In the event that a temperature is not lower than -5 ° C, you can do with less radical measures, introducing anti -control additives into concrete, heating water for kneading or covering the flooded structure with insulation or tarpaulin. At lower temperatures heating concrete, you must do it. In this case, the most optimal way is considered to warm up using electric wires laid in concrete. The cable attached to the power source is heated to a temperature of 80 ° C and gives the heat of the concrete mixture, the thermal conductivity of which is very large.
