Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru

The petrographic and petrophysical characteristics of three varieties of ignimbrites used in the architectural heritage of Arequipa (southwest Peru) are analyzed. The modal classification QAFP and TAS diagram discriminate their dacitic nature. Mercury injection porometry revealed very high porosity:...

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Autores principales:	Rosa Bustamante, Patricia Vazquez, Nicanor Prendes
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ignimbrite petrography physico-mechanical properties color cultural heritage Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/69d236fc999d40f9bdbc911874ca43b8
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spelling	oai:doaj.org-article:69d236fc999d40f9bdbc911874ca43b82021-11-25T16:31:50ZProperties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru10.3390/app1122105712076-3417https://doaj.org/article/69d236fc999d40f9bdbc911874ca43b82021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10571https://doaj.org/toc/2076-3417The petrographic and petrophysical characteristics of three varieties of ignimbrites used in the architectural heritage of Arequipa (southwest Peru) are analyzed. The modal classification QAFP and TAS diagram discriminate their dacitic nature. Mercury injection porometry revealed very high porosity: 46.5% for white and beige ignimbrites, and 35.5% for the pink variety. Ignimbrites contain intrusions of vulcanodetrital fragments and vacuoles that influence their predominantly non-linear mechanical behavior. The results of water absorption by capillarity (C) and ultrasound pulse velocity (UPV) demonstrate a slight anisotropy for the beige variety and near isotropy for white and pink ignimbrites, which justify the randomness of the application of the ashlars in the masonry and in the selection of the faces to carve. Surfaces with hollows in the white and beige ignimbrites are the result of the erosion of the acicular pumice that fills the vacuoles.Rosa BustamantePatricia VazquezNicanor PrendesMDPI AGarticleignimbritepetrographyphysico-mechanical propertiescolorcultural heritageTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10571, p 10571 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ignimbrite petrography physico-mechanical properties color cultural heritage Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	ignimbrite petrography physico-mechanical properties color cultural heritage Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Rosa Bustamante Patricia Vazquez Nicanor Prendes Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru
description	The petrographic and petrophysical characteristics of three varieties of ignimbrites used in the architectural heritage of Arequipa (southwest Peru) are analyzed. The modal classification QAFP and TAS diagram discriminate their dacitic nature. Mercury injection porometry revealed very high porosity: 46.5% for white and beige ignimbrites, and 35.5% for the pink variety. Ignimbrites contain intrusions of vulcanodetrital fragments and vacuoles that influence their predominantly non-linear mechanical behavior. The results of water absorption by capillarity (C) and ultrasound pulse velocity (UPV) demonstrate a slight anisotropy for the beige variety and near isotropy for white and pink ignimbrites, which justify the randomness of the application of the ashlars in the masonry and in the selection of the faces to carve. Surfaces with hollows in the white and beige ignimbrites are the result of the erosion of the acicular pumice that fills the vacuoles.
format	article
author	Rosa Bustamante Patricia Vazquez Nicanor Prendes
author_facet	Rosa Bustamante Patricia Vazquez Nicanor Prendes
author_sort	Rosa Bustamante
title	Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru
title_short	Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru
title_full	Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru
title_fullStr	Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru
title_full_unstemmed	Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru
title_sort	properties of the ignimbrites in the architecture of the historical center of arequipa, peru
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/69d236fc999d40f9bdbc911874ca43b8
work_keys_str_mv	AT rosabustamante propertiesoftheignimbritesinthearchitectureofthehistoricalcenterofarequipaperu AT patriciavazquez propertiesoftheignimbritesinthearchitectureofthehistoricalcenterofarequipaperu AT nicanorprendes propertiesoftheignimbritesinthearchitectureofthehistoricalcenterofarequipaperu
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Properties of the Ignimbrites in the Architecture of the Historical Center of Arequipa, Peru

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