ASH GROVE® Fast-Set Accelerator is an admixture designed to help concrete mix and other cement-based products achieve faster setting times without affecting strength, durability or color. Excellent for use in cool and cold weather to accelerate set times and reduce the risk of frozen mortar or concrete. Just add to dry mix before adding water. Recommended for construction or repair of concrete, mortar, stucco or other cement based products. Use on driveways, sidwalks, brick work and stucco.