Influence of the freeze-thaw cycles on the physical and mechanical properties of granites
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/52686 |
Resumo: | Stone masonry buildings provide evidence of the cultural and historical values at the time. Therefore, it is important to preserve the stone of these buildings to harmful environment conditions like freeze-thaw and salt crystallization cycles, air pollution, and excessive and frequent rain or snowfall, which can lead to decay processes that endanger the future of architectural heritage. Thus, it is important to understand how environmental actions act on the physical and mechanical properties of building stones. In Portugal, the most used building stone, particularly in the north region, is granite, both in the vernacular and historical buildings. Therefore, this research aims at evaluating the performance of different types of granite, characteristic of the northeastern region of Portugal to the action of freeze-thaw cycles, for which this environmental action is relevant, given the wide temperature range and the possibility of occurrence of negative temperatures. Frost resistance is important for the durability of the building stone since the freezing-thawing cycles of the water inside the stone pores result in the development of internal stresses, which can lead to cracking and progressive desegregation of material. The analysis of the influence of the freeze and thaw environmental action in the granites belonging to Portuguese vernacular buildings was carried out, based on an enlarged experimental program to obtain the physical and mechanical properties of distinct types of granites before and after the freeze and thaw cycles. This paper presents the experimental campaign of freeze-thaw cycles on three types of granites and discusses the main results analyzing the standard damage indexes associated with the weathering process. Additionally, an analysis of the physical and mechanical properties and the variation of the ultrasonic pulse velocity (UPV) are provided. The freeze-thaw tests showed a considerable influence on the physical properties of granites. The UPV, dry mass, and compressive strength decrease a |
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Influence of the freeze-thaw cycles on the physical and mechanical properties of granitesGraniteFreeze and thawing cyclesPhysical and mechanical propertiesUltrasonic pulse velocityScience & TechnologyStone masonry buildings provide evidence of the cultural and historical values at the time. Therefore, it is important to preserve the stone of these buildings to harmful environment conditions like freeze-thaw and salt crystallization cycles, air pollution, and excessive and frequent rain or snowfall, which can lead to decay processes that endanger the future of architectural heritage. Thus, it is important to understand how environmental actions act on the physical and mechanical properties of building stones. In Portugal, the most used building stone, particularly in the north region, is granite, both in the vernacular and historical buildings. Therefore, this research aims at evaluating the performance of different types of granite, characteristic of the northeastern region of Portugal to the action of freeze-thaw cycles, for which this environmental action is relevant, given the wide temperature range and the possibility of occurrence of negative temperatures. Frost resistance is important for the durability of the building stone since the freezing-thawing cycles of the water inside the stone pores result in the development of internal stresses, which can lead to cracking and progressive desegregation of material. The analysis of the influence of the freeze and thaw environmental action in the granites belonging to Portuguese vernacular buildings was carried out, based on an enlarged experimental program to obtain the physical and mechanical properties of distinct types of granites before and after the freeze and thaw cycles. This paper presents the experimental campaign of freeze-thaw cycles on three types of granites and discusses the main results analyzing the standard damage indexes associated with the weathering process. Additionally, an analysis of the physical and mechanical properties and the variation of the ultrasonic pulse velocity (UPV) are provided. The freeze-thaw tests showed a considerable influence on the physical properties of granites. The UPV, dry mass, and compressive strength decrease aThis work has been financially supported by the research project Seismic V- Vernacular seismic culture in Portugal (PTDC/ATP-AQI/3934/2012), funded by the Portuguese Foundation for Science and Technology.info:eu-repo/semantics/publishedVersionAmerican Society of Civil Engineers (ASCE)Universidade do MinhoMartins, L.Vasconcelos, GraçaLourenço, Paulo B.Palha, Carlos Alberto Oliveira Fernandes20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/52686eng0899-156110.1061/(ASCE)MT.1943-5533.0001488info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:48:56Zoai:repositorium.sdum.uminho.pt:1822/52686Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:47:17.517095Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Influence of the freeze-thaw cycles on the physical and mechanical properties of granites |
title |
Influence of the freeze-thaw cycles on the physical and mechanical properties of granites |
spellingShingle |
Influence of the freeze-thaw cycles on the physical and mechanical properties of granites Martins, L. Granite Freeze and thawing cycles Physical and mechanical properties Ultrasonic pulse velocity Science & Technology |
title_short |
Influence of the freeze-thaw cycles on the physical and mechanical properties of granites |
title_full |
Influence of the freeze-thaw cycles on the physical and mechanical properties of granites |
title_fullStr |
Influence of the freeze-thaw cycles on the physical and mechanical properties of granites |
title_full_unstemmed |
Influence of the freeze-thaw cycles on the physical and mechanical properties of granites |
title_sort |
Influence of the freeze-thaw cycles on the physical and mechanical properties of granites |
author |
Martins, L. |
author_facet |
Martins, L. Vasconcelos, Graça Lourenço, Paulo B. Palha, Carlos Alberto Oliveira Fernandes |
author_role |
author |
author2 |
Vasconcelos, Graça Lourenço, Paulo B. Palha, Carlos Alberto Oliveira Fernandes |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Martins, L. Vasconcelos, Graça Lourenço, Paulo B. Palha, Carlos Alberto Oliveira Fernandes |
dc.subject.por.fl_str_mv |
Granite Freeze and thawing cycles Physical and mechanical properties Ultrasonic pulse velocity Science & Technology |
topic |
Granite Freeze and thawing cycles Physical and mechanical properties Ultrasonic pulse velocity Science & Technology |
description |
Stone masonry buildings provide evidence of the cultural and historical values at the time. Therefore, it is important to preserve the stone of these buildings to harmful environment conditions like freeze-thaw and salt crystallization cycles, air pollution, and excessive and frequent rain or snowfall, which can lead to decay processes that endanger the future of architectural heritage. Thus, it is important to understand how environmental actions act on the physical and mechanical properties of building stones. In Portugal, the most used building stone, particularly in the north region, is granite, both in the vernacular and historical buildings. Therefore, this research aims at evaluating the performance of different types of granite, characteristic of the northeastern region of Portugal to the action of freeze-thaw cycles, for which this environmental action is relevant, given the wide temperature range and the possibility of occurrence of negative temperatures. Frost resistance is important for the durability of the building stone since the freezing-thawing cycles of the water inside the stone pores result in the development of internal stresses, which can lead to cracking and progressive desegregation of material. The analysis of the influence of the freeze and thaw environmental action in the granites belonging to Portuguese vernacular buildings was carried out, based on an enlarged experimental program to obtain the physical and mechanical properties of distinct types of granites before and after the freeze and thaw cycles. This paper presents the experimental campaign of freeze-thaw cycles on three types of granites and discusses the main results analyzing the standard damage indexes associated with the weathering process. Additionally, an analysis of the physical and mechanical properties and the variation of the ultrasonic pulse velocity (UPV) are provided. The freeze-thaw tests showed a considerable influence on the physical properties of granites. The UPV, dry mass, and compressive strength decrease a |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2016-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/52686 |
url |
http://hdl.handle.net/1822/52686 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0899-1561 10.1061/(ASCE)MT.1943-5533.0001488 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
American Society of Civil Engineers (ASCE) |
publisher.none.fl_str_mv |
American Society of Civil Engineers (ASCE) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133045831237633 |