Alkali-silica reaction in volcanic rocks: a worldwide comparative approach
The potential alkali-silica reactivity (ASR) of volcanic aggregates, especially basalts, remains a source of debate in the scientific community. When evaluating the potentially deleterious character of this type of aggregate, different laboratory testing methods may produce contradictory data; this...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2022-05-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2940 |
| _version_ | 1818209632379731968 |
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| author | S. Medeiros I. Fernandes B. Fournier J.C. Nunes A. Santos-Silva V. Ramos D. Soares |
| author_facet | S. Medeiros I. Fernandes B. Fournier J.C. Nunes A. Santos-Silva V. Ramos D. Soares |
| author_sort | S. Medeiros |
| collection | DOAJ |
| description |
The potential alkali-silica reactivity (ASR) of volcanic aggregates, especially basalts, remains a source of debate in the scientific community. When evaluating the potentially deleterious character of this type of aggregate, different laboratory testing methods may produce contradictory data; this is particularly evident when using the accelerated mortar bar test (AMBT). In order to better understand such discrepancies, this study applied several methods of characterizing potential aggregate alkali reactivity, including the accelerated mortar bar test (AMBT), petrographic characterization, and the concrete prism test (CPT). Moreover, this study assessed volcanic aggregate samples from sites around the world, including the Azores, Brazil, Canada, the Canary and Hawaiian Islands, Iceland, Japan, Mozambique, New Zealand, Norway, and Turkey. The results obtained contribute to accurately assessing the potential alkali reactivity of volcanic aggregates and enhance the understanding of their different behaviours.
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| first_indexed | 2024-12-12T05:03:48Z |
| format | Article |
| id | doaj.art-0aa2d3711dcf451785a5485a548f909c |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-12T05:03:48Z |
| publishDate | 2022-05-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-0aa2d3711dcf451785a5485a548f909c2022-12-22T00:37:10ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262022-05-017234610.3989/mc.2022.16221Alkali-silica reaction in volcanic rocks: a worldwide comparative approachS. Medeiros0I. Fernandes1B. Fournier2J.C. Nunes3A. Santos-Silva4V. Ramos5D. Soares6AM2H Economic Activities - Instituto Dom LuizFaculty of Sciences, University of Lisbon - Instituto Dom LuizUniversité LavalFaculty of Sciences and Technology, University of AzoresNational Laboratory for Civil EngineeringCamborne School of Mines, University of Exeter - Institute of Earth Sciences, Pole PortoInstitute of Earth Sciences The potential alkali-silica reactivity (ASR) of volcanic aggregates, especially basalts, remains a source of debate in the scientific community. When evaluating the potentially deleterious character of this type of aggregate, different laboratory testing methods may produce contradictory data; this is particularly evident when using the accelerated mortar bar test (AMBT). In order to better understand such discrepancies, this study applied several methods of characterizing potential aggregate alkali reactivity, including the accelerated mortar bar test (AMBT), petrographic characterization, and the concrete prism test (CPT). Moreover, this study assessed volcanic aggregate samples from sites around the world, including the Azores, Brazil, Canada, the Canary and Hawaiian Islands, Iceland, Japan, Mozambique, New Zealand, Norway, and Turkey. The results obtained contribute to accurately assessing the potential alkali reactivity of volcanic aggregates and enhance the understanding of their different behaviours. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2940Alkali-Silica reactionPetrographyAccelerated expansion testsVolcanic aggregates |
| spellingShingle | S. Medeiros I. Fernandes B. Fournier J.C. Nunes A. Santos-Silva V. Ramos D. Soares Alkali-silica reaction in volcanic rocks: a worldwide comparative approach Materiales de Construccion Alkali-Silica reaction Petrography Accelerated expansion tests Volcanic aggregates |
| title | Alkali-silica reaction in volcanic rocks: a worldwide comparative approach |
| title_full | Alkali-silica reaction in volcanic rocks: a worldwide comparative approach |
| title_fullStr | Alkali-silica reaction in volcanic rocks: a worldwide comparative approach |
| title_full_unstemmed | Alkali-silica reaction in volcanic rocks: a worldwide comparative approach |
| title_short | Alkali-silica reaction in volcanic rocks: a worldwide comparative approach |
| title_sort | alkali silica reaction in volcanic rocks a worldwide comparative approach |
| topic | Alkali-Silica reaction Petrography Accelerated expansion tests Volcanic aggregates |
| url | https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2940 |
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