Inorganic thermal insulation mortar toughened by doping wheat straw fibers and application method thereof

Abstract

The invention belongs to the technical field of construction materials, and specifically relates to an inorganic thermal insulation mortar toughened by doping wheat straw fibers and an application method thereof. The inorganic thermal insulation mortar is composed of silicate cement, calcium hydroxide, high calcium fly ash, aluminate cement, wheat straw fiber, polyacrylonitrile fiber, vitrified beads, short-cut wheat straw, butyl benzene emulsion, an air-entrainer, starch ether, and water. The problems of common vitrified bead thermal insulation mortar such as high cost, easy shrinkage and cracking, and the like are solved. The provided inorganic thermal insulation mortar has the advantages of good workability and mechanical properties, small shrinkage, no cracking, excellent thermal insulation performance and fireproof property, safety, durability, and flameproof property, and the fireproof property can reach the A grade. Agricultural wastes such as wheat straw and other solid wastes are fully utilized, the production cost is low, the construction is simple and quick, good economic benefits and social benefits can be generated, and the mortar is suitable for thermal insulation and energy saving engineering of inner / outer walls.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an inorganic thermal insulation mortar mixed with wheat straw fiber for toughening and a use method thereof. Background technique [0002] With the development of building energy conservation in China, building wall insulation systems have been widely used in building wall insulation and energy-saving projects. Under the vigorous promotion of the national "Twelfth Five-Year Plan" building energy conservation project, building energy conservation has been promoted from urban buildings to rural buildings, and urban and rural building energy conservation has developed rapidly. Energy saving in urban and rural buildings not only requires thermal insulation materials to have excellent thermal insulation effect, but also needs to have higher strength, flexibility and fire safety. Insulation mortar is a kind of powder insulation material obtained by mixing lightw...

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Problems solved by technology

Vitrified microbead thermal insulation mortar has good fire resistance, A-class fireproof and non-combustible, but it often causes shrinkage cracking problems due to the reduction of thermal insulation performance and large shrinkage of vitrified microbeads.

[0004] my country is a large agricultural country, which produces a large amount of crop waste every year. Among them, the annual output of wheat straw exceeds 200 million tons. to be applied

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