Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil
Main Author: | |
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Publication Date: | 2022 |
Other Authors: | , |
Format: | Article |
Language: | eng |
Source: | Anais da Academia Brasileira de Ciências (Online) |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000701101 |
Summary: | Abstract The object of this study can be found among the various ornamental rocks used in historic buildings in the city of Rio de Janeiro. It is a degraded Leptinito Gneiss that makes up one of the support columns of the kitchen of the Mosteiro de São Bento (Monastery of Saint Benedict) in Rio de Janeiro. The main aim of the present study is to identify the causes of the high degree of degradation of said column. Non-destructive tests were performed, and laboratory evaluation of the disintegrated fragments may help restore and conserve this column in the future. Results obtained from the tests performed on the altered column were compared to those obtained from another column in the monastery, also built in Leptinito, which is more intact and is a sound Leptinito Gneiss. The results showed that degradation of the column is caused by the crystallization of salts (halite) inside the rock, which is reducing its mechanical strength and causing an imminent risk of collapse. |
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Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, BrazilEfflorescenceLeptinito Gneissornamental rockssalt-induced changesAbstract The object of this study can be found among the various ornamental rocks used in historic buildings in the city of Rio de Janeiro. It is a degraded Leptinito Gneiss that makes up one of the support columns of the kitchen of the Mosteiro de São Bento (Monastery of Saint Benedict) in Rio de Janeiro. The main aim of the present study is to identify the causes of the high degree of degradation of said column. Non-destructive tests were performed, and laboratory evaluation of the disintegrated fragments may help restore and conserve this column in the future. Results obtained from the tests performed on the altered column were compared to those obtained from another column in the monastery, also built in Leptinito, which is more intact and is a sound Leptinito Gneiss. The results showed that degradation of the column is caused by the crystallization of salts (halite) inside the rock, which is reducing its mechanical strength and causing an imminent risk of collapse.Academia Brasileira de Ciências2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000701101Anais da Academia Brasileira de Ciências v.94 suppl.3 2022reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-3765202220211117info:eu-repo/semantics/openAccessFELIX,CARLA C.MANSUR,KÁTIA L.RIBEIRO,ROBERTO CARLOS C.eng2022-11-17T00:00:00Zoai:scielo:S0001-37652022000701101Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2022-11-17T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false |
dc.title.none.fl_str_mv |
Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil |
title |
Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil |
spellingShingle |
Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil FELIX,CARLA C. Efflorescence Leptinito Gneiss ornamental rocks salt-induced changes |
title_short |
Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil |
title_full |
Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil |
title_fullStr |
Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil |
title_full_unstemmed |
Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil |
title_sort |
Study of salt-induced changes in the Leptinito Gneiss of a column from the Mosteiro de São Bento in Rio de Janeiro, Brazil |
author |
FELIX,CARLA C. |
author_facet |
FELIX,CARLA C. MANSUR,KÁTIA L. RIBEIRO,ROBERTO CARLOS C. |
author_role |
author |
author2 |
MANSUR,KÁTIA L. RIBEIRO,ROBERTO CARLOS C. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
FELIX,CARLA C. MANSUR,KÁTIA L. RIBEIRO,ROBERTO CARLOS C. |
dc.subject.por.fl_str_mv |
Efflorescence Leptinito Gneiss ornamental rocks salt-induced changes |
topic |
Efflorescence Leptinito Gneiss ornamental rocks salt-induced changes |
description |
Abstract The object of this study can be found among the various ornamental rocks used in historic buildings in the city of Rio de Janeiro. It is a degraded Leptinito Gneiss that makes up one of the support columns of the kitchen of the Mosteiro de São Bento (Monastery of Saint Benedict) in Rio de Janeiro. The main aim of the present study is to identify the causes of the high degree of degradation of said column. Non-destructive tests were performed, and laboratory evaluation of the disintegrated fragments may help restore and conserve this column in the future. Results obtained from the tests performed on the altered column were compared to those obtained from another column in the monastery, also built in Leptinito, which is more intact and is a sound Leptinito Gneiss. The results showed that degradation of the column is caused by the crystallization of salts (halite) inside the rock, which is reducing its mechanical strength and causing an imminent risk of collapse. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000701101 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000701101 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0001-3765202220211117 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
dc.source.none.fl_str_mv |
Anais da Academia Brasileira de Ciências v.94 suppl.3 2022 reponame:Anais da Academia Brasileira de Ciências (Online) instname:Academia Brasileira de Ciências (ABC) instacron:ABC |
instname_str |
Academia Brasileira de Ciências (ABC) |
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ABC |
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ABC |
reponame_str |
Anais da Academia Brasileira de Ciências (Online) |
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Anais da Academia Brasileira de Ciências (Online) |
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Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC) |
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||aabc@abc.org.br |
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1754302872852365312 |