HYDRASET is a calcium chloride concrete setting accelerator. It is a ready-to-use liquid adjuvant. It accelerates the initial setting time one to three times faster than normal mortar and concrete. This product is recommended for use in cold weather to speed set time and reduce risk of freezing of mortar and concrete mixes. It improves workability and strength while accelerating cement hydration. It makes it easier to place the mix and speeds up the construction by shortening the initial setting and curing time.