Stabilizer for preventing granule floating in stirring process of glass bead heat-preservation concrete

Abstract

The invention relates to a stabilizer for preventing granule floating in a stirring process of glass bead heat-preservation concrete. The stabilizer comprises the following raw materials in parts by weight: 2-5 parts of a thickening agent, 25-55 parts of a water reduction agent, 2-3 parts of an air entraining agent, 300-400 parts of nano kaolin and 350-400 parts of coal ash. Due to scientific andreasonable matching of the functional components, the granule stabilizer provided by the invention is capable of ensuring flowability and peaceability of the glass bead heat-preservation concrete, andmeanwhile is capable improving cohesiveness of the concrete, improving the floating resistance of granules and cement slurry, maintaining uniform distribution of the granules in the cement slurry, and reducing a layering degree. By adopting the stabilizer, the difficulties of low strength, poor thermal insulation, non-homogeneity of materials, and the like caused by granule non-uniformity in thestirring process of the glass bead heat-preservation concrete are perfectly solved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and specifically relates to a stabilizer that solves the problem of particle floating during the stirring process of vitrified microbead thermal insulation concrete. The problem of uneven internal distribution of particles on the coagulation surface caused by easy floating. Background technique [0002] As a new type of inorganic thermal insulation material, vitrified microbead thermal insulation concrete has the advantages of light weight, non-combustibility, non-toxicity, aging resistance and good thermal insulation performance, etc. It has broad application prospects in the thermal insulation system of building interior and exterior walls. [0003] However, due to the extremely small density of vitrified beads, it is only 80kg / m 3 ~130kg / m 3 , which is significantly lower than the density of cement paste. During the mixing and molding process of vitrified microbead thermal insulat...

AI Technical Summary

Problems solved by technology

[0003] However, due to the extremely small density of vitrified beads, it is only 80kg / m 3 ~130kg / m 3 , which is significantly lower than the density of cement paste. During the mixing and molding process of vitrified microbead thermal insulation concrete, it is very easy to produce the phenomenon of vitrified microbead particles floating up.

The floating of vitrified microbead particles will not only affect the construction performance of concrete, but also reduce the strength and durability of concrete. The floating and delamination of particles is one of the main problems in the popularization and application of vitrified microbead insulation concrete

[0004] To control the floating of vitrified microbead particles, the existing technology generally adopts the method of reducing water consumption and reducing the slump of concrete, but this method will cause the fluidity of concrete to deteriorate, which is not conducive to the development of molding and strength, and there is no perfect solution yet. Technical measures to solve the problem

Images