Development of methods for strength control of concretes and mortars in the new GOST R 70307–2022 «Fine-grained concretes and mortars for construction. Methods for determination of strength in thin-walled and thin-walled structures»
https://doi.org/10.31659/0005-9889-2022-614-6-3-7
Abstract
The article describes the peculiarities of the provisions of the new national standard GOST R 70307–2022 “Fine-grained concretes and mortars for construction. Methods for determination of strength in thin-walled and thin-layer structures”, developed in the Scientific Research Institute for Concrete and Reinforced Concrete (NIIZhB) named after A.A. Gvozdev – subdivision of JSC “SRC “CONSTRUCTION”. The tasks solved during standard’s development, opportunities and scope of application of the standard in practice are outlined. References to the primary sources of the test procedures used in the standard, peculiarities of the requirements to the test equipment, general principle aspects of the document put into effect, and proposals for prospective improvement of the supporting standards are given.
About the Authors
V. R. Falikman
Research, Design and Technological Institute of Concrete and Reinforced Concrete (NIIZhB) named after A.A. Gvozdev JSC «Research Center «Construction»
Russian Federation
Russian Federation
Doctor of materials science, Head of the NTS Center for Technically Complex Construction Projects
e-mail: vfalikman@yandex.ru
A. V. Antsibor
Research, Design and Technological Institute of Concrete and Reinforced Concrete (NIIZhB) named after A.A. Gvozdev JSC «Research Center «Construction»
Russian Federation
Russian Federation
Engineer, quality specialist of the NTS center for technically complex objects
e-mail: niigb7@mail.ru
References
1. SN 290-74 «Instructions for the preparation and use of mortars». M.: Stroyizdat. 1975. 74 p. (In Russian).
2. Cangussu N., Costa I., Júnior Á., Silveira M., Aslani F. Influence of the preparation of the cylindrical specimen surface and approach analysis on the test value of compressive strength. <i>Structural Concrete</i>. 2022. DOI:10.1002/suco.202100761.
3. ASTM C 39/C 39M. Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, 2009.
4. EN 12390-3. Testing hardened concrete – Part 3: Compressive strength of test specimens. 2019.
5. Associação Brasileira de Normas Técnicas (ABNT), NBR 5739 – Concreto – Ensaio de compressão de corpos de prova cilíndricos. 2018.
6. GB/T 50081. Test method of mechanical properties on ordinary concrete. China, 2019.
7. AS 1012.14. Methods of testing concrete – Method for securing and testing cores from hardened concrete for compressive strength. Australia, 2018.
8. Five methods for on-site evaluation of concrete strength. FPrimeC Solutions. January 9, 2020.
9. Guidelines for determining and evaluating the strength of concrete in the structures of buildings and structures. Moscow: Stroyizdat. 1979. 32 p.
Review
For citations:
Falikman V.R., Antsibor A.V. Development of methods for strength control of concretes and mortars in the new GOST R 70307–2022 «Fine-grained concretes and mortars for construction. Methods for determination of strength in thin-walled and thin-walled structures». Concrete and Reinforced Concrete. 2022;614(6):3-7. (In Russ.) https://doi.org/10.31659/0005-9889-2022-614-6-3-7
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