Foamed concreteCharacteristic：

1, light weight, bulk density 250-1500kg/m University, equivalent to about 1/10-1/2 ordinary concrete, can reduce the overall load of the building.
2, the compressive strength: the compressive strength is greater than 0.5Mpa, according to the production need to produce the different strength of the foam concrete products.
3, thermal insulation: low thermal conductivity, B03 bulk density thermal conductivity is lower than 0.08w/ (m.k).
4, sound insulation: foam concrete containing a large number of independent bubbles and uniform distribution, sound-absorbing ability 0.09-0.19% is 5 times that of ordinary concrete, have a unique sound insulation function.
5, with good thermal insulation: thermal resistance is about 20-30 times of ordinary concrete, can play a very good heat insulation effect.
6, low elastic seismic performance: foam concrete has a low elastic modulus, so that it has good absorption and dispersion effect on the impact load. The external force show pad, improve the earthquake resistance.
7 and low absorption rate: foam has a robust and independent foam connection, absorption rate is less than 25% of the with a moisture-proof, anti permeability performance.
8, environmental protection: the raw materials for the foam concrete for cement and foaming agent, is environmentally friendly energy-saving products.
9, the overall good: can be on-site pouring construction, with the main project is closely related.
10, pump: foam concrete has a unique liquid and resilient foam, coupled with the flow of strong, long distance pumping, and operating into the ability, high degree of mechanization, construction of a large area for filling tunnels and as the various buildings within the cushion.

泡沫混凝土保温隔热层施工方法：

1、在施工屋面女儿墙四周标好应作隔热层的厚度及坡度。

2、用大型自动化机械把发泡剂、水泥、粉煤灰、水等混合物搅拌成均匀的流质泡沫混凝土，按图纸要求做出屋面相应的厚度。

3、屋面保温隔热层做好后，2天内不能上人或进行其他屋面作业。

Matters needing attention：