints The cement layer will become thinner, which is not conducive to the development of brick strength