High-strength foam cement insulation board and preparation method thereof

Abstract

The invention discloses a high-strength foam cement insulation board. The board is prepared from raw materials including cement, coal ash, water, emulsion, calcium stearate, fiber hair, a foam stabilizer, a water repellent, calcium chloride, aluminium sulfate and a foaming agent which are added in a ratio. The preparation method comprises steps of: first-level stirring: mixing the cement, the coal ash, the water, the emulsion, and calcium stearate according to a ratio, and stirring uniformly; second-level stirring: sequentially adding the fiber hair, the foam stabilizer, the water repellent, the calcium stearate and hydrogen peroxide into the size according to the ratio after first-level stirring, and stirring uniformly; carrying out injection molding, foaming and initial curing; demolding; cutting; and maintaining a finished product. The insulation board is short in production period, high in production efficiency, high in performance index and low in cost.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a high-strength foamed cement insulation board and a preparation method thereof. Background technique [0002] Existing thermal insulation materials for exterior walls mainly include inorganic thermal insulation materials and organic thermal insulation materials. Use organic thermal insulation materials for external wall insulation, once a fire breaks out, the toxic gas released by it can cause suffocation or even death. At present, some foreign countries require that organic thermal insulation materials are not allowed to be used in buildings over 20 meters, especially in the interior insulation of external walls. my country is also paying more and more attention to this issue. Therefore, inorganic thermal insulation materials have gradually become mainstream products in the market, among which foamed cement thermal insulation boards have become the most ideal and promising th...

AI Technical Summary

Problems solved by technology

However, the existing foamed cement insulation materials are mainly foamed with sulphoaluminate quick-drying cement, which has a short service life, and serious carbonization, quality deterioration, and wall peeling will occur within two years.

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