Aerated block is a lightweight, porous building material made from raw materials such as cement, lime, slag, fly ash, sand, and foaming agents, which are processed through grinding, batching, pouring, cutting, autoclaving, and milling. So what advantages do the aerated blocks produced by Tengyu aerated block equipment have?

a. Lightweight

  The general weight of aerated concrete blocks is 500-700 kg/m³, which is only 1/4 to 1/3 of clay bricks and sand-lime bricks, and 1/5 of ordinary concrete, making it one of the lighter types of concrete. It is suitable for infill walls in high-rise buildings and load-bearing walls in low-rise buildings. Using this material can reduce the self-weight of the entire building by more than 40% compared to ordinary brick-concrete structures. With the reduction in building self-weight, the seismic damage is less, thus greatly improving the seismic resistance of the building.

b. Good thermal insulation performance

  The thermal conductivity coefficient of aerated concrete is generally 0.11-0.18 (W/m²·K), which is only 1/4 to 1/5 of that of granular soil bricks and sand-lime bricks (the thermal conductivity coefficient of granular soil bricks is 0.4-0.58 (W/m²·K); the thermal conductivity coefficient of sand-lime bricks is 0.528 (W/m²·K), about 1/6 of ordinary concrete. Practice has proven that a 300mm thick aerated concrete wall has the same insulation effect as a 490mm thick clay brick wall, and its thermal insulation performance is also significantly better than that of a 240mm brick wall. This greatly reduces the thickness of the wall.

This, in turn, expands the effective usable area of the building, saves on building material thickness, improves construction efficiency, reduces project costs, and lightens the weight of the building.

c. High strength

  Experimental results show that the compressive strength of aerated concrete blocks is greater than 25 kg/cm², which is equivalent to the compressive strength of 125-grade clay bricks and sand-lime bricks.

d. Good seismic performance

  In the earthquake of magnitude 7.8 in Tangshan Fengnan and other areas, post-earthquake investigations showed that aerated concrete buildings only developed a few cracks, while brick-concrete structures almost completely collapsed, creating a stark contrast between these two buildings that were close in distance, structurally identical but made of different materials. Analysis suggests that this is due to the lightweight nature of aerated concrete, its overall good performance, and the small inertial force during an earthquake, giving it a certain level of seismic resistance.

e. Good processing performance

  Aerated concrete has excellent processing capabilities. It can be sawed, planed, nailed, milled, and drilled. Additionally, steel bars can be added during the manufacturing process, providing great convenience and flexibility for construction.

f. Certain high-temperature resistance

  Aerated concrete shows a slight increase in compressive strength at temperatures below 600℃, and when the temperature is around 600℃, its compressive strength approaches that at normal temperature. Therefore, the fire resistance of aerated concrete as a building material meets the national first-level fire resistance standards.

g. Good sound insulation performance

From the pore structure of aerated concrete, it can be seen that due to the internal structure of aerated concrete resembling bread, with a large number of uniformly distributed closed pores, it possesses sound-absorbing properties that are not found in general building materials.

h. Beneficial for mechanized construction

  Currently, prefabricated aerated concrete assembly slabs can save finished product storage space; reduce masonry labor; accelerate on-site construction progress; and improve construction efficiency.