problem. China has been listed as one of the important national policies because of its large population, energy shortage, development of energy and energy-saving technologies, and ensuring the sustainable development of the national economy. Building energy conservation can not only reduce energy consumption, reduce environmental pollution, but also improve the overall quality of the building and the level of decoration technology. In this paper, the technical principle and application of cement rubber powder and polystyrene granule insulation slurry are studied for the production of polystyrene granule insulation slurry, engineering technicians and construction personnel.
1 Development status of polystyrene granule insulation slurry technology In recent years, China's building insulation and energy conservation technology has developed rapidly. The state and the government attach great importance to the promotion of building energy-saving technologies. Some provinces and cities adopt administrative and economic means and encourage policies. Such methods have accelerated the promotion work. Many scientific research units and engineering and technical personnel have done a lot of work on the technical development and application of polystyrene granule insulation slurry, and have achieved many results. In many ways, its research and application technology level has caught up with or surpassed similar new products in Europe. In Beijing, Hebei, Shanghai, Jiangsu, Anhui, Guangdong, Northeast and other regions, polystyrene granule insulation slurry has been widely used in internal and external wall insulation projects, and has achieved good economic and social benefits. However, some enterprises have limitations in understanding the raw materials and external thermal insulation systems of polystyrene granule insulation slurry products. The quality of the products is unstable, and there are often problems such as empty drums, cracking and thermal performance after construction. Construction quality and technical regulations are not strictly followed during construction, and engineering quality problems are also easy to occur. Scientifically considering the external wall insulation system and combining the external thermal insulation system with the construction engineering quality system should focus on the energy-saving efficiency of the thermal insulation and the construction quality and long-term stability after construction. Construction is a century-old plan. Whether polystyrene granule insulation slurry can withstand the test of decades and hundreds of years on external wall insulation is a common concern at home and abroad. In addition, the level of architecture and decoration reflects the economic, cultural, scientific and technological level of a country to varying degrees, so scientifically carry out polystyrene on the ingredients, formula, construction technology, economy and practicality. The in-depth study of the granule insulation slurry system makes the technical performance of the polystyrene granule insulation slurry product more advanced and reliable, more economical and practical, and more in line with China's national conditions.
The main raw material properties and functions of 2 polystyrene granule thermal insulation slurry are cement polymer powder, which is formed by high temperature polymerization of various polymer materials, which plays the role of thickening, water retention and crack prevention in cement mortar, and can also reduce products. cost. At present, there are many types of rubber powder products available, and different types of products play different roles and roles. From the characteristics of polystyrene granule insulation slurry products with cement and polystyrene granules as the main raw material, the author believes that the polymer rubber powder used in polystyrene granule insulation slurry should be selected according to the characteristics of cement. Special rubber powder with sustainable water retention capacity can effectively improve the late stability and service life of polystyrene granule insulation slurry. Compound bonding mortar, polystyrene granule insulation slurry, hollow ceramsite thermal insulation slurry, Peng Expanded perlite insulation slurry, external wall anti-cracking putty, wear-resistant floor and other products have the ability to increase the sustainable water retention capacity of cement slurry, improve the bond strength of cement, reduce and control cement slurry in the hardening process It has a dry shrinkage force and avoids the quality problems of empty drums, cracks, falling off, etc. It has a good performance and reliable quality special rubber powder. It has been applied in exterior wall and external thermal insulation engineering for nearly 5 years, its technical strength and Product stability, economical and practicality, fully affirmed by the manufacturers of insulation building materials and construction technicians, and enjoy a high reputation.
