Aluminum Hydroxide
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Adding Aluminum Hydroxide to aluminum sulfate in alkali-free shotcrete accelerator systems to help control the set time of the shotcrete. Aluminum Hydroxide is used to manage the setting time of the sprayed concrete, improve its strength and durability, and reduce shrinkage.
Aluminum Hydroxide acts as a filler, helping to reduce the amount of aluminum sulfate needed to achieve the desired set time. This reduces the overall amount of alumina in the shotcrete mixture, which can help reduce the risk of corrosion and other issues over time.