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Title: THE EFFECT OF DIFFERENT DEGRADATION ENVIRONMENTS ON CHLORIDE CONTENT AND CARBONATION IN CONCRETE
THE EFFECT OF DIFFERENT DEGRADATION ENVIRONMENTS ON CHLORIDE CONTENT AND CARBONATION IN CONCRETE

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Kristyna Hrabova; Dita Vorechovska; Tomas Mazan; Dominik Lisztwan; Dalibor Kocab; Pavla Rovnanikova; Petr Konecny
10.5593/sgem2024/6.1/s26.48
10.5593/sgem2024/6.1
1314-2704
978-619-7603-74-3
English
24
6.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Green Buildings Technologies and Materials
Different forms and combinations of degradation attacks cause the damage of concrete and reinforced concrete structures. Among the most usual belong ingress of chlorides and carbonation that influence the quality of the concrete and also affect its ability to protect reinforcement. The resistance of concrete against the mentioned attacks is given also by other surrounding conditions, like temperature, mechanical load, etc. In this paper, experimental findings are presented focused on the investigation of the effect of three different degradation environments, namely freeze-thaw cycles, immersion in salt solution and placing in carbonation chamber, on concentration of chlorides and degree of carbonation in concrete profile. The degradation environments were varied in order to compare the effect of each environment separately and also the effect of combined environmental action.
[1] Favier, A., Wolf, C., Scrivener, K., Habert, G. A sustainable future for the European Cement and Concrete Industry. ETH Zurich. 1(1), pp. 1-97, 2018.
[2] Hrabova, K., Lehner, P., Ghosh, P., Konecny, P., Teply, B. Sustainability Levels in Comparison with Mechanical Properties and Durability of Pumice HighPerformance Concrete. Applied Sciences. vol. 11(11), pp. 1-13, 2011.
[3] Konecny, P., Hornakova, M., Lehner, P., Rovnanikova, P., Sykora, M. Model uncertainty in diffusion coefficient for chloride ingress into concrete, Elsevier, Procedia Structural Integrity. vol. 31, issue 1, pp. 147-153, 2021.
[4] Gong, F., Jacobsen, S. Modeling of water transport in highly saturated concrete with wet surface during freeze/thaw, Cement and Concrete Research. Vol. 115, pp. 294-307, 2019.
[5] Bonnet, S., Balyssac, J.P. Combination of the Wenner resistivimeter and Torrent permeameter methods for assessing carbonation depth and saturation level of concrete, Construction and Building Materials, Vol.188, pp. 1149-1165, 2018.
[6] Ueli, M. Angstm Challenges and opportunities in corrosion of steel in concrete, Materials and Structures, vol. 51:4, 2018.
[7] Zhang, D., Shao, Y. Effect of early carbonation curing on chloride penetration and weathering carbonation in concrete, Construction and Building Materials, vol. 123, pp. 516-526, 2016.
[8] Bao, J., Wei, J., Zhang, P., Zhuang, Z., Zhao, T. Experimental and theoretical investigation of chloride ingress into concrete exposed to real marine environment, Cement and Concrete Composites, vol. 130, 2022.
[9] Ekolu, S.O. A review on effects of curing, sheltering, and CO2 concentration upon natural carbonation of concrete, Construction and Building Materials, vol. 127, pp. 306-320, 2016.
[10] EN 206:2013+A2:2021 Concrete – Specification, performance, production and conformity.
[11] Nordtest NTBuild 443, Nordtest Method: Accelerated Chloride Penetration into Hardened Concrete, Nordtest, Esbo, Finland, 1995.
[12] EN 73 1322 Determination of Frost Resistance of Concrete (in Czech); UNMZ: Prague, Czech Republic, 1968.
This outcome was achieved with the financial support of the Czech Science Foundation, project No. 22-19812S and specific research project No. FAST-S-23-8279 at Brno University of Technology.
conference
https://doi.org/10.5593/sgem2024/6.1/s26.48
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
325-332
1 - 7 July, 2024
website
9814
concrete, service life, durability, chlorides, carbonation

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