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


  • TECHNOLOGY AND ORGANIZATION OF CONSTRUCTION
  • Restoration Of Operational Characteristics Of Backfill Insulation In Combined Roofs
  • UDC 692.435
    doi: 10.33622/0869-7019.2024.01.59-64
    Vyacheslav N. CHERNOIVAN1, vnchernoivan@list.ru
    Vitaly A. SAMKEVICH2, vitswa2@yandex.ru
    Nikolay V. CHERNOIVAN1, chernoivan@inbox.ru
    1 Brest State Technical University, ul. Moskovskaya, 267, Brest 224017, Republic of Belarus
    2 Branch of Institute BelNIIS - Scientific and Òechnical Center, ul. Moskovskaya, 267/2, Brest 224023, Republic of Belarus
    Abstract. The results of laboratory studies of the main physical and mechanical characteristics of expanded clay gravel, used for a long time in combined insulated roofs of residential and industrial buildings, which showed that the performance characteristics of the material have significantly decreased, are presented. It was found that the moisture content of the backfill insulation material increased several times compared to the design one, as a result of which the coefficient of thermal conductivity increased compared to the values established by the design and estimate documentation. The laboratory studies made it possible to conclude that the main reason for the deterioration of the operational characteristics of the backfill insulation is a significant increase in the volume of open pores. To restore the operational characteristics of backfill insulation on the roof, a technology has been developed that is based on the monolithiñ method. The publication gives the technological parameters of the work and the recommended composition of the hydrophilic mixture (powder), which will be injected through injectors into the layer of backfill insulation. Analysis of the results of laboratory studies of expanded clay gravel after injection of a hydrophilic mixture through injectors showed that there are practically no open pores in the granules, due to which the moisture content of the material decreased compared to the initial one, and the coefficient of thermal conductivity decreased.
    Keywords: contact concrete grouting method, hydrophilic mixture, injector, granule structure, working injection pressure
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  • For citation: Chernoivan V. N., Samkevich V. A., Chernoivan N. V. Restoration of Operational Characteristics of Backfill Insulation in Combined Roofs. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2024, no. 1, pp. 59-64. (In Russ.). doi: 10.33622/0869-7019.2024.01.59-64

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