Corrosion resistance of 10 425 csn/ s185 din prestressing steel with basalt coatings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F25%3A00647339" target="_blank" >RIV/61389021:_____/25:00647339 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21610/25:00389518

Výsledek na webu

<a href="https://amca-admin.rachel.puxdesign.cz/ICCT/media/content/2025/program/proceedings_icct-2025.pdf" target="_blank" >https://amca-admin.rachel.puxdesign.cz/ICCT/media/content/2025/program/proceedings_icct-2025.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Corrosion resistance of 10 425 csn/ s185 din prestressing steel with basalt coatings

Popis výsledku v původním jazyce

Corrosion damage to conventional prestressing steel reinforcement stimulated by chloride anions has recently caused a critical reduction in the load-bearing capacity and subsequent collapse of several important bridges and footbridges. The use of suitable protective coatings on the surface of the prestressing reinforcement can ensure a significant extension of the service life of these structures. The paper evaluates the corrosion barrier protection of a coating formed from basalt, classified according to QAPF with a high proportion of forsterite and diopsite when hot-dipping on conventional prestressing reinforcement by evaluating the porosity of the coating and exposures in solutions of HCl and NaCl. The roughness and phase composition of two variants of applied basalt coatings, melted at 1260°C on a preheated steel substrate and surface-applied by plasma spraying technology on a cold substrate using a WSP-H 500 water-stabilized plasma torch, were also evaluated. The differences are particularly evident in the increase in the proportion of amorphous silica phases, which ensure almost zero coating porosity and high adhesion even to the plain surface of the metal substrate.

Název v anglickém jazyce

Corrosion resistance of 10 425 csn/ s185 din prestressing steel with basalt coatings

Popis výsledku anglicky

Corrosion damage to conventional prestressing steel reinforcement stimulated by chloride anions has recently caused a critical reduction in the load-bearing capacity and subsequent collapse of several important bridges and footbridges. The use of suitable protective coatings on the surface of the prestressing reinforcement can ensure a significant extension of the service life of these structures. The paper evaluates the corrosion barrier protection of a coating formed from basalt, classified according to QAPF with a high proportion of forsterite and diopsite when hot-dipping on conventional prestressing reinforcement by evaluating the porosity of the coating and exposures in solutions of HCl and NaCl. The roughness and phase composition of two variants of applied basalt coatings, melted at 1260°C on a preheated steel substrate and surface-applied by plasma spraying technology on a cold substrate using a WSP-H 500 water-stabilized plasma torch, were also evaluated. The differences are particularly evident in the increase in the proportion of amorphous silica phases, which ensure almost zero coating porosity and high adhesion even to the plain surface of the metal substrate.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GA24-12783S" target="_blank" >GA24-12783S: Studium mechanizmů a kinetiky vodíkového korozního poškození konvenční předpínací výztuže betonových mostních konstrukcí</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 12 th International Conference on Chemical Technology

ISBN

978-80-88307-27-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

126-131

Název nakladatele

Czech Chemical Society

Místo vydání

Praha

Místo konání akce

Mikulov

Datum konání akce

14. 4. 2025

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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