When concrete is placed in cold weather, the mix sets up slower than normal. This increases the risk the water will freeze before the batch fully hardens. Frozen concrete does not set up correctly, and will likely need replacement in the future. Fortunately, adding a concrete accelerator to the mix increases the speed of the set time, reducing the amount of time the water in the mix is vulnerable to freezing. Fritz-Pak’s Non-Chloride Accelerator offers increased set time in a convenient water-soluble bag. One bag of NCA can speed up the set time by up to one hour.