STUDY OF THE DEFORMATION CHARACTERISTICS AND CREEP COEFFICIENT OF HIGH-STRENGTH SELF-COMPACTING HEAVY- WEIGHT AND LIGHT- WEIGHT CONCRETES AT VARIOUS RELATIVE HUMIDITY OF THE ENVIRONMENT
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The paper presents the results of an experimental study of the characteristics of high-strength self-compacting heavyweight and lightweight concretes of strength classes B60–B100 at different ambient relative humidity levels. The aim of the study was to evaluate the effect of environmental humidity on strength, elastic modulus, shrinkage and creep strains, creep compliance, and creep coefficient of high-strength self-compacting modified concretes. The tests were carried out in accordance with GOST 24452 and GOST 24544 in climatic chambers at relative air humidity levels of 20, 60, and 90% for 240 days. A formula for the numerical determination of the creep coefficient is proposed and recommended for inclusion in GOST 24544. It was found that a decrease in ambient relative humidity may lead to an increase in creep strains by more than 1.7 times. It is shown that the calculation procedure specified in GOST 24544 may, in some cases, overestimate ultimate creep strains, with the overestimation becoming more pronounced as the concrete strength class increases and the ambient humidity decreases. The creep coefficient values of high-strength heavyweight and lightweight concretes do not exceed 1 and are more than two times lower than the standard values specified in SP 63.13330.2018 and EN 12390. The obtained results demonstrate that experimental determination of creep coefficients can significantly improve the efficiency of using modern modified concretes in the construction of unique buildings and structures.
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S.S. Kaprielov, V.I. Travush, N.I. Karpenko, A.V. Sheinfeld, G.S. Kardumyan, Yu.A. Kiseleva, and O.V. Prigozhenko. Modified High-Strength Concretes of Classes B80 and B90 in Monolithic Structures. Construction Materials, No. 3, 2008, pp. 9-13.
Kaprielov S.S., Sheinfeld A.V., Chilin I.A., Dondukov V.G., and Selyutin N.M. Modified Concretes: Reality and Pro-spects. Vestnik NITs Stroitelstvo. 2024;40(1):92-104. https://doi.org/10.37538/2224-9494-2024-1(40)-92-104.
Kaprielov S.S., Sheinfeld A.V., Jalal A., Zaitsev A.S., and Amirov R.A. Technol-ogy for the Construction of High-Rise Building Frames from High-Strength Concretes of Classes B60-B100. Vestnik NITs Stroitelstvo. 2022;33(2):106-121. https://doi.org/10.37538/2224-9494.
S.S. Kaprielov, A.V. Sheinfeld, G.S. Kardumyan. New Modified Concretes. Moscow, Paradiz Printing House LLC, 2010, p. 258.
Sheinfeld A.V. Features of the Formation of a Hierarchical Micro- and Nano-Structure of Cement Systems with Com-plex Organomineral Modifiers. Concrete and Reinforced Concrete, No. 2, 2016, pp. 16-21.
Rozental, N.K. Corrosion Resistance of Low- and Very-Low-Permeability Cement Concretes. – Moscow: FSUE TsPP, 2006 – 520p.
Sheinfeld, A.V. Organomineral modifiers as a factor increasing the durability of re-inforced concrete structures / Concrete and reinforced concrete. - No. 3. – 2014. - P.16-21.
Berg O.Ya., Shcherbakov E.N., Pisanko G.N. High-strength concrete. M.: Publishing house of construction literature, 1971. 208 p.
S.S. Kaprielov, A.V. Sheinfeld, N.I. Karpenko, E.N. Kuznetsov On the regu-lation of the modulus of elasticity and creep of high-strength concretes with the modifier MB-50S. // Concrete and rein-forced concrete, No. 6, 2003, p.8-12.
S.S. Kaprielov, A.V. Sheinfeld, N.I. Karpenko, E.N. Kuznetsov Influence of the organomineral modifier MB-50S on the structure and deformability of cement stone and high-strength concrete. // Con-crete and reinforced concrete, No. 3, 2003, p.2-7.
S.S. Kaprielov, P. D. Arleninov, A. V. Sheinfeld, P. S. Kalmakova Influence of the relative humidity of the air on the creep coefficient of high-strength self-compacting concretes / Construction ma-terials. – 2025. – No. 10. – P. 25-35. – DOI 10.31659/0585-430X-202.
Wagner O. Das Kriechen unbewehrten Betons. Deutscher Ausschuss für Stahlbeton. Verlag Ernst und Sohh, Berlin, H. 131. 1958..
