● Core core foam concrete insulation block product introduction

Hongfa Heavy Industry independent research and development of productionCore foamed concrete insulation block]is a new type of wall material with ordinary concrete small hollow block as the shell, foamed concrete is injected into its core hole, and the block shell and foamed concrete in the core hole are poured into a whole through full-automatic production line and innovative process. It integrates building enclosure and thermal insulation functions. It has excellent properties of light weight, self-insulation, sound insulation, heat preservation, waste utilization and energy saving, and the same life as the structure of building objects. It is widely used in building exterior wall masonry. Included in the "Guangxi construction field of ten key promotion technology catalog", "Guangxi insulation new wall materials and composite wall catalog."

　　● Core foam concrete insulation block Functional characteristics:

1. C25 grade high strength, high density concrete is used to make 25mm thick ultra-thin bottomless outer shell. The density of concrete is about 2200 kg/m, so it has high strength and less materials.

2. Ultra-light foamed high thermal insulation concrete made of cement, fly ash and slag injected into the inner hole by physical foaming (density 150-200 kg/m "combines two different functional concretes into a composite wall thermal insulation material at one time in production. The foamed thermal insulation concrete is put on a hard concrete thin shell coat. The product has the functions of light weight but load-bearing, self-insulation, heat preservation, non-combustibility, waste utilization and energy saving, sound absorption, sound insulation and the same life as the building structure.

3. The hollow rate in the thin shell of the core foamed thermal insulation block reaches more than 60%, the thin wall is bottomless, the density of the core thermal insulation foam body is 150-200 kg/m, and the total weight is 950-1000 kg/m ', which is lighter than the national standard of 1200 kg/m in 6.4 items of GB/T1529-2002 lightweight aggregate concrete small hollow block. The size reduces the self-weight of the structure and receives good economic and social benefits.

4. Use high-tech organic foaming agent developed by cement, fly ash, slag and other materials and special foaming equipment to make slurry composed of round hollow thin shell spheres with a diameter of 2~3mm. When filling the inner core of the block, friction occurs with the inner wall of the block, so that the spheres contacting the inner wall are broken into plain ash slurry, which solidifies on the inner wall of the block and exposes the surface after pouring the upper and lower foaming bodies, the surface of the sphere is also broken, forming a plain ash closed waterproof layer, thus playing a closed and waterproof role. Foam in solidification molding volume does not collapse naturally produce 2% ~ 5% expansion rate,

5. The density is 150~200 kg/m, the thermal conductivity is 0.0599 W/m.k, aging resistance, heat preservation, environmental protection, waste benefit and low price. It is a new type of environmental protection, energy saving, heat preservation and heat insulation building material.

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