FIELD: construction engineering. SUBSTANCE: this relates to thermal treatment of freshly poured concrete in erection of concrete and reinforces concrete buildings and structures. According to method, electric heaters are located in cylindrical hollows which are formed by placing tubes made of cardboard or other materials in vertical position before pouring concrete. These tubes are left in concrete. For longer life of electric heaters, they are enclosed in metal housing which is filled with mixture of sand and soluble glass. EFFECT: high efficiency. 1 cl, 4 dwg
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