Concrete block use water aluminum paste

   Product Description:   It is well known that aluminum is a very active metal. It can react with water, displace hydrogen in water and generate strong aluminum oxide. Since the surface of aluminum powder particles exposed to the air has been oxidized by oxygen in the air, an inert aluminum oxide protective film is generated, which hinders the contact between aluminum and water.There is a certain amount of alkaline substances in the aerated concrete slurry, such as calcium hydroxide. Aluminum oxide can be dissolved in alkaline solution to form metaaluminate. When the oxide film on the surface of aluminum powder is dissolved, the metal aluminum reacts with water, displaces hydrogen in water, and generates gel-like aluminum hydroxide. However, it also hinders the contact between water and the surface of metal aluminum, just like aluminum oxide, so that the reaction cannot continue. However, aluminum hydroxide can also be dissolved in alkaline solution to form metaaluminat…

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