Spray building type gypsum double-layer thermal insulation composite outer wall and preparation method

Abstract

The invention relates to a spray building type gypsum double-layer thermal insulation composite outer wall and a preparation method. The spray building type gypsum double-layer thermal insulation composite outer wall can be arranged on any building between a wall upper-end beam and a wall lower-end beam, the high requirements of thermal insulation and energy saving of severe cold areas and cold areas can be met, and meanwhile, the generation of thermal bridge is avoided; if the building fireproof requirement is met, an inorganic fireproof material is adopted in outer side thermal insulation, and an organic material is adopted in middle thermal insulation; and the two materials are organically combined, and the unification of energy-efficient and fireproofing is achieved. The simplest construction method of a fabricated building can be completed, that is a main structure is made of a concrete structure and a steel structure, and an enveloping part comprising an internal parting wall, anouter wall, outer thermal insulation and other work is completed by spray building type gypsum composite materials. Technological byproduct gypsum can be greatly consumed, waste is turned into wealth, and green hills and clear waters are protected.

Description

Technical field: [0001] The invention relates to an energy-saving and environment-friendly wall structure in the technical field of construction engineering, in particular to a spray-built gypsum double-layer thermal insulation composite exterior wall and a preparation method thereof. Background technique: [0002] The annual production of industrial by-product gypsum in my country is about 184 million tons, and the cumulative stockpiles exceed 500 million tons. However, the comprehensive utilization rate of the annual new generation is only 48.1%, and the unused part can only be stored in the open air. A large amount of gypsum waste slag is firstly occupied by a large amount of land; secondly, the investment in the slag yard is large and the operating cost is high, and the volume of the slag dump and the anti-seepage treatment of the foundation are strictly required; thirdly, precious sulfur resources are wasted; fourthly, the acid and Other harmful substances are likely t...

AI Technical Summary

Problems solved by technology

High-efficiency thermal insulation materials have low strength, which is inconvenient to use on the inner side of the outer wall, and is prone to cracking and falling off when used on the outer side of the outer wall. Moreover, the fire protection rating is insufficient, and it is easy to catch fire, posing a threat to the lives of residents.

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