Phase-change thermal insulation putty

Abstract

The invention discloses a phase-change thermal insulation putty consisting of the following substances in percentage by weight: 30-40% of activated and regenerated concrete fine powder, 5-10% of ground limestone, 3-5% of talcum powder, 15-25% of quartz sand, 1-3% of alkaline mud, 3-5% of washing slurry, 3-5% of silicate cement clinker, 1-3% of aluminum slag, 8-12% of a phase-change material, 2-5% of expanded perlite powder and 0.5-1.5% of an additive. The phase-change thermal insulation putty disclosed by the invention has the characteristics of remitting the environmental pressure from urban construction and alkaline production enterprises and the pressure of the resource shortage of building material enterprises, realizing energy conservation and emission reduction of buildings, reducing the waste burden of enterprises, increasing the income and improving the ecological environment.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to a phase-change thermal insulation putty. Background technique [0002] In recent years, due to the wide application of external wall thermal insulation technology and the selectivity of external wall thermal insulation system finishes to coatings, architectural coatings have encountered good new opportunities for development and achieved faster development. At the same time, the application of functional exterior wall coatings has increased significantly, and the application of solvent-based architectural coatings with high energy consumption and high pollution has dropped sharply. In addition, large-scale development and transformation of cities have produced a large amount of waste concrete, and recycled concrete powder is made of waste concrete. It is a by-product in the process of producing recycled coarse aggregate; alkali slag is the solid waste produced in ...

AI Technical Summary

Problems solved by technology

At present, the application research of recycled concrete powder is not mature. A large amount of waste concrete, aluminum slag and alkali slag cannot be properly treated and utilized for a long time, which has caused a great impact on the surrounding environment. In addition, the modern demand for building material resources Increasing day by day, leading to the long-term pressure of resource shortage of building material enterprises cannot be effectively resolved, and the burden of waste discharge of enterprises cannot be alleviated for a long time