AbstractAbout the AuthorReferences
The impact of high temperature on high-strength concrete leads to the appearance of brittle fracture of an explosive character which is necessary to predict and regulate. For this purpose, the methodology on the basis of destruction mechanics has been developed, and criteria of the evaluation of viscosity and brittleness of high-strength concrete and steel-fiber concrete has been proposed to exclude the explosive fracture under the high temperature impact. The experimental multi-parametric evaluation of residual properties of strength, deformation, force, and energetic parameters of high-strength concrete has been made in the temperature range of 100–700°C. Criteria of the appearance of explosive destruction of highstrength concrete for produced and operated structures are proposed in terms of force and energetic parameters of fracture mechanics at a normal temperature.
S.N. LEONOVICH1, Doctor of Sciences (Engineering), Foreign Member of RAACS;
D.A. LITVINOVSKIY2, Head Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
D.A. LITVINOVSKIY2, Head Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
1 Belarusian National Technical University (65, Nezavisimosti Avenu, Minsk, 220013, Belarus)
2 «InzhSpecStroyProekt» OOO (Rom 210, 22, L. Mstislavca Street, Minsk, 220114, Belarus)
1. Patent BY 16193. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A. Declared 30.03.2010. Published 30.08.2012. (In Russian).
2. Patent BY 16194. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A. Declared 30.03.2010. Published 30.08.2012. (In Russian).
3. Patent BY 19170. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A. Published 30.06.2015. (In Russian).
4. Patent RU 2621618. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A., Kim L.V. Published 06.06.2017. (In Russian).
5. Patent RU 2621623. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A., Kim L.V. Published 06.06.2017. (In Russian).
6. Litvinovsky D.A., Zverev V.F., Leonovich S.N. Studies of mechanical properties of high-quality concrete in conditions of high-temperature heating. Problems of implementation of design standards and European Union standards in construction: collection of scientific works.-tech. article (scientific and method. seminar). Minsk. 29 may 2012. Part 2, pp. 84–91. (In Russian).
7. Leonovich S.N., Litvinovsky D.A. Analytical dependences of strength, deformation, force and energy parameters of heated high-strength concrete. Vestnik Belorusskogo natsional’nogo tekhnicheskogo universiteta. 2011. No. 4, pp. 30–34. (In Russian).
8. Litvinovsky D.A. Prochnost’, treshchinostoikost’ i dolgovechnost’ konstruktsionnogo betona pri vozdeistvii vysokikh temperatur. V kn. Prochnost’, treshchinostoikost’ i dolgovechnost’ konstruktsionnogo betona pri temperaturnykh i korrozionnykh vozdeistviyakh: v 2 ch [Strength, crack resistance and durability of structural concrete at high temperatures. In book Strength, crack resistance and durability of structural concrete under temperature and corrosive effects. In 2 parts]. Minsk. 2016. Part 1. Ch. 1, pp. 12–160. (In Russian).
9. Leonovich S.N., Zverev V.F., Litvinovsky D.A. Criteria of brittle fracture of high-strength concrete. Fracture Mechanics of materials and structures: proceedings of the VIII Academicals readings RAACS. Kazan. 2014, pp. 169–173. (In Russian).
10. Litvinovsky D.A., Leonovich S.N. Criteria of brittle strength of structural concrete at high temperatures: design manufactured and operated. Technology of construction and reconstruction: a collection of works BNTU. Minsk. 2017, pp. 293–301. (In Russian).
2. Patent BY 16194. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A. Declared 30.03.2010. Published 30.08.2012. (In Russian).
3. Patent BY 19170. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A. Published 30.06.2015. (In Russian).
4. Patent RU 2621618. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A., Kim L.V. Published 06.06.2017. (In Russian).
5. Patent RU 2621623. Sposob opredeleniya kriticheskogo koeffitsienta intensivnosti napryazheniya vysokoprochnogo betona [The method of determining the critical stress intensity factor of high strength concrete]. Leonovich S.N., Litvinovsky D.A., Kim L.V. Published 06.06.2017. (In Russian).
6. Litvinovsky D.A., Zverev V.F., Leonovich S.N. Studies of mechanical properties of high-quality concrete in conditions of high-temperature heating. Problems of implementation of design standards and European Union standards in construction: collection of scientific works.-tech. article (scientific and method. seminar). Minsk. 29 may 2012. Part 2, pp. 84–91. (In Russian).
7. Leonovich S.N., Litvinovsky D.A. Analytical dependences of strength, deformation, force and energy parameters of heated high-strength concrete. Vestnik Belorusskogo natsional’nogo tekhnicheskogo universiteta. 2011. No. 4, pp. 30–34. (In Russian).
8. Litvinovsky D.A. Prochnost’, treshchinostoikost’ i dolgovechnost’ konstruktsionnogo betona pri vozdeistvii vysokikh temperatur. V kn. Prochnost’, treshchinostoikost’ i dolgovechnost’ konstruktsionnogo betona pri temperaturnykh i korrozionnykh vozdeistviyakh: v 2 ch [Strength, crack resistance and durability of structural concrete at high temperatures. In book Strength, crack resistance and durability of structural concrete under temperature and corrosive effects. In 2 parts]. Minsk. 2016. Part 1. Ch. 1, pp. 12–160. (In Russian).
9. Leonovich S.N., Zverev V.F., Litvinovsky D.A. Criteria of brittle fracture of high-strength concrete. Fracture Mechanics of materials and structures: proceedings of the VIII Academicals readings RAACS. Kazan. 2014, pp. 169–173. (In Russian).
10. Litvinovsky D.A., Leonovich S.N. Criteria of brittle strength of structural concrete at high temperatures: design manufactured and operated. Technology of construction and reconstruction: a collection of works BNTU. Minsk. 2017, pp. 293–301. (In Russian).
For citation: Leonovich S.N., Litvinovskiy D.A. Destruction viscosity of high-strength concrete after high temperature impact. Stroitel’nye Materialy [Construction Materials]. 2017. No. 11, pp. 12–17. DOI: https://doi.org/10.31659/0585-430X-2017-754-11-12-17. (In Russian).