Superlight vitrification micropearl morttar

Abstract

An ultra-light insulating mortar is prepared from vitrified micro-beads as ultra-light aggreagate, cementing material, redispersible colloid powder, cellulose, fibers and starch ether. Its advantages are high strength, volume stability, weatherability, air permeability and fire-proofing performance, low thermal conductivity and hydroscopicity, etc.

Description

technical field [0001] The invention relates to a kind of thermal insulation mortar, especially a kind of thermal insulation dry-mixed mortar composed of rubber powder polymer material, fiber, gelling material and various new admixtures, which use vitrified microbeads as ultra-light aggregate . Background technique [0002] The first 20 years of the 21st century will be the heyday of the development of my country's construction industry, which is developing at a rate of 1.6-2 billion square meters per year. However, according to relevant statistics, 99% of the existing nearly 40 billion square meters of existing buildings in China are high-energy buildings, and 95% of new buildings under construction are still high-energy buildings. The energy consumption per unit area of ​​existing buildings is more than three times that of developed countries. At present, my country's air-conditioning load has reached 45 million KW, which is equivalent to 2.5 Three Gorges Power Stations ...

AI Technical Summary

Problems solved by technology

[0010] ① Poor fire resistance of organic materials such as polyphenylene

Polyphenylene particles themselves are flammable, so according to relevant standard data and test reports, the combustion performance level of this material can only reach B1 level

[0011] ② Poor volume stability

According to relevant data, polyphenylene produces harmful volatile gas (benzene) at high temperature (60-80°C), which affects environmental safety.

[0013] ③ Poor aging resistance and weather resistance

Due to poor volume stability, volume expansion or contraction easily occurs after survival, hollowing, cracking, falling off, wall leakage and other common quality problems occur. Therefore, there are limitations in application, and at the same time, the ability to resist negative wind pressure is poor. Not suitable for high-rise buildings

[0014] ④, low strength

[0015] ⑤. Vulnerable to insects (termites)

[0016] ⑥ High water absorption

[0017] ⑦, Poor air permeability

[0019] ①. Expanded perlite has high water absorption

[0020] ②, expanded perlite is easy to pulverize

[0021] ③. In the current production process, the ore is heated until plasticity appears, but the excessively high temperature causes the vapor pressure generated by the crystallization water to burst the surface of the material. Although the resulting expanded material is very light and has the function of heat preservation, it will not be used until it is used. When laying mortar and plastering materials, the mixing water will take the cementitious material into the hollow structure of perlite, filling its space, and the amount of remaining cementitious material after drying makes the material lose its thermal insulation effect

[0022] ④. During the mixing process of the mechanical mixer, the perlite fibrous and sharp-edged structure is destroyed, which again causes the loss of volume and the resulting heat preservation effect

[0023] ⑤ Poor air permeability

[0025] ① There are many construction procedures, and it is difficult for workers to master

[0027] ③, the rebound is large during construction, the thickness is not easy to grasp, and the surface smoothness is poor

[0028] ④, low early strength, need special maintenance process, long construction period

[0029] ⑤. No construction during the rainy season

[0030] ⑥, high cost