Assessment of compliance of the properties of rebar rolled products with the technical requirements of the El-Dabaa NPP project
https://doi.org/10.31659/0005-9889-2022-614-6-25-32
Abstract
The article contains the test results of reinforcement of grade A500C manufactured by a metallurgical plant in the Arab Republic of Egypt (ARE) according to GOST R 52544 and their analysis for compliance with the requirements of GOST 34028 for reinforcement of grades of A500СНУ and/or A500СЕУ required by the El Dabaa NPP project. The purpose of this work is to determine the possibility of the metallurgical plant to produce reinforcement that meet the requirements of the El Dabaa NPP project. A comparative analysis of the technical requirements of regulatory and technical documents (NTD) for reinforcement is given. To assess the stability of the manufactured reinforcement for the previous period, the data transmitted by the manufacturer on the technological processes of manufacturing reinforcement, the results of control of mechanical properties and chemical composition are given. The analysis of the main test results selected at the manufacturer, samples of reinforcement is presented. In particular, the actual geometric characteristics of the periodic profile, cross-sectional area and mass, the actual chemical composition and mechanical properties of reinforcement of grade A500C are given and their analysis for compliance with the requirements of grades A500СНУ and/or A500СЕУ according to GOST 34028 is carried out. The evaluation of the test results of samples of welded joints of reinforcement of grade A500C for tension, bending and shear for compliance with the technical requirements of GOST 34028 to grade A500СНУ and/or A500СЕУ is given. The analysis of the results of endurance tests of reinforcement of grade A500C and the requirements of GOST 34028 for grade A500СНУ and/or A500СЕУ is given. The article pays attention to some deviations of mechanical properties obtained from the test results of reinforcement from the requirements of GOST 34028. Conclusions are formulated about the compliance of reinforcement of grade A500C manufactured by the metallurgical plant in the ARE according to GOST R 52544 with the requirements of grades A500СНУ and A500СЕУ according to GOST 34028 for the El Dabaa NPP project. The article is informational and analytical in nature and will be useful to specialists in solving issues of assessing the compliance of reinforcement with the requirements of foreign NPP construction projects.
About the Authors
V. V. Dyachkov
Research Institute of Concrete and Reinforced Concrete (NIIZhB) named after A.A. Gvozdev JSC «Research Center «Construction»
Russian Federation
Russian Federation
Candidate of Sciences (Engineering), Deputy Head of the Centre No. 3
e-mail: d_vv@mail.ru
S. O. Slyshenkov
Research Institute of Concrete and Reinforced Concrete (NIIZhB) named after A.A. Gvozdev JSC «Research Center «Construction»
Russian Federation
Russian Federation
Engineer, Head of the Sector of the Center No. 3
e-mail: slyshenkov@mail.ru
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Review
For citations:
Dyachkov V.V., Slyshenkov S.O. Assessment of compliance of the properties of rebar rolled products with the technical requirements of the El-Dabaa NPP project. Concrete and Reinforced Concrete. 2022;614(6):25-32. (In Russ.) https://doi.org/10.31659/0005-9889-2022-614-6-25-32
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