Cement cement is one of the most important basic raw materials in polystyrene granule insulation slurry. First, we should have a better understanding of the material properties of cement and its role in polystyrene granule insulation slurry. It is necessary to scientifically select other raw materials for the needs of cement performance. After many years of polystyrene granule insulation slurry production and engineering practice, this view has been recognized by many people. Some manufacturers' products are not qualified due to the selection of inferior raw materials. The quality of the products produced in the project is unsatisfactory. The engineering quality problems appear in the project. If the goods are not available, the loss of the other party will be lost, and the harm will be harmed. Some manufacturers do not understand the mechanism of the properties of raw materials in the polystyrene granule insulation slurry system, listen to unprofessional dealers, blindly purchase raw materials that are not suitable, even purchase imported materials, and some manufacturers The product is sent to the quality inspection department for testing. It is considered to be good, but it is cracked, hollowed, and shedding in the project. I don't know why. Cement is a hydraulically set inorganic cementitious material, which can reach decades, or even hundreds of years, in terms of bond strength, anti-aging, moisture resistance, environmental protection, long-term stability, service life, and economical practicability. It is difficult to replace other materials. It can adapt to various environmental climates (drying, rain, snow, wind, acid rain, ultraviolet light, etc.). Cement is a hydration reaction with water at normal temperature to form a gel and a crystal, and its strength is achieved by relying on water. During the hardening process, cement products are produced as the water evaporates and the strength increases. Strong chemical shrinkage and dry shrinkage are prone to quality problems such as empty drums, cracks, and shedding. Cracks or cracks are the key factors that cause water seepage and water leakage on building roofs and walls. As long as there are cracks and cracks, it is difficult to repair (due to the crack size of the cement mortar crack, it will change with the environmental climate temperature difference and dry humidity change, and even if it is made of highly elastic materials, it is difficult to repair. Well, this is also a common phenomenon of repairing, repairing and leaking. This is also a disadvantage of cement products. Therefore, it is required that the polystyrene granule insulation slurry should have sufficient and continuous water retention capacity, and the bonding force should be strong. Shrinkage is small. Polystyrene granule insulation slurry system should use high-quality brand-name cement, correctly select the type and specification of cement, master the amount of addition, and then choose the high-quality rubber powder that matches it. These are all important if the cement quality is not good and the rubber powder If the choice is not correct, the quality and stability of the polystyrene granule insulation slurry will not be guaranteed.
The polystyrene granule polystyrene granules play a thermal insulation role in the polystyrene granule thermal insulation slurry system, and the commercial polystyrene granules produced by the regular manufacturer are used. In order to reduce costs, some manufacturers use recycled polystyrene foam packaging and mechanically pulverize them into a certain particle size, which turns waste into treasure and protects the environment. As long as the quality of the discarded polystyrene bubbles recovered is guaranteed, it is all feasible. The amount of polystyrene particles in the polystyrene granule insulation slurry product and the thickness of the polyphenyl granule insulation slurry layer construction are directly related to the energy conservation efficiency of the polystyrene granule insulation slurry system.
Quartz sand quartz sand contains silica, and its Mohs hardness is high, which is different from river sand. River sand is natural stone in natural state, and it is generated by repeated collision and friction by water for a long time. Its composition is more complicated. The surface has a certain smoothness and a large amount of impurities. The quartz sand is collected from the quartz deposit, mechanically crushed and ground, and under the action of mechanical force, it forms an irregular multi-diagonal shape and forms a strong viscosity with the cement slurry. The relay can enhance the flexural and compressive strength of the slurry, which is beneficial to the improvement of the overall strength of the polystyrene granule insulation slurry.
Compared with mineral wool and glass fiber, polypropylene short fiber polypropylene short fiber has the advantages of anti-aging, high tensile strength, easy dispersion, no pollution to the environment and human body, and physicality in polystyrene granule insulation slurry. The tensile strength of the polyphenylene granules maintains a certain tensile and crack resistance.
The quality and stability of the polystyrene granule insulation slurry system depends mainly on the choice of raw materials. In the selection of cement, cement rubber powder, quartz sand and polystyrene particles, high-quality polypropylene short fiber, it is the key to ensure product quality and engineering quality.
(Finish)
Sheet Steel Metal Welding,Precision Sheet Metal Weld,Fabrication Precision Sheet Metal,Metal Precision Sheet Fabrication
Zhongda Steel Structure , https://www.zhongdametal.com