Gypsum-based thermal insulation mortar and preparation method thereof

Abstract

The invention belongs to the field of building materials, and particularly discloses gypsum-based thermal insulation mortar and a preparation method thereof. The gypsum-based thermal insulation mortar per cubic meter is prepared from the following raw materials: 60-90 kg of hydrophobic modified expanded perlite, 150-350 kg of gypsum-steel slag composite gel, 1.5-5 kg of a water reducing agent, 0.5-5 kg of a retarder, 0.5-6 kg of a waterproof agent, 1-5 kg of a thickening agent and 130-200 kg of water. The prepared gypsum-based thermal insulation mortar is large in size and light in weight, the phenomenon that materials are separated from a wall panel due to shrinkage after being dried can be avoided, what is guaranteed is that a wall is tightly attached to the wall panel, and the comprehensive bearing capacity of the wall is improved; meanwhile, the gypsum-based thermal insulation mortar has good volume stability, thermal insulation performance and water resistance, and can replace thermal insulation mortar to be used for building thermal insulation.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a gypsum-based thermal insulation slurry and a preparation method thereof. Background technique [0002] In recent years, with the development of economy, my country's emphasis on building energy conservation has gradually increased. In my country, building energy consumption accounts for about 28% of the world's energy consumption. Together with the production of building materials and building construction processes, energy consumption accounts for about 50% of the total social energy consumption. Among the building energy consumption, heating energy consumption accounts for the total 70% of energy consumption. In order to achieve building energy conservation and consumption reduction, the current strategy adopted in my country is to treat the building maintenance structure to reduce the heat transfer coefficient of walls and roofs. The specific approach is to add thermal insu...

AI Technical Summary

Problems solved by technology

Compared with organic thermal insulation materials, traditional inorganic thermal insulation materials have the advantages of good compressive strength and flexural strength, excellent fire resistance and high durability. With the increase of the market share of inorganic thermal insulation materials, the disadvantages of traditional inorganic thermal insulation materials are also Highlighted, such as the use of a large amount of mortar, poor thermal insulation, complicated construction steps, and limited application range, etc.

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