Deterioration of basalt-based reinforcement in corrosive environments: Experimental monitoring and mathematical models

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00370808" target="_blank" >RIV/68407700:21110/23:00370808 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/2628/1/012012" target="_blank" >http://dx.doi.org/10.1088/1742-6596/2628/1/012012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/2628/1/012012" target="_blank" >10.1088/1742-6596/2628/1/012012</a>

Result language

angličtina

Original language name

Deterioration of basalt-based reinforcement in corrosive environments: Experimental monitoring and mathematical models

Original language description

The basalt-based reinforcing elements are considered as alternative to conventional steel-based reinforcing elements (rebars, wires). The motivation to use basalt-based elements (fibers, composite bars, meshes etc.) is better corrosion resistance of basalt fibers especially in sea-water environment, compared to carbon steel. Nevertheless, it does not mean that basalt fibers are 100% corrosion resistant. The basalt fibers are produced from silicate melt of proper composition, i.e. the basalt fibers are vulnerable to both acid and alkaline hydrolysis, as well as other silicates do. When basalt fibers are used as reinforcement in concrete, the alkaline hydrolysis will become an important issue. The present paper deals with experimental observation of basalt fibers in alkaline environment of Simulated Pore Solution. The fibers deterioration was monitored by their mass loss and SEM microscopy. Jander's model was used to describe mathematically the kinetics of the fibers alkaline hydrolysis. The results revealed that a corrosion products layer is formed on the fibers surface in this environment. The composition of this layer corresponds to N-A-S-H and C-A-S-H phases known from alkali-activated aluminosilicates or hydrated Portland cement.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

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

Project

<a href="/en/project/GA21-00800S" target="_blank" >GA21-00800S: Chemical and physical interactions of basalt-based reinforcement with cementitious matrix</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Article name in the collection

Journal of Physics: Conference Series 2628 (2023)

ISBN

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ISSN

1742-6588

e-ISSN

1742-6596

Number of pages

5

Pages from-to

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Publisher name

IOP Publishing Ltd.

Place of publication

Bristol

Event location

Poprad

Event date

Sep 6, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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