CORROSION PERFORMANCE AND MECHANICAL STRENGTH OF CONVENTIONAL PRESTRESSING STEEL REINFORCEMENT WITH BORIDE LAYER

1 POKORNÝ Petr
Co-authors:
2 BROŽEK Vlastimil 3 MASTNÝ Libor 1 STEINEROVÁ Veronika 1 PRODANOVIC Nikola
Institutions:
1 Klokner Institute – Czech Technical University Prague, Czech Republic, EU, petr.pokorny@cvut.cz
2 Institute of Plasma Physics of the Czech Academy of Science, Prague, Czech Republic, EU, brozek@ipp.cas.cz
3 University of Chemical Technology Prague, Czech Republic, EU, mastny@vscht.cz
Conference:
33rd International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 22 - 24, 2024
Proceedings:
Proceedings 33rd International Conference on Metallurgy and Materials
Pages:
364-369
ISBN:
978-80-88365-21-1
ISSN:
2694-9296
Published:
26th June 2024
Metrics:
21 views / 28 downloads
Abstract

<div>In this study, the nature of boriding surface treatment mechanism of the steel prestressing strand is evaluated and then the corrosion resistance of the borided steel in hydrochloric acid is assessed (detection of the content of released iron and manganese in the exposure solution). The effect on the bond strength of the treated steel prestressing strand with normal strength concrete is also evaluated (pull-out test). Boriding was carried out in a boron carbide backfill with fluoride activators. This manuscript describes the first informative results on this topic.</div>

Keywords: Prestressing steel strand, boriding in backfill; corrosion properties; bond strength in concrete

© 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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