Tunneling-Shotcrete-Additives

Apral

Apral is an accelerating admixture for shotcreting works without affecting the final mechanical strength. It is an alkali-free product based upon an aluminium oxide-in-water solution.
It is suitable for use in both wet and dry mix shotcrete and provides faster setting times to shotcrete for use in tunnelling, mining, dams, shaft sinking, slope protection and in general construction applications when there is a need to accelerate the set times of sprayed concrete. It is also suitable for cold weather conditions.

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