Use of Insulating Formwork:

The heat generated during hydration of cement can be gainfully conserved by having insulating formwork covers capable of maintaining concrete temperature above the desirable limit up to the first 3 days even though the ambient temperatures are lower. Timber, clean straw, blankets, tarpaulins, plastic sheeting, etc. can be used as a formwork covers. Timber formwork may be sufficient for moderately cold weather. The efficiency of the covers depends upon the thermal conductivity of the medium as well as ambient temperature conditions.