CORROSION PROPERTIES AND BOND STRENGTH IN CONCRETE OF CONVENTIONAL PRESTRESSING STEEL REINFORCEMENT WITH PLASMA SPRAYED Si-SiC-SiO2 COATINGS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F24%3A00389517" target="_blank" >RIV/68407700:21610/24:00389517 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
CORROSION PROPERTIES AND BOND STRENGTH IN CONCRETE OF CONVENTIONAL PRESTRESSING STEEL REINFORCEMENT WITH PLASMA SPRAYED Si-SiC-SiO2 COATINGS
Original language description
In this study is verified the possibility of corrosion protection of conventional concrete prestressing reinforcement (Y1860 S7 15.7) by application of a protective ceramic coating based on decomposition products after plasma deposition of silicon carbide. The composition of the coating was investigated by cross-sectional scanning electron microscopy (SEM). The barrier protection properties of the silicon carbide coating (Si-SiC-SiO2) partially incongruently decomposed into elemental silicon and amorphous SiO2 were comparatively verified in NaCl solution by measuring the time dependence of the polarization resistance (R-p). Furthermore, the bond strength of coated prestressing reinforcement in normal strength concrete was comparatively tested using pull-out test arrangement. The coating provides enhanced barrier corrosion protection in an electrolyte with chloride anions. The presence of a top significantly porous coating layer reduces the bond strength in normal strength concrete by approximately 30 % for 2.0 mm slip.
Czech name
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Czech description
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Project
<a href="/en/project/GA24-12783S" target="_blank" >GA24-12783S: Study of mechanisms and kinetics of hydrogen corrosion damage of conventional prestressing reinforcement in concrete bridge structures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 11th International Conference on Chemical Technology
ISBN
978-80-88307-21-1
ISSN
2336-811X
e-ISSN
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Number of pages
6
Pages from-to
136-141
Publisher name
Česká společnost chemická
Place of publication
Praha
Event location
Mikulov
Event date
Apr 15, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001678797800023

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