• Construction Gunite and Shotcrete Shotcrete Additives

Aluminum Sulfate

• Aluminum Sulfate is a significant component of Alkali-Free shotcrete accelerators. It is added to alkali-free shotcrete accelerator systems as a setting accelerator. When added to the shotcrete mix, it reacts with the calcium hydroxide in the mixture to form calcium sulfate, accelerating the setting time of the shotcrete. This accelerates the shotcrete’s initial setting, allowing for faster construction and reducing the required time required for support. Besides being used to control the setting time of the sprayed concrete, it improves its strength and durability and can minimize shrinkage.