Effect of the time development of physical and chemical degradation of basalt-based reinforcement on its applicability in cement composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00380098" target="_blank" >RIV/68407700:21110/25:00380098 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/5.0247463" target="_blank" >http://dx.doi.org/10.1063/5.0247463</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0247463" target="_blank" >10.1063/5.0247463</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of the time development of physical and chemical degradation of basalt-based reinforcement on its applicability in cement composites

Popis výsledku v původním jazyce

Basalt fibers based reinforcing elements for concrete structures (Basalt Fiber Reinforced Polymer bars (BFRP), chopped basalt fibers) are supposed to be more corrosion resistant than the common steel rebars and wires, especially in the marine environment. Mild steel, used for production of conventional concrete reinforcing elements, is well-known for its corrosion resistance in the basic environment provided by cementitious concrete matrix. As the pH of concrete goes down in time due to carbonation and other processes, the steel corrosion is activated. The chloride anion (marine environment) is also acting as mild steel corrosion activator. On the other hand, the basalt fibers are supposed to be resistant to the chloride activation. Concerning the pH effect, basalt is sensitive to the both acid and alkaline environment where its dissolution may take place. It means that it should not be vulnerable to the pH decrease as the mild steel does. The present paper aims to test how the lower pH influences the performance of basalt fibers in cementitious matrix.

Název v anglickém jazyce

Effect of the time development of physical and chemical degradation of basalt-based reinforcement on its applicability in cement composites

Popis výsledku anglicky

Basalt fibers based reinforcing elements for concrete structures (Basalt Fiber Reinforced Polymer bars (BFRP), chopped basalt fibers) are supposed to be more corrosion resistant than the common steel rebars and wires, especially in the marine environment. Mild steel, used for production of conventional concrete reinforcing elements, is well-known for its corrosion resistance in the basic environment provided by cementitious concrete matrix. As the pH of concrete goes down in time due to carbonation and other processes, the steel corrosion is activated. The chloride anion (marine environment) is also acting as mild steel corrosion activator. On the other hand, the basalt fibers are supposed to be resistant to the chloride activation. Concerning the pH effect, basalt is sensitive to the both acid and alkaline environment where its dissolution may take place. It means that it should not be vulnerable to the pH decrease as the mild steel does. The present paper aims to test how the lower pH influences the performance of basalt fibers in cementitious matrix.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/GA21-00800S" target="_blank" >GA21-00800S: Chemické a fyzikální interakce výztuže na čedičové bázi s cementovou matricí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings 3269

ISBN

9780735451032

ISSN

0094-243X

e-ISSN

0094-243X

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

AIP Publishing, APL, the American Institute of Physics

Místo vydání

Melville, NY

Místo konání akce

Heraklion

Datum konání akce

23. 5. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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