Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science


  • TECHNOLOGY AND ORGANIZATION OF CONSTRUCTION
  • Improvement of the Method of Winter Concreting with the Use of Heating Wires
  • UDC 693.547.3 DOI: 10.33622/0869-7019.2019.06.51-58
    Vladimir V. SHISHKIN, e-mail: ShishkinVV@mgsu.ru
    Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
    Abstract. Long-term experience of application of a method of electric heating by heating wires of the monolithic concrete and reinforced concrete structures erected in winter conditions is analyzed. This method, developed by the author of the article, took a dominant position on the construction sites due to the simplicity and efficiency in comparison with the mass applied in those years, the method of electric heating of concrete with steel round and strip electrodes. The data on labor intensity, material and energy costs in comparison with the method of rod electric heating are presented. Step-by-step technological operations on preparatory works and electric heating of monolithic structures with the use of extensive hands-on material, which formed the basis for the development of technological regulations, supplemented by a number of new proposals to improve the technology of works, are concretized. In order to work out the optimal mode of heat treatment, the studies of the concrete thermal conductivity factor in the process of its heating and strength development were carried out. The method for calculation of the basic parameters of concrete electric heating is presented. For simplification of calculations, for a wide contingent of masters, superintendents and technical personnel, the nomogram , making it possible with sufficient accuracy under the construction conditions to calculate the necessary heating parameters, was developed. The necessity of grounding the heating wire remaining in the concrete to reduce the harmful effect of magnetic radiation from various appliances and household appliances on the human body is noted.
    Key words: winter concreting, concrete electric heating, warm-up transformer substation, thermo-active flexible coatings, technological regulations, nomographic calculation.
  • REFERENCES
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    2. Shishkin V. V., Myagkov A. D. Rekomendacii po elektroobogrevu monolitnogo betona i zhelezobetona nagrevatel'nymi provodami [Recommendations on electric heating of monolithic concrete and reinforced concrete by heating wires]. Moscow, CNIIOMTP Publ., 1989. 68 р. (In Russian).
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  • For citation: Shishkin V. V. Improvement of the Method of Winter Concreting with the Use of Heating Wires. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2019, no. 6, pp. 51-58. DOI: 10.33622/0869-7019.2019.06.51-58.

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