Accelerates cement hardening and the rising of the hydration heat. KEMAZIM OC is a liquid admixture used in the preparation of concrete and cement mortars at lower temperatures. Plasticises, so the volume weight of the concrete is bigger, therefore, it improves waterproofness as well. Meant for preparation of concretes, cement and extended mortars at low temperatures. Enables concreting at the temperature of -10°C, however, the concrete is to be prepared at +5°C.