Fireproof facing mortar composite layer

Abstract

The invention discloses a fireproof facing mortar composite layer. The fireproof facing mortar composite layer comprises a screed-coat, a surface layer and a coating, wherein the screed-coat is mainlyprepared from low-temperature calcination graphite, portland cement, quartz sand, rubber powder and a water-retaining agent, the surface layer is prepared mainly based on an aluminate cement-rich composite cementing material system (HAC-OPC-CS), and the coating is mainly prepared from silicone acrylic emulsion and nano-hybrid resin. By the multilevel composite fireproof mechanism of the screed-coat, the surface layer and the coating, the fireproof facing mortar composite layer achieves relatively good fireproof performance on the whole. The mortar composite layer obtained by the invention hasgood binding power with the basic surface of a wall body, and as inorganic materials account for the vast majority of ingredients, the mortar composite layer is particularly suitable for the decorative design of architectural outer walls of villas, foreign-style houses and the like.

Description

technical field [0001] The invention relates to the field of wall insulation materials, in particular to a fire-resistant decorative mortar composite layer. Background technique [0002] At present, the commonly used exterior wall decoration materials on the market are roughly divided into three systems: ceramic tile system, paint system, and facing mortar system. The three major systems have their own advantages and disadvantages. The tile system is limited by the nature of the tile itself (self-weight, size, water absorption, air permeability, etc.), and it is more prone to bonding failure, resulting in hollowing or even falling off. It is not suitable for thermal insulation systems. Paste; the bonding strength of the coating system is mainly derived from the van der Waals force of the organic material, peeling and peeling occur from time to time, and poor air permeability leads to frequent bubbling of the coating product, and yellowing of organic pigments under ultraviole...

AI Technical Summary

Problems solved by technology

The three major systems have their own advantages and disadvantages. The tile system is limited by the nature of the tile itself (self-weight, size, water absorption, air permeability, etc.), and it is more prone to bonding failure, resulting in hollowing or even falling off. It is not suitable for thermal insulation systems. Paste; the bonding strength of the coating system is mainly derived from the van der Waals force of the organic material, peeling and peeling occur from time to time, and poor air permeability leads to frequent bubbling of the coating product, and yellowing of organic pigments under ultraviolet radiation It will also make the color retention period of coating products shorter (5-10 years); compared with ceramic tile systems and coating systems, the finishing mortar system undoubtedly has more advantages in terms of bonding safety, air permeability, color retention, etc. And the characteristics of the material composition mainly based on inorganic materials make the facing mortar fully reach the same lifespan as the building.

[0003] At present, most of the existing external wall insulation materials in my country are EPS boards (molded polystyrene boards), which have many advantages such as light weight, good volume stability, superior thermal insulation performance, and easy bonding, but the fire resistance of EPS boards is relatively low. Low, once it encounters high temperature, it is extremely flammable and poses a serious threat to the safety of residents and property in the building

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