High-strength permeable brick and preparation method thereof

Abstract

The invention discloses a high-strength permeable brick and a preparation method thereof. The high-strength permeable brick comprises the following raw materials (by weight): 60-80 parts of porous coarse aggregate, 30-40 parts of ceramsite, 20-30 parts of cement, 10-30 parts of calcined metakaolin powder, 10-20 parts of fly ash, 5-15 parts of coal gangue, 3-8 parts of coal ball micropowder, 2-8 parts of fiber, 1-5 parts of a pore-forming agent, 0.3-0.8 of a water reducing agent and 0.1-0.5 part of a sintering aid. The permeable brick of the invention has excellent water permeability and high strength; and the preparation method is simple, is easy to realize, and is suitable for large-scale production and application.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-strength permeable brick and a preparation method thereof. Background technique [0002] At present, cement, asphalt, marble and other non-permeable materials are mostly used in urban construction to pave the ground. These hardened pavements make it difficult to exchange heat and moisture between the ground surface and the air, and the ability to naturally adjust the temperature and humidity of the urban ground is very poor, and the surface absorbs heat. Difficulties, resulting in a large amount of waste heat in the urban space, and a large amount of reflection on the ground to radiate solar heat, which leads to the phenomenon that the nighttime temperature in the city is higher than that in the suburbs. Moreover, in rainy days, the hardened pavement will prevent rainwater from infiltrating directly into the ground, causing water to accumulate everywhere, affect...

AI Technical Summary

Problems solved by technology

Although the permeable brick solves the problems of water permeability and strength of the permeable brick, its preparation consumes a lot of energy, resulting in an increase in cost