Basalt composite fiber water permeable brick and preparation method thereof

Abstract

The invention discloses a preparation method of a basalt composite fiber water permeable brick. The method comprises the following steps of: uniformly mixing basalt ore, sepiolite powder and talcum powder, heating an obtained mixture until obtaining a melt, and performing centrifugal spinning to obtain cotton fibers; mixing the cotton fibers, konjac glucomannan and a sodium hydroxide solution, stirring an obtained mixture at 60-70 DEG C for 30-50 minutes, performing filtering and washing, and performing drying at 90-98 DEG C for 1-2 hours to obtain basalt composite fibers; uniformly mixing pre-ground cement clinker, the basalt composite fibers, coal mine waste residues, fly ash, desulfurized gypsum and an additive, and grinding an obtained mixture to obtain a cementing material; uniformlymixing aggregate, the cementing material, water, a water reducing agent and a surfactant, performing molding by using a grinding tool under the molding pressure of 18-20MPa, performing curing at the temperature of 20-25 DEG C for 28-30 days, and keeping the humidity at 80-88% in the curing process, thereby obtaining the basalt composite fiber water permeable brick.

Description

technical field [0001] The invention relates to the technical field of permeable bricks, in particular to a basalt composite fiber 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 the ground will also reflect and radiate a large amount of solar heat, resulting in the phenomenon that the nighttime temperature in the city is higher than that in the suburbs. In addition, in rainy days, the hardened pavement will prevent rainwater from directly infiltrating into the ground, causing water to accumulate every...

AI Technical Summary

Problems solved by technology

[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 the ground will also reflect and radiate a large amount of solar heat, resulting in the phenomenon that the nighttime temperature in the city is higher than that in the suburbs

In addition, in rainy days, the hardened pavement will prevent rainwater from directly infiltrating into the ground, causing water to accumulate everywhere, affecting the comfort and safety of the road. The healthy growth of vegetation and the difficulty in greening have aggravated the problem of drought and water shortage in the city; while the accumulated water pours into the sewer and then into the river, which increases the discharge burden of the urban drainage system and the river. On sunny days, the ground is extremely dry and dusty, making the environment comfortable greatly reduced