Special water-permeable concrete for water-permeable brick and water-permeable brick prepared from concrete

Abstract

The invention relates to special water-permeable concrete for a water-permeable brick and the water-permeable brick prepared from the concrete, and belongs to the field of concrete. The raw materials comprise cement, water, gravel, a filler, a defoaming agent and a cementing agent, and the cementing agent comprises the following raw materials: epoxy resin, poly (trimethylene carbonate), diacetone acrylamide and hydroxypropyl acrylate. The preparation method comprises the following steps: 1) uniformly mixing the gravel, the cementing agent and the defoaming agent, and then mixing and stirring the cement, the filler and the water; the invention discloses a water permeable brick and a preparation method thereof.The water permeable brick is prepared by the steps of 1, mixing a mixture with water, 2, spreading the mixture in a mold, and placing the mold in a pressing machine for vibration pressing processing to obtain a water permeable brick semi-finished product, and 3, placing the water permeable brick semi-finished product in a curing room for standing curing for 6-8 days, then removing the mold, and conducting humidification curing for 21-28 days to obtain the water permeable brick. The water permeable brick has high mechanical strength, high water permeability and good durability.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a special permeable concrete for permeable bricks and permeable bricks made of the concrete. Background technique [0002] Permeable brick is a kind of prefabricated brick commonly used in road paving projects. At present, most permeable bricks are sintered with clay. Sintered bricks have defects such as high energy consumption and unstable quality. Therefore, in recent years, concrete permeable bricks have gradually been applied and developed. . [0003] Concrete permeable bricks refer to prefabricated bricks made by casting permeable concrete. Permeable concrete is a kind of porous concrete made by mixing gravel, cement and water. Since permeable concrete does not contain fine sand, its surface is covered with gravel. With a thin layer of cement slurry, the crushed stones are bonded to each other to form a honeycomb structure with more pores inside, so the concrete permeable brick has ...

AI Technical Summary

Problems solved by technology

However, just because the crushed stones of concrete permeable bricks are only bonded by cement paste, their strength is poor, and the problems of brick cracking or loosening of crushed stones are prone to occur, so further improvement is needed

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