Sandwich composite wall body prepared by utilizing industrial wastes and preparation method

Abstract

The invention relates to a method for preparing a sandwich composite wall body by utilizing industrial wastes. The method comprises the following steps: (1) crushing foamed plastic product wastes intofoamed plastic product waste grains with the grain diameter less than 3mm; (2) building an external sandwich wall and an internal sandwich wall and pre-embedding a connection pull rod; (3) uniformlymixing and stirring the foamed plastic product waste grains obtained by step (1), desulfurized building gypsum, chopped fibers, polyvinyl alcohol, a concrete waterproof agent, sodium dodecyl sulfate and water according to a ratio; injecting the mixture into a cavity between the external sandwich wall and the internal sandwich wall and compacting by utilizing a vibrator.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to a sandwich composite wall prepared from industrial waste and a preparation method thereof. Background technique [0002] Construction waste and desulfurized construction gypsum are by-products of urbanization and industrialization. With the continuous acceleration of urbanization and industrialization in our country, the production of construction waste and desulfurized construction gypsum in our country has increased sharply. Stacking not only occupies land resources but also causes environmental pollution. The treatment and utilization of construction waste and desulfurization construction gypsum has become an urgent need for us to solve problem. [0003] At present, some areas of our country have implemented the standard of 75% building energy saving. The main energy saving method adopted in the construction field is external wall insulation, that is, pasting vari...

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

[0005] Various types of plastic foam products widely exist in our lives. During the production and use, a large amount of waste foam plastics will be generated. Most of these waste foam plastics are discarded and piled up for disposal, which not only pollutes the environment, but also poses safety hazards such as inducing fires.

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