Waterproof and fireproof thermal insulation wall

Abstract

The invention discloses a waterproof and fireproof thermal insulation wall. The thermal insulation wall is prepared from raw materials as follows: 350-400 parts of magnesium oxide, 150-200 parts of magnesium chloride, 4-5 parts of phosphoric acid, 10-15 parts of an organosilicon waterproofing agent and 60-80 parts of expanded perlite. The thermal insulation wall has the advantages as follows: a magnesium oxychloride cement product is a product capable of being recycled and comprehensively utilized and is widely applied in the construction industry due to the characteristics of low price, highmechanical strength, good wear resistance, excellent flame retardation and the like, however, the magnesium-oxy-chloride cement product has the characteristics of poor water resistance, high probability of buckling deformation and the like. After the organosilicon waterproofing agent is added, MgCl2-6H2O in slurry reacts more sufficiently, damping of the product is reduced, besides, a reaction produced product forms hydrophobic capillary channels, external moisture cannot enter the capillary channels, and the water resistance of the magnesium-oxy-chloride cement product is greatly enhanced. Phosphoric acid can improve stability of magnesium oxychloride cement hydrate in water. The expanded perlite has good thermal insulation and flame retardance effects and a good thermal insulation effectdue to the characteristic of porosity.

Description

technical field [0001] The invention relates to the technical field of thermal insulation walls, more specifically, it relates to a waterproof and fireproof thermal insulation wall. Background technique [0002] Building thermal insulation is a measure to reduce the indoor heat of a building to be emitted to the outside. Measures are mainly taken from the building's external enclosure structure, which plays an important role in creating a suitable indoor thermal environment and saving energy. [0003] The patent with the notification number CN104761283B discloses a thermal insulation material for external walls. The thermal insulation material includes the following raw materials in parts by weight: 25-45 parts of slag Portland cement, 5-10 parts of fly ash, and 1-3 parts of foaming agent. parts, sodium silicate 0.1-0.7 parts, water 20-40 parts. Wherein, the foaming agent is a mixture of 30-70wt% dodecyl dimethyl amine oxide and 30-70wt% N-dodecyl glycol amine. [0004] Th...

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Problems solved by technology

[0004] This kind of external wall insulation material is mainly formed by the curing of Portland cement. Its function is relatively simple, and it only has the function of heat preservation.

Usually the outer wall also needs to have the function of fire prevention, but for the above-mentioned outer wall, it needs to be additionally coated with fireproof paint, which is more troublesome to operate and needs to be improved

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