Evaluation of mechanical weakening of calcarenite building stones due to environmental relative humidity using the vapour equilibrium technique
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Campo DC | Valor | Idioma |
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dc.contributor | Ingeniería del Terreno y sus Estructuras (InTerEs) | es_ES |
dc.contributor.author | Rabat, Álvaro | - |
dc.contributor.author | Tomás, Roberto | - |
dc.contributor.author | Cano, Miguel | - |
dc.contributor.other | Universidad de Alicante. Departamento de Ingeniería Civil | es_ES |
dc.date.accessioned | 2020-10-14T12:24:41Z | - |
dc.date.available | 2020-10-14T12:24:41Z | - |
dc.date.issued | 2020-12-05 | - |
dc.identifier.citation | Engineering Geology. 2020, 278: 105849. https://doi.org/10.1016/j.enggeo.2020.105849 | es_ES |
dc.identifier.issn | 0013-7952 (Print) | - |
dc.identifier.issn | 1872-6917 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/109706 | - |
dc.description.abstract | Previous studies have evaluated the water-weakening effect of rock materials after immersion in water during different periods of time. However, the water transference between the environment and the building stones frequently occurs in vapour form when changes in the relative humidity of the air involve little variations in moisture content of stones. In this sense, the novelty of this work lies in assessing the impact of the environmental relative humidity (RH) on Unconfined Compressive Strength (UCS), Young's modulus (Est), Brazilian Tensile Strength (BTS) and Point Load Strength Index (Is(50)) of three calcarenite building stones. To this aim, calcarenite specimens were exposed to five different environments with RH values ranging from 10 to 93% which were devised in laboratory through a novel modified Vapour Equilibrium Technique (VET) by using water-glycerol solutions at different concentrations and then, they were mechanically tested. The results indicated that, despite the water content (w) and the degree of saturation (Sr) inside the pore network of calcarenites were relatively small for all RH environments (w = 0.03–1.79% and Sr = 0.2–35.6%), important reductions of UCS (28.2–34.7%), Est (20.0–31.3%), BTS (17.0–41.3%) and Is(50) (23.9–37.6%) were found when the RH varied from 10 to 93%. Furthermore, negative linear relationships were established between the values of the mechanical properties and the environmental RH while negative tri-parametric exponential functions were proposed between the mechanical parameters and w. In addition, the mechanisms involved in the observed behaviour were discussed and relationships between the different mechanical properties were also proposed. | es_ES |
dc.description.sponsorship | This research was supported by the Vice-rector of Research and Knowledge Transfer of the University of Alicante through predoctoral grant FPUUA53-2018 and projects UAUSTI18-21, UAUSTI19-25, UAEEBB2018-09 and GRE18-15 and by the Spanish Ministry of Economy and Competitiveness (MINECO) through the project TEC2017-85244-C2-1-P. | es_ES |
dc.language | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | © 2020 Elsevier B.V. | es_ES |
dc.subject | Environmental relative humidity | es_ES |
dc.subject | Mechanical properties | es_ES |
dc.subject | Calcarenite building stones | es_ES |
dc.subject | Water content | es_ES |
dc.subject.other | Ingeniería del Terreno | es_ES |
dc.title | Evaluation of mechanical weakening of calcarenite building stones due to environmental relative humidity using the vapour equilibrium technique | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.peerreviewed | si | es_ES |
dc.identifier.doi | 10.1016/j.enggeo.2020.105849 | - |
dc.relation.publisherversion | https://doi.org/10.1016/j.enggeo.2020.105849 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TEC2017-85244-C2-1-P | - |
Aparece en las colecciones: | INV - INTERES - Artículos de Revistas |
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Rabat_etal_2020_EngGeol_final.pdf | Versión final (acceso restringido) | 18,84 MB | Adobe PDF | Abrir Solicitar una copia |
Rabat_etal_2020_EngGeol_accepted.pdf | Accepted Manuscript (acceso abierto) | 3,45 MB | Adobe PDF | Abrir Vista previa |
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