Glass micropowder doped foamed concrete slab material

Abstract

The invention discloses a glass micropowder doped foamed concrete slab material and belongs to the field of concrete. The glass micropowder doped foamed concrete slab material can be obtained through mixing silicate cement and fly ash, adding pretreated tempered glass powder and river sand aggregates into the mixture so as to obtain concrete base stock slurry, then, adding auxiliaries such as hydroxymethyl cellulose into the concrete base stock slurry, carrying out mixing, and then, carrying out molding by using molds. According to the glass micropowder doped foamed concrete slab material, waste tempered glass micropowder is doped into concrete and can be effectively filled in gaps between cement grains and gel products due to a spherical surface morphology and a very large specific surface area, thus, interfaces of set cement are dense, the porosity of the concrete is greatly lowered, and the chloride ion diffusion resistance and durability of the concrete can be greatly improved; and two kinds of solid wastes, i.e., waste glass and waste concrete are comprehensively utilized, so that the cyclic utilization of municipal garbage and waste concrete resources is facilitated.

Description

[0001] This application is a divisional application with an application date of December 3, 2015 and an application number of 2015108771897. The title of the invention is a method for preparing a foam concrete plate doped with glass micropowder. technical field [0002] The invention discloses a method for preparing a foam concrete plate doped with glass micropowder, which belongs to the field of concrete. Background technique [0003] Glass is widely used in our daily life and in all walks of life. At the same time, the amount of waste glass is increasing. According to the estimate of the United Nations, 7% of the global solid waste is waste glass. The waste glass produced in my country every year is 10.4 million tons. Accounting for 5% of the total solid waste, only 13% to 15% of waste glass in my country is recycled, and most of them are landfilled as garbage, which also causes pollution of the ecological environment and waste of resources and energy. At the same time, the...

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention: Aiming at the current waste glass coarse aggregate doped in concrete, because it has a smooth structure on both sides, it has poor adhesion with the aggregate, resulting in the interior of the concrete being not dense, and chloride ions are easy to penetrate, causing the steel bars in the concrete to corrode To solve the problem, a preparation method of foamed concrete board doped with glass micropowder is provided. The invention mixes Portland cement and fly ash, and adds pretreated tempered glass powder and river sand aggregate to obtain concrete base material. mud, add hydroxymethyl cellulose and other additives to mix, and mold it in an abrasive tool to get a foam concrete plate doped with glass micropowder. This invention uses waste tempered glass micropowder to dope concrete. With a large specific surface area, it can effectively fill the gaps between cement particles and gel products, make the cement stone and the interface dense, greatly reduce the porosity of concrete, and improve the chloride ion diffusion resistance and durability of concrete Greatly improved, and the comprehensive utilization of waste glass and waste concrete two solid wastes is conducive to the recycling of urban waste and waste concrete resources