imix FreezeGuard is an admixture that can be mixed with any air entrained standard concrete. It resists freezing down to 20°F. It can be used with slumps up to six inches. It accelerates set times and does not need to be covered or heated with blankets to set up. It is chloride free, so it will not cause any discoloration of your concrete.
Take a look at the requirements for pouring and finishing concrete with imix FreezeGuard, including our guarantee.