Winter concreting of floor slabs

The article deals with the analysis of modern methods and technologies of concreting of monolithic structures and research of the development of concrete strength in reinforced concrete floor slab during the building period in wintertime. In view of climatic conditions on the Russian territory, the problem of development of concrete strength during the building period in wintertime are particularly topical. The article examines the nonsteady temperature fields in concreting section under different ambient temperature, thickness of thermal insulation on the top face of concreting section and electric heating mode on lower face during winter concreting. The article authors determined that it is impossible to provide the optimal temperature of the concrete mixture to gain in critical strength without special job practice. Simulation the development of concrete strength in the program allows you to get the most complete picture of temperature fields, to make a quick selection of the optimal parameters of
concreting.