Waste foam plastic sandwich decoration and insulation composite wall and preparation method thereof

Abstract

The invention relates to a preparation method of a waste foam plastic sandwich decoration and insulation composite wall. The method comprises the following steps that 1, waste foam plastic is crushed into waste foam plastic particles with the particle size small than 3 mm; 2, a bearing inner wall and a non-bearing outer wall with a decorative function are built up, and a connecting pull rod is embedded; 3, the waste foam plastic particles obtained in the step 1 and materials such as cement, chopped fiber, a styrene-acrylic emulsion, a concrete waterproofer, hydrogen peroxide and water are mixed and stirred to be uniform in proportion, after foaming is conducted, the mixture is injected into a cavity between the bearing inner wall and the non-bearing outer wall, and vibration is conducted through a vibrator.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to a waste foam plastic sandwich decorative and thermal insulation composite wall and a preparation method thereof. Background technique [0002] With the increase of total building energy consumption year by year, building energy conservation has been highly valued by the government. At present, some areas of our country will begin to implement the standard of 75% building energy efficiency. The main energy-saving method adopted in my country's construction field is external wall insulation, that is, pasting various insulation boards on the base wall and modifying the surface to achieve the effect of heat preservation and decoration, but this method has poor fire resistance and durability , not only there are problems with the service life of the external wall insulation board and the building, but also prone to engineering quality problems such as cracking and falling o...

AI Technical Summary

Problems solved by technology

However, the current sandwich wall is composed of inner and outer leaf walls and insulation panels in the middle. There is a cavity between the insulation panels and the inner and outer leaf walls. The insulation panels are not fixed firmly and are likely to cause external water seepage, affecting the wall The overall performance; in addition, the inner and outer leaf walls and the insulation layer are tied by tie mesh, which is inconvenient for construction operation

[0004] Foam plastic products widely exist in our daily life, and a large amount of foam plastic waste will be generated in the process of production and use. These discarded foam plastics are mostly discarded and piled up for disposal, which not only pollutes the environment, but also poses a fire hazard.

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