Green high-performance concrete water permeable brick and preparation method thereof

Abstract

The invention relates to a green high-performance concrete water permeable brick and a preparation method thereof. The green high-performance concrete water permeable brick is characterized by comprising raw materials in parts by weight as follows: 40-80 parts of aggregate, 20-30 parts of sulphoaluminate cement, 2-6 parts of submerged arc furnace granulated slag micropowder, 5-15 parts of a gelling agent, 0.1-2 parts of a superplasticizer and 0.1-0.5 parts of a dispersing agent, wherein the aggregate comprises manufactured granite sand and river sand in a weight ratio of the granite manufactured sand to the river sand being (2-3):1, the particle size of the granite manufactured sand is 1.0-3 mm, and the particle size of the river sand is 0.5-1.0 mm. The green high-performance concrete water permeable brick is low in cost and high in strength, has a dense surface, facilitates convenient, energy-saving and environment-friendly construction and has the functions of water permeation and storage, humidity release and humidity regulation, can relieve pressure of too much rainwater to urban road surfaces and reduce the urban land surface temperature when being applied to the road surfaces, and improves the living quality of people in cities.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a road for sidewalks, pedestrian streets, bicycle lanes, light motor vehicle roads, suburban roads, picnic walking roads and roads in parks; open-air parking lots, around houses, courtyards and streets Green high-performance concrete permeable bricks in fields such as grounds and public squares and a preparation method thereof. Background technique [0002] Water resources have become a determinant of a country's sustainable development. The high-density population and dense buildings in modern cities have caused urban hardening, which is called "artificial desert" in ecology. With the acceleration of urbanization, whether it is sidewalks, streets, squares, or courtyards in residential quarters, most roads are paved with closed structures such as granite, cement, and glazed bricks, but the urban water permeability is weakening. The urban surface is gradual...

AI Technical Summary

Problems solved by technology

Although ceramic permeable bricks have the advantages of high hardness, high strength, rich colors and standardized sizes, the production process is complex, resource consumption is large, and production costs are high; resin-bonded permeable bricks have poor durability due to resin aging; cement-based permeable bricks Bricks are cheap to produce, but have low compressive strength and poor wear resistance

Moreover, for ordinary permeable bricks, due to their high porosity, their salt corrosion resistance is poor, resulting in a large difference in durability from ordinary clay bricks, requiring more frequent maintenance and replacement operations

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