Inorganic heat-insulating dry powder mortar

Abstract

The invention relates to inorganic heat-insulating dry powder mortar, which comprises the following components in percentage by weight: 30 to 95 percent of inorganic gelled material, 5 to 70 percent of lightweight aggregate and 0 to 10 percent of additive, wherein the inorganic gelled material comprises 75 to 90 weight percent of desulfuration gypsum and 10 to 25 weight percent of cement; the lightweight aggregate is hydrophobic expanded perlite or vitrified micro bubbles or a mixture of the hydrophobic expanded perlite and the vitrified micro bubbles; and the additive comprises a composite retarder, a water retention agent, a thickening agent, a cementing compound and a reinforcing agent. The inorganic heat-insulating dry powder mortar can replace cement mortar and mixed mortar, is applied to non-humid wall surfaces such as the inner side of an outer wall, a separating wall, an inner partition wall, a ceiling and the like, has the characteristics of heat preservation, heat insulation, crack resistance, fire prevention, ageing resistance, environmental protection, biological bite corrosion prevention and the like, and can improve the heat-preserving and heat-insulating performanceof wall bodies.

Description

technical field [0001] The invention relates to a building material, in particular to an inorganic thermal insulation dry powder mortar used for interior wall plastering. Background technique [0002] Energy is the basic condition for the survival and development of human beings, and saving energy is the basic national policy of our country. Building energy consumption has accounted for 30% of the total social energy consumption in our country. Therefore, improving energy efficiency in the process of building use is of great significance to my country's energy conservation and emission reduction work! [0003] Energy-saving materials for walls of building enclosure structures can be divided into organic materials, such as polystyrene board, rubber powder particles, polyurethane, etc., and inorganic materials, such as aerated concrete, vitrified microbeads, rock wool, etc. Two categories. [0004] The current wall energy-saving products in my country are mainly based on org...

AI Technical Summary

Problems solved by technology

However, a large number of vitrified microbeads are used as a single lightweight aggregate. Due to the imbalance between supply and demand, the price rise will inevitably affect the development of the inorganic thermal insulation mortar industry.