The spalling decay of building bioclastic limestones of Provence (South East of France): From clay minerals swelling to hydric dilation.
Medieval historical monuments of the Provence region (South East of France) were erected with bioclastic limestones and display different sensitivities to spalling decay. The present study aims at understanding the physical processes at play as well as the internal properties governing its intensity...
| Publicado en: | Journal of Cultural Heritage Vol. 17; pp. 53 - 61 |
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| Autores principales: | , , , , , |
| Formato: | Artículo |
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Elsevier B.V.
Jan2016
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=112678197&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 112678197 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 12962074 KK8 jtl: Journal of Cultural Heritage issn: 12962074 maglogo: N pubinfo: dt: Jan2016 vid: 17 pid: 467 pub: Elsevier B.V. artinfo: ui: 112678197 10.1016/j.culher.2015.05.004 ppf: 53 ppct: 8 formats: tig: atl: The spalling decay of building bioclastic limestones of Provence (South East of France): From clay minerals swelling to hydric dilation. aug: au: Berthonneau, Jeremie Bromblet, Philippe Cherblanc, Fabien Ferrage, Eric Vallet, Jean-Marc Grauby, Olivier affil: Aix-Marseille Université, CNRS, CINaM UMR 7325, campus de Luminy, 13288 Marseille, France CICRP Belle de Mai, 21, rue Guibal, 13003 Marseille, France LMGC, CNRS, Université Montpellier 2, place Eugène-Bataillon, 34000 Montpellier, France IC2MP, CNRS, Université de Poitiers, 40, avenue du Recteur-Pineau, 86022 Poitiers cedex, France su: Monuments Petrology Petrophysics Mineralogy Fluid mechanics Clay Partial fractions X-ray spectrometers sug: subj: Monuments Petrology Petrophysics Mineralogy Fluid mechanics Clay Partial fractions X-ray spectrometers keyword: Building limestones Clay minerals swelling Dilation kinetic Hydric dilation Hygric dilation X-ray diffraction Spalling decay Transmission electron microscopy ab: Medieval historical monuments of the Provence region (South East of France) were erected with bioclastic limestones and display different sensitivities to spalling decay. The present study aims at understanding the physical processes at play as well as the internal properties governing its intensity. Limestones of contrasting sensitivity to spalling were compared to a reference type, unaffected by this decay, by means of petrography, petrophysic, mineralogy, and hydromechanics. The obtained results highlighted that the various sensitivities can be explained by the deformation recorded during water content variation (hydric dilation). A clay fraction was systematically detected within the mineralogical composition except for the reference material, and some swelling layers were identified in montmorillonite/glauconite mixed layer minerals. A specific quantification procedure based on the combination of transmission electron microscopy coupled to an energy-dispersive X-ray spectrometer (TEM–EDX) and profile modeling of X-ray diffraction patterns was applied. A strong relationship between swelling layer content and hydric dilation of limestones was evidenced and corroborated the spalling sensitivity. Further interpretation of results showed that swelling layers localization within the texture significantly influence hydric dilation kinetics. Eventually, a mechanical softening was measured after water saturation. This behavior seems unrelated to the clay mineral content and its relative influence on spalling should be examined. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2016 holdings: @attributes: islocal: N |
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