Raw Material Preparation:
During the production of gas-concrete, aluminum powder paste is used as an additive, mixed with other materials such as tail sand, cement, gypsum, etc. The typical formula ratio for these ingredients is often Tail Sand:Quicklime:Cement:Gypsum:Aluminum Powder Paste = 70:19:7:4, with the aluminum powder paste accounting for approximately eight parts per thousand of the total mixture.
Chemical Reaction:
During the production process, the aluminum powder paste reacts chemically with silica, quicklime, and other materials, releasing gases. These gases form bubbles within the concrete, resulting in a porous structure. This structure enhances the thermal insulation properties and lightness of the concrete.
Safety Precautions:
When using aluminum powder paste, it is important to ensure that the powder concentration does not exceed the required limit to prevent sparks from occurring when the oxygen level is sufficient, potentially causing accidents. During the application of aluminum powder paste, care must be taken to avoid the separation or excessive concentration of aluminum powder, and all equipment should be grounded. The amount of aluminum powder indoors must be strictly controlled at a low level, and proper ventilation should be ensured according to requirements to prevent the occurrence of flames or sparks.
In summary, the use of aluminum powder paste in gas-cured bricks involves adding the paste during the production of gas-concrete, utilizing its chemical reaction with other materials to generate gases and create a porous structure, thereby improving the thermal insulation and lightness of the concrete. Simultaneously, attention must be paid to safe operations during use to prevent accidents.
Jiangsu Jiali New Material Technology Co., Ltd. Is manufacturer of Aluminum paste for AAC blocks, should you have any questions please feel free to contact us :
Contact: Lorena
Mobile: +86 15366416606 ( Wechat & Whatsapp ID)
Email: lorena@jlmaterial.com