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RELATION OF CORROSION STIMULATORS TRANSPORT AND MODERN CONCRETE PORE MICROSTRUCTURE

1 NOVÁKOVÁ Radka
Co-authors:
1 KOUŘIL Milan 1 STOULIL Jan 1 SPLÍTEK Karel 1 ŠPINAR Vojtěch 2 DOBIÁŠ Daniel 2 POKORNÝ Petr
Institutions:
1 University of Chemistry and Technology Prague – Department of Metals and Corrosion Engineering, Prague, Czech Republic, EU
2 Czech Technical University in Prague - Klokner Institute, Prague, Czech Republic, EU
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
1135-1140
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
365 views / 135 downloads
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Abstract

Reinforced concrete service-life depends on a transport rate of corrosion stimulators, especially chlorides, towards the reinforcement through concrete cover layer. Traditional migration tests are able to state the effective diffusion coefficient; however they do not provide the information about the microstructure and its development in time. The electrochemical impedance spectroscopy was applied to study the microstructure of ultra-high performance concrete, ordinary Portland cement concrete and pore concrete. The porosity and electrochemical parameters were related to water and chloride permeability.

Keywords: EIS, UHPC, chloride diffusion, porosity

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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