Залесов А.С., Клевцов В.А., Шугаев В.В. Научно технический отчет по теме «Анализ состояния использования в строительстве высокопрочных бетонов, имеющихся данных по проектирова-нию, области рационального примене-ния особо высокопрочных бетонов и составление рабочей программы иссле-дований». НИИЖБ –Москва: 2001-2002. – 80 с.
Bezgodov I.M., Kapustin D.E., Efishov L.I. (2024) Physical-mechanical and rheologi-cal characteris-tics of high-strength concrete and granite. Industrial and Civil Construction, no. 8, pp. 48–56. DOI: 10.33622/0869-7019.2024.08.48-56.
Domarova E.V. (2022) Influence of creep on the stress-strain state of reinforced concrete multi-story buildings. Construc-tion and Reconstruction, №9.
Kaprielov S.S., Sheinfeld A.V., Selyutin N.M. Self-compacting high-strength ex-panded clay concrete of classes B50–B65 – a new generation of lightweight con-cretes for high-rise buildings. Stroitelnye materialy. 2023. No. 4. Pp. 42–50. DOI: https://doi.org/10.31659/05.
Kaprielov S.S., Sheynfeld A.V., Karpenko N.I., Selyutin N.M., Moiseenko G.A., Bezgodov I.M. Influ-ence of the type of aggregate on the phys-ical and technical characteristics of high-strength self-compacting cement systems // Concrete and reinforced concrete. 2025. No. 2 (627). Pp. 27-42. D.
Kaprielov S.S., Sheynfeld A.V., Karpenko N.I., Selyutin N.M., Moiseenko G.A., Bezgodov I.M. Strength and deformation characteristics of high-strength self-compacting light-weight concretes with artificial and natu-ral porous aggregates // Concrete and reinforced concrete.
Kaprielov S., Sheynfeld A. & Selyutin N. (2022). Control of heavy concrete charac-teristics affecting structural stiffness / International Journal for Computational Civil and Structural Engineering, 18(1), 24–39. https://doi.org/10.22337/2587-9618-2022-18-.
Bezgodov I., Kaprielov S. & Sheynfeld A. (2022). Relationship between strength and deformation characteristics of high-strength self-comacting concrete / International Journal for Computational Civil and Structural Engi-neering, 18(2), 175–183. https://doi.
Kaprielov S.S., Sheynfeld A.V., Travush V.I., Karpenko N.I., Krylov S.B. As-sessment of the strength and deformation characteristics of high-strength concretes in structures and the dynamics of their change // Construction Materials. 2023. No. 11. Pp. 28-38. DOI: https://doi.org/1.
Nastic M. et al. Shrinkage and creep strains of concrete exposed to low relative hu-midity and high temperature environments / Nuclear Engineering and Design. 2019. Vol. 352. P. 110154.
Kaprielov S.S., Sheinfeld A.V., Selyutin N.M., Chilin I.A., Arzumanov I.A., Dondukov V.G. Concrete mix for struc-tural lightweight concrete. Patent RF No. 2835462 dated 25.02.2025.
Travush V.I., Arleninov P.D., Desyatkin M.A., Ivashchenko A.N., Kalmakova P.S., Kaprielov S.S., Konin D.V., Krylov A.S., Krylov S.B., Chilin I.A., Sheinfeld A.V. Study of the creep of steel-concrete samples. Construction and Reconstruc-tion. 2024 ;( 1):49-63.
Shurbert-Hetzel C., Daneshvar D., Robisson A., Shafei B. Data-enabled compar-ison of six prediction models for concrete shrinkage and creep. Case Stud-ies in Construc-tion Materials. 2023. Vol. 19. e02406. EDN: OVNDON. https://doi.org/10.1016/j.cscm.2023.e02.
Akhverdov I.N. Fundamentals of Con-crete Physics / I.N. Akhverdov. – Mos-cow: Stroyizdat, 1981. – 464 p.
Ramachandran V.S. Science of Concrete / V.S. Ramachandran, R.F. Feldman, J. Boduen. – Moscow: Stroyizdat, 1986. – 280 p.
Taylor, H.F.W. Chemistry of Cements / H.F.W. Taylor. – Moscow: Publishing House of Construction Literature, 1969. – 501 p.
Sheikin, A.E. Structure and Properties of Cement Concrete / A.E. Sheikin, Yu.V. Chekhovsky, and M.I. Bruser. – Moscow: Stroyizdat, 1979. – 344 p.
Recommendations for Accounting for Concrete Creep and Settlement in the Calculation of Concrete and Reinforced Concrete Structures: NIIZhB – Moscow: Stroyizdat, 1988. – 121 p.