The cement foaming brick foams the foaming agent mechanically through the foaming system of the foaming machine, and uniformly mixes the foam with the cement slurry. Cement foam bricks are used to introduce air or nitrogen gas, carbon dioxide gas, oxygen and other gases into the concrete slurry according to the application needs, and after reasonable maintenance and molding, a concrete product with a large number of small closed pores and considerable strength is formed.
Cement foam bricks have the following features
1, low-elastic earthquake
The porosity of the lightweight concrete cement foam bricks makes it have a lower elastic modulus, so that it has a good absorption and dispersion effect on the impact load. At the same time, the lightweight and high-strength properties of lightweight concrete cement foam bricks can effectively reduce the building load by 20% to 40%. The smaller the building load, the stronger the anti-seismic capacity.
2, light and high strength
The density of lightweight concrete cement foam bricks is small, and the density class of commonly used lightweight concrete cement foam bricks is 300-1200kg/m3, which is equivalent to 1/5-1/10 of common concrete. The compressive strength is more than 0.25Mpa, according to Building design requires the production of lightweight concrete concrete foam bricks with different strengths. The use of such materials in interior and exterior wall structures, levels, appearances, columns, etc. of buildings can generally reduce the weight of the building by about 25%, and some can reach 30%-40% of the total weight of the structure. In recent years, ultra-lightweight concrete cement foam bricks with a density of 160 kg/m3 have also been used in construction projects. Due to the low density of lightweight concrete cement foam bricks, the weight of the building can be significantly reduced, the carrying capacity of the building can be increased, and the seismic resistance of the building can be enhanced. Therefore, the use of lightweight concrete cement foam bricks in construction projects has significant economic benefits.
3, sound insulation, good fire performance
Lightweight concrete cement foam bricks are porous materials with a sound-absorbing capacity of 0.09-0.19%. They have good sound insulation properties and can be used as sound insulation layers in construction floors, highway noise barriers, and underground building top floors. Lightweight concrete cement foam bricks are distinguished from traditional soundproof materials in that they are inorganic and non-flammable, so they have good fire resistance and can improve the fire safety performance of buildings.
4. The construction speed is quick and the site is poured and mechanized. The construction speed is 1/3 faster than the polystyrene foam board.
5, insulation, heat insulation
Due to the large amount of closed fine pores in lightweight concrete cement foam bricks, the thermal performance is good. Lightweight concrete cement foam bricks with a density range of 300-1200kg/m3 have a thermal conductivity of 0.06-0.3W (MK). , The use of lightweight concrete cement foam bricks as building walls and roofing materials, has a good thermal insulation effect.
Editor's summary: An overview of cement foam bricks and their product features are introduced here. For more information, you can follow this site information.
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