Dissolution Calorimetry Study of Basalt Fibers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00371621" target="_blank" >RIV/68407700:21110/23:00371621 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/5.0162113" target="_blank" >http://dx.doi.org/10.1063/5.0162113</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0162113" target="_blank" >10.1063/5.0162113</a>

Result language

angličtina

Original language name

Dissolution Calorimetry Study of Basalt Fibers

Original language description

Basalt fibers and Basalt Fibers Reinforced Polymer (BFRP) bars are currently widely studied as alternative elements for reinforcement of concrete subjected to an aggressive media, especially to sea water, where conventional streel reinforcing elements are suffering intensive corrosion. Nevertheless not even the basalt based reinforcing elements are completely stable in a range of environment which may be attacking the concrete. The first step of a corrosion process of basalt fibers is their interaction with aggressive solution, which may result to a chemical reaction between fiber and a component of medium and consequent dissolution of fiber (and possibly followed by precipitation of a solid corrosion product). The present paper aims to characterize the initial – dissolution – step of interaction of basalt fibers with five types of solutions (from acid to alkaline) which are attacking basalt fibers in concrete by help of isothermal calorimetry. The obtained results proved that basalt fibers are reacting with acid, alkaline and salty solutions. The most intensive endothermic heat flow appears in all solutions (except water) after a few minutes; nevertheless certain measureable heat flow was generated for at least 6 hours of reaction. High pH of solution is responsible for higher (absorbed) total heat and longer reaction duration. This study will continue by attempt to characterize the reaction products by SEM and XRD, as well as to describe the reaction kinetics in a longer time scale than is covered by calorimetry.

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

20101 - Civil engineering

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

International Conference of Numerical Analysis and Applied Mathematics ICNAAM 2021

ISBN

978-0-7354-4589-5

ISSN

0094-243X

e-ISSN

1551-7616

Number of pages

4

Pages from-to

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Publisher name

AIP Publishing

Place of publication

Melville, NY

Event location

Rodos

Event date

Sep 20, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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