Inorganic foaming thermal-insulation mortar and preparation method thereof

Abstract

The present invention provides an inorganic foaming thermal-insulation mortar and a preparation method thereof, and belongs to the technical field of building material preparation. The thermal-insulation mortar comprises a cementing material, expanded perlite particles, a macromolecule polymer, a coagulant, an early strength agent, a physical foaming agent, a chemical foaming agent hydrogen peroxide, a chemical foaming agent foaming catalyst, a hydrophobic agent, reinforced short fibers and water. According to the present invention, the inorganic foaming thermal-insulation mortar can be directly coated on the wall and the roof requiring the thermal-insulation treatment, the thickness of the inorganic thermal-insulation mortar layer can be adjusted within 10-100 mm, screeding finishing construction is performed before the cementing material is subjected to final setting, and hardening is performed to obtain the inorganic thermal-insulation mortar layer with characteristics of good durability, good water resistance and good heat insulation, wherein the inorganic thermal-insulation mortar layer never sheds, and has the same service life as the building being subjected to thermal-insulation by the inorganic thermal-insulation mortar layer; and the raw material cost is low, and significant economic benefits and environmental benefits are provided.

Description

technical field [0001] The invention belongs to the technical field of building material preparation, and in particular relates to an inorganic foaming thermal insulation mortar which can be directly applied on exterior walls and roofs and a preparation method thereof. Background technique [0002] With the depletion of available oil and coal resources on the earth, and it will take time for human beings to develop new energy sources that can fundamentally solve the energy crisis, how to efficiently save energy and reduce energy consumption has become the key to solving energy problems . At present, my country's building energy consumption has accounted for 46.7% of the total energy consumption of the whole society, and the unit building energy consumption is 2 to 3 times that of developed countries, which has caused a heavy energy burden and serious environmental pollution to the society. It is urgent. The external thermal insulation method of the external wall adopts the ...

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Problems solved by technology

Chinese patent CN201310233030.2 "A Foamed Concrete and Its Preparation Method" proposes the concept of in-situ chemical foaming, which can obtain foamed ceramsite light concrete with higher strength, but only by chemical foaming and ceramsite It is impossible to obtain lightweight concrete-based materials with a bulk density lower than 500kg / m3 for lightweight coarse aggregate

In addition, in the current inorganic thermal insulation mortar, vitrified microbeads are used as fine and light aggregate, and cement is used as the cementitious material. , although the bulk density of the obtained inorganic thermal insulation mortar can reach below 400 kg / m3, and has a relatively ideal thermal insulation effect, but because a large amount of high molecular polymer is used as the auxiliary gelling material, the closed cell expansion Vitrified microbeads are light and fine aggregates, which makes the cost of thermal insulation mortar high, and also leads to unsatisfactory weather resistance and durability of thermal insulation mortar

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