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Predicting the Uniaxial Compressive Strength of a Limestone Exposed to High Temperatures by Point Load and Leeb Rebound Hardness Testing

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Predicting the Uniaxial Compressive Strength of a Limestone Exposed to High Temperatures by Point Load and Leeb Rebound Hardness Testing

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dc.contributor.author Garrido De La Torre, Mª Elvira es_ES
dc.contributor.author Petnga, Ferry B. es_ES
dc.contributor.author Martínez Ibáñez, Víctor es_ES
dc.contributor.author Serón Gáñez, José Bernardo es_ES
dc.contributor.author Hidalgo Signes, Carlos es_ES
dc.contributor.author Tomás, Roberto es_ES
dc.date.accessioned 2023-09-21T18:05:57Z
dc.date.available 2023-09-21T18:05:57Z
dc.date.issued 2021-01 es_ES
dc.identifier.issn 0723-2632 es_ES
dc.identifier.uri http://hdl.handle.net/10251/196923
dc.description.abstract [EN] The effect of exposure to high temperature on rock strength is a topic of interest in many engineering fields. In general, rock strength is known to decrease as temperature increases. The most common test used to evaluate the rock strength is the uniaxial compressive strength test (UCS). It can only be carried out in laboratory and presents some limitations in terms of the number, type and preparation of the samples. Such constrains are more evident in case of rocks from historical monuments affected by a fire, where the availability of samples is limited. There are alternatives for an indirect determination of UCS, such as the point load test (PLT), or non-destructive tests such as the Schmidt's hammer, that can also be performed in situ. The aims of this research are: (i) measuring the effect of high temperatures and cooling methods on the strength and hardness of a limestone named Pedra de Borriol widely used in several historic buildings on the E of Spain, and (ii) studying the possibility of indirectly obtaining UCS by means of PLT and Leeb hardness tests (LHT), using Equotip type D. Limestone samples were heated to 105 (standard conditions), 200, 300, 400, 500, 600, 700, 800 and 900 oC and cooled slowly (in air) and quickly (immersed in water). After that, UCS, PLT and LHT tests were performed to evaluate the changes as temperature increases. Results show decreases over 90% in UCS, of between 50 and 70% in PLT index and smaller than 60% in LHT index. Insignificant differences between cooling methods were observed, although slowly cooled samples provide slightly higher values than quickly cooled ones. The results indicate that LHT can be used to indirectly estimate UCS, providing an acceptable prediction. Research on correlating strength parameters in rocks after thermally treated is still scarce. This research novelty provides correlations to predict UCS in historic buildings if affected by a fire, from PLT and non-destructive methods such as LHT whose determination is quicker and easier. es_ES
dc.description.sponsorship Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. es_ES
dc.language Inglés es_ES
dc.publisher Springer-Verlag es_ES
dc.relation.ispartof Rock Mechanics and Rock Engineering es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Limestone es_ES
dc.subject Strength es_ES
dc.subject Hardness es_ES
dc.subject High temperatures es_ES
dc.subject Uniaxial compression strength es_ES
dc.subject Point load test es_ES
dc.subject Hardness Leeb-D value es_ES
dc.subject Historic building es_ES
dc.subject.classification INGENIERIA DEL TERRENO es_ES
dc.title Predicting the Uniaxial Compressive Strength of a Limestone Exposed to High Temperatures by Point Load and Leeb Rebound Hardness Testing es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s00603-021-02647-0 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports es_ES
dc.description.bibliographicCitation Garrido De La Torre, ME.; Petnga, FB.; Martínez Ibáñez, V.; Serón Gáñez, JB.; Hidalgo Signes, C.; Tomás, R. (2021). Predicting the Uniaxial Compressive Strength of a Limestone Exposed to High Temperatures by Point Load and Leeb Rebound Hardness Testing. Rock Mechanics and Rock Engineering. 55(1):1-17. https://doi.org/10.1007/s00603-021-02647-0 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1007/s00603-021-02647-0 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 17 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 55 es_ES
dc.description.issue 1 es_ES
dc.relation.pasarela S\450754 es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
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dc.subject.ods 09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación es_ES


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