Placement and Curing:
The surface on which the concrete is to be placed should be sufficient warm. All ice, snow and frost should be completely removed before placing of the concrete. Water curing is not to be used in during the periods of freezing or in near freezing conditions.
Removal of Formwork:
Formworks are a sort of protection against cold water to the concrete. It is advantageous not to remove formworks until the end of a minimum period of protection. Since the rate of gain of strength is slow during the cold weather than the props and formwork have to be kept in place for a longer time than the normal concreting.