Comparison of concrete creep test methods as per Russian and foreign normative documents. Part 2. Testing and processing of results
https://doi.org/10.37538/2224-9494-2022-2(33)-32-43
Abstract
Introduction. The main approaches to long-term creep tests of concrete regulated by GOST 24544-2020, valid in the Russian Federation, as well as foreign ISO, ASTM, and EN standards, are analyzed.
Aim. In this work, fundamental differences in conducting tests following Russian and foreign standards are determined. These efforts are essential and urgent, since, in order to use test results obtained abroad in Russia, it is necessary to harmonize test methods and initial test parameters (samples, measuring and test equipment, etc.).
Materials and methods. The article reviews testing procedures, controlled parameters, and processing of result; part 1 of the article covered the application, testing and measuring equipment, manufacturing process, sample parameters and fittings, and test preparation.
Results. ISO, ASTM, and EN are comparable; however, they differ greatly from GOST 24544 in some respects, in particular, regarding the sample parameters and the methods of their installation in the testing equipment.
Conclusion. Further harmonization of GOST 24544 with the aforementioned foreign standards is necessary.
About the Author
P. D. Arleninov
Research Institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev, JSC Research Center of Construction
Russian Federation
Russian Federation
Petr D. Arleninov, Cand. Sci. (Engineering), Deputy chief of the laboratory of reinforced concrete mechanics,
2nd Institutskaya str., 6, bld. 5, Moscow, 109428
References
1. Aleksandrovsky S.V. Creep and shrinkage of concrete and reinforced concrete structures. Moscow: Stroiizdat Publ.; 1976 (in Russian).
2. Arelninov P.D., Krylov S.B., Kornyushina M.P. Comparison of methods of conducting long-term tests for concrete creep in accordance with Russian and foreign regulatory documents. Part 1. Samples and equipment. Vestnik NIC Stroitel’stvo = Bulletin of Science and Research Center of Construction. 2020;27(4): 5–17 (in Russian). https://doi.org/10.37538/2224-9494-2020-4(27)-5-17
3. Arutyunyan N.Kh. Some questions in creep theory. Moscow: Gostekhizdat Publ; 1952 (in Russian).
4. Prokopovich I.E. Fundamentals of applied linear theory of creep. Kyiv: Vishcha shkola Publ.; 1978 (in Russian).
5. NIIZHB Gosstroy USSR. Recommendations for taking into account the creep and shrinkage of concrete in the calculation of concrete and reinforced concrete structures. Moscow: Stroiizdat Publ.; 1988. pp. 5–15 (in Russian).
6. State Standard 24544-2020. Concrete. Methods for determining shrinkage and creep strains. Moscow: Standartinform Publ.; 2021 (in Russian).
7. ISO 1920-3 Testing of concrete – Part 3: Making and curing test specimens. Geneva; 2019.
8. ISO 1920-4 Testing of concrete – Part 3: Strength of hardened concrete. Geneva; 2020.
9. ISO 1920-9 Testing of concrete – Part 9: Determination of creep of concrete cylinders in compression. Geneva; 2009.
10. ISO 1920-8 Testing of concrete – Part 8: Determination of drying shrinkage of concrete for samples prepared in the field or in the laboratory. Geneva; 2009.
11. ASTM C512/С512М Standard Test Method for Creep of Concrete in Compression. ASTM International; 2015.
12. ASTM C617/C617M Standard Practice for Capping Cylindrical Concrete Specimens ASTM International; 2015.
13. ASTM C192/ C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory. ASTM International; 2015.
14. ASTM С39/С39М Test Method for Compressive Strength of Cylindrical Concrete Specimens. ASTM International; 2021.
15. ASTM C470/C470M Specification for Molds for Forming Concrete Test Cylinders Vertically. ASTM International; 2015.
16. ASTM C157/C157M Standard Test Method Length Change of Hardened Hydraulic-Cement Mortar and Concrete. ASTM International; 2017.
17. CEN-EN 12390-2 Testing hardened concrete – Part 2: Making and curing specimens for strength test. European Committee for Standardization; 2019.
18. CEN-EN 12390-3 Testing hardened concrete – Part 3: Compressive strength of test specimens. European Committee for Standardization; 2019.
19. EN 12390-17 Testing hardened concrete – Part 17: Determination of creep of concrete in compression. European Committee for Standardization; 2017.
Supplementary files
Review
For citations:
Arleninov P.D. Comparison of concrete creep test methods as per Russian and foreign normative documents. Part 2. Testing and processing of results. Bulletin of Science and Research Center of Construction. 2022;33(2):32-43. (In Russ.) https://doi.org/10.37538/2224-9494-2022-2(33)-32-43
Views:
662
Email this article 