Justification of Methods for Temperature and Strength Monitoring of In-Situ Reinforced Concrete Construction

The article presents a method the temperature and strength control for the concrete ageing in in situ construction of reinforced concrete buildings. A comparison of the laboratory and field observation results obtained using the computerized temperature and strength control and the strength analysis of the concrete ageing detected by the non-destructive testing show a good agreement. This indicates that the proposed method is suitable and allows the most probable control for the concrete strength in time at negative temperatures in in situ construction carried out in accordance with the SNiP 70.13330.2012 ‘Load bearing and wall structures’. As a result, the standard ‘The temperature and strength control for and strength analysis of the concrete ageing in in situ construction’ is designed at Tomsk State University of Architecture and Building.

монолитное домостроение, зимние условия, температурно-прочностной контроль, тепловая обработка бетона, cast-in-place construction, winter conditions, temperature and strength control, heat concrete curing

1. SNiP 70.13330.2012. Nesushchie i ograzhdayushchie konstruktsii [Load bearing and wall structures]. Moscow: Minregion Rossii Publ., 2012. 280 р. (rus)

2. Corporate Standard NOSTROY 2.6.54–2011. Konstruktsii monolitnye betonnye i zhelezobetonnye. Tekhnicheskie trebovaniya k proizvodstvu rabot, pravila i metody kontrolya [Cast-inplace and reinforced concrete structures. Technical requirements]. Natsional'noe ob"edinenie stroitelei. Moscow, 2011. 157 p. (rus)

3. Pikus G.A., Mozgalev K.M. Otsenka neobkhodimogo kolichestva kontrol'nykh temperaturnykh tochek pri vyderzhivanii monolitnykh plitnykh konstruktsii v zimnee vremya [Estimation of required number of temperature control points in monolithic slab-like constructions in winter]. Akademicheskii vestnik UralNIIproekt RAASN. 2014. No. 3. Pp. 70–71. (rus)

4. Golovnev S.G., Pikus G.A., Mozgalev K.M., Savinov S.A. Komp'yuternyi kontrol' i regulirovanie protsessov vyderzhivaniya betona v zimnikh usloviyakh [Computer process control and regulation of concrete curing in winter conditions]. Akademicheskii vestnik UralNIIproekt RAASN. 2010. No. 2. Pp. 75–78. (rus)

5. Zhurov N.N., Komissarov S.V. Sistema temperaturno-prochnostnogo kontrolya betona v rannem vozraste [System temperature and strength concrete control at early ageing]. Moscow. Vestnik MGSU. 2010. No. 4. Pp. 296–300. (rus)