Composite building insulation slurry

Abstract

Compound insulating mortar of buildings consists of the following parts of materials by weight: a cementing agent which consists of 140.0-160.0 parts of 42.5# Portland cement, 2.0-6.0 parts of emulsion powder and 0.5 part of methyl cellulose; an aggregate which consists of 70-90 parts of hydrophobic perlite, 15-30 parts of vitrified micro bubbles and 12-25 parts of polystyrene foam powder; fiber which consists of 0.8-1.2 parts of plant fiber and 0.5 part of polypropylene fiber; and an admixture which consists of 10-20 parts of fly ash, 7.5-17.5 parts of silicon powder and 0.5 part of clay. The materials are weighed and evenly mixed, and added with a proper amount of water and mixed to obtain the mortar. The compound insulating mortar has the advantages of reasonable ingredient gradation, convenient construction, and adhesive strength, insulating property, impact resistance toughness and fireproof grade far beyond the national standard; and the polystyrene foam powder is obtained by recovering and recycling waste materials, which is beneficial for environmental protection, energy saving, high value and low cost.

Description

technical field [0001] The invention relates to the field of construction slurry, in particular to a composite building thermal insulation slurry. Background technique [0002] With the in-depth development of building energy-saving work, external wall insulation technology is widely implemented in new construction and old building renovation projects. To create an energy-saving project, the key to truly realizing energy saving is to choose high-quality thermal insulation slurry. [0003] At present, my country implements building energy-saving projects, external wall insulation, and board products such as EPS and XPS are used in cold northern regions; projects that use polymer mortar insulation products such as rubber powder polystyrene particles, expanded perlite, and vitrified microbeads are comparatively small. There are many, but in a short period of time (1-3 years) in the example projects of using the above board and pulp products, it is found that cracking, hollowing...

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Problems solved by technology

[0003] At present, my country implements building energy-saving projects, external wall insulation, and board products such as EPS and XPS are used in cold northern regions; projects that use polymer mortar insulation products such as rubber powder polystyrene particles, expanded perlite, and vitrified microbeads are comparatively small. There are many, but in a short period of time (1-3 years) in the example projects of using the above board and pulp products, it is found that cracking, hollowing, deformation, and falling off occur to varying degrees, and there are serious quality problems, especially the above pulp It is difficult for the thermal conductivity, bonding strength and fire protection level of such products to meet the national standards

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