Steam pressurized concrete composite heat insulation building blocks and its production process

Abstract

The invention discloses an autoclaved aerated concrete composite heat preservation building block and a production method thereof. The building block external wall and the building block are made of the autoclaved aerated concrete, the hole formed by the building block external wall and the building block rib is filled with heat preservation and insulation fillers for a second time. The building block adopts the autoclaved aerated concrete as the raw material and the preset mould core structure. The mould core is extracted after the slurry is poured so as to form a hollow structure in the building block body in the molding process, the void ratio of the hollow structure reaches 30%-70%. The light heat preservation and insulation material is filled for the second time after autoclaved curing the hollow structure block body, which reduces the production volume weight, improves the heat preservation and insulation performance of the material and facilitates the construction. Based on the application requirement, the absolute dry volume weight is adjustable in a range of 300-600kg / m<3>, the heat transfer coefficient amounts to less than 0.5W / m<2>.K, the method has a remarkable effect of energy saving, the single wall body material reaches 65% of the national building energy saving requirement, the energy-saving effect is obvious. The building block is widely applicable to industrial and civil building wall bodies.

Description

technical field [0001] The invention belongs to the technical field of building wall materials, and in particular relates to an energy-saving heat preservation block and a production method thereof. Background technique [0002] According to data, my country's building energy consumption accounts for about 30% of the country's energy consumption at present, and building energy conservation has become an important task for my country's energy conservation and emission reduction. The "Design Standards for Energy Conservation of Public Buildings" implemented on July 1, 2005 stipulates that all new urban buildings should strictly implement the second-step building energy conservation mandatory standard with a building energy saving rate of 50%. Taking the lead in implementing the third-step energy-saving standard with an energy-saving rate of 65%, actively promoting new wall materials is an important part of promoting building energy conservation. [0003] As a new type of wall...

AI Technical Summary

Problems solved by technology

Ordinary concrete materials are used, the product has a high bulk density, and because of the natural maintenance method, the production and maintenance period is long, the drying shrinkage ratio is large, and the durability is poor, which affects the overall performance of the wall.

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