Various raw materials in the production process of autoclaved aerated concrete block equipment
November 02, 2021
Aerated concrete block has good processing performance. It can be sawed, shaved, nailed, ground, and can be threaded during the manufacturing process. It brings great convenience and flexibility to the construction. When the temperature of aerated concrete block equipment is below 600°C, the compressive strength will increase slightly.
When the temperature is around 600°C, the compressive strength is close to the compressive strength at room temperature, so the fireproof performance of aerated concrete as a building material meets the fireproof standard. From the ventilated pore structure of aerated concrete, we can see that due to the internal structure of aerated concrete, a large amount of closed gas has a large number of evenly distributed closed pores, so it has sound-absorbing properties, which is not available in general construction Materials.
The compressive strength of products produced with aerated concrete block equipment exceeds 25 kg/cm2 , which is equivalent to that of 125 clay bricks and lime sand bricks. This is due to the light weight and good overall performance of aerated concrete. It has low inertia force during earthquakes and uniform distribution of eyelets, which has the seismic resistance. This will be of great benefit to our multi-earthquake country.
According to the basic functions of various raw materials in the production process of aerated concrete blocks, they can be divided into four categories. That is: basic constituent materials, gas-producing materials, conditioning materials and structural materials. 1. The basic constituent materials are silica and calcium materials; gas-producing materials are gas-producing agents and bubble stabilizers. Conditioning materials include gas generating process conditioner and autoclave process conditioner; Structural materials include reinforcement and reinforcement preservative.
During the production of aerated concrete plants, other different auxiliary materials can be used depending on the process requirements and the specific conditions of each production plant.
During the static hardening of aerated concrete block blanks, the hardening effect differs from the non-insulating effect. If the temperature of the blank disappears rapidly, for example, if it is not insulated in the northern winter, the blank will not only be greatly affected by the hardening rate, but will also shrink and sink severely. Therefore, currently, all plants tend to use insulation and stopping equipment to ensure the speed and uniformity of the setting of the blanks.
The cutting machines used in aerated concrete plants mainly divide and visualize the aerated concrete body to meet the shape requirements of the aerated concrete product. The cutting process embodies aerated concrete, easy to shape, large size, easy to separate, flexible in appearance to meet the needs of different applications and can be mechanized by mass mechanization. It is also a different kind of aerated concrete from other concrete. Outstanding advantages.