Formula and production technology of red brick-containing recycled aggregate permeable concrete

Abstract

The invention discloses a formula and a production technology of red brick-containing recycled aggregate permeable concrete. The permeable concrete prepared from red brick-containing recycled aggregates promotes the recycling of building wastes, is a novel environmentally-friendly material, promotes the sustainable development of the building industry, has great social, economic and environmentalcomprehensive benefits, saves a large amount of natural resources, and has significant economic and environmental benefits.

Description

technical field [0001] The invention relates to the technical field of permeable concrete, in particular to a formula of recycled aggregate permeable concrete containing red bricks and a production process thereof. Background technique [0002] In recent years, with the rapid development of the economy and the continuous acceleration of urbanization, the amount of construction waste generated by the demolition of a large number of waste buildings is increasing day by day, especially the construction waste generated by brick-concrete buildings containing red bricks, which is about the total amount of urban construction waste. One-third of the construction waste, but only less than 5% of the utilization rate of construction waste resources. [0003] Permeable concrete is a material formed by bonding coarse aggregates covered with a layer of thin slurry on the surface. It is a special concrete with high porosity and water permeability coefficient. The interconnected pore struct...

AI Technical Summary

Problems solved by technology

[0005] Chinese patent 201310152333.1 discloses a high water storage concrete to solve the problem that the concrete in the prior art does not have both the characteristics of water permeability and water storage

[0006] The above-mentioned patent simply proposes the use of red brick particles for the production of permeable concrete, and does not give the source of red brick particles and the technical index requirements for red brick particles, which is not practically practicable. Our unit recycles as construction waste and Recycling units have been in contact with construction waste all year round. After many tests by our technicians, it is found that the performance of red brick aggregates in concrete has a great relationship with the dust content in the surface of red bricks. Red brick aggregates The greater the amount of dust attached to the surface, the worse the solidification and bonding effect between the red brick aggregate, cement and natural stone, and it will affect the water storage, water permeability, air permeability and other properties of the concrete after molding, and at the same time reduce the moisturizing and self-maintenance function of the red brick , so the applicant thinks that it is necessary to carry out more careful preliminary treatment on the red brick aggregate before mixing, so as to ensure the performance of this type of permeable concrete

Images