Evaluation of the influence of concretes on aggregates according to GOST 32703–2014 on the strength and deformative properties of bent reinforced concrete structures
https://doi.org/10.31659/0005-9889-2022-609-1-10-16
Abstract
Research and development work was carried out at the A.A. Gvozdev NIIZHB, one of the tasks of which was to assess the impact of a large aggregate according to GOST 32703–2914 “Public automobile roads. Crushed stone and gravel from rocks. Technical requirements” for the strength properties of reinforced concrete structures. As part of the study, an experimental and theoretical assessment of the effect of a large filler according to GOST 32703–2014 on the strength of normal and inclined sections of bent elements was performed. A comparative analysis with the strength of the bent elements made with a large aggregate according to GOST 8267–93 “Crushed stone and gravel from dense rocks for construction works. Technical conditions”. According to the research results, it was found that the replacement of a large aggregate with GOST 8267 with aggregate GOST 32703 in bent reinforced concrete structures has practically no effect on the strength of normal and inclined sections. At the same time, the assessment of deformability showed the presence of deviations of more than 20 %. With this in mind, proposals were formulated for further more detailed studies of the deformability of structures with filler according to GOST 32703–2014.
About the Authors
S. A. Zenin
Research, Design and Technological institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev JSC “Research Center “Stroitel’stvo”
Russian Federation
Russian Federation
Candidate of Sciences (Engineering)
e-mail: lab01@mail.ru
K. L. Kudyakov
Research, Design and Technological institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev JSC “Research Center “Stroitel’stvo”
Russian Federation
Russian Federation
Candidate of Sciences (Engineering)
O. V. Kudinov
Research, Design and Technological institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev JSC “Research Center “Stroitel’stvo”
Russian Federation
Russian Federation
Engineer
References
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Review
For citations:
Zenin S.A., Kudyakov K.L., Kudinov O.V. Evaluation of the influence of concretes on aggregates according to GOST 32703–2014 on the strength and deformative properties of bent reinforced concrete structures. Concrete and Reinforced Concrete. 2022;609(1):10-16. (In Russ.) https://doi.org/10.31659/0005-9889-2022-609-1-10-16
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