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Non destructive assessment of in situ concrete strength: comparison of approaches through an international benchmark

dc.contributor.authorBREYSSE, D.
hal.structure.identifierLaboratoire Matériaux et Durabilité des constructions [LMDC]
dc.contributor.authorBALAYSSAC, Jean-Paul
dc.contributor.authorBIONDI, S.
dc.contributor.authorBOROSNYOI, A.
dc.contributor.authorCANDIGLIOTA, E.
dc.contributor.authorCHIAUZZI, L.
dc.contributor.authorGARNIER, V.
dc.contributor.authorGRANTHAM, M.
dc.contributor.authorGUNES, O.
dc.contributor.authorLUPRANO, V.
dc.contributor.authorMASI, A.
dc.contributor.authorPFISTER, V.
dc.contributor.authorSBARTAI, Z. M.
dc.contributor.authorSZILAGYI, K.
dc.contributor.authorFONTAN, M.
dc.date.accessioned2021-05-14T09:46:41Z
dc.date.available2021-05-14T09:46:41Z
dc.date.issued2017-04
dc.identifier.issn1359-5997
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77031
dc.description.abstractEnStrength assessment of concrete in existing structures is a key issue. Many non destructive techniques (NDT) are available which can provide information about the material condition and several approaches can be used to derive strength estimates from NDT test results. However, common practice suffers from many drawbacks: (a) it is difficult to ascertain the level of accuracy/confidence of concrete strength estimates, (b) one lacks established guidelines for estimating the concrete strength variability, (c) the best way to combine NDT methods and coring remains an open issue. The RILEM TC 249 "Non destructive in situ strength assessment of concrete'' is addressing these problems. A benchmark was carried out in order to compare (a) how experts define and can carry out an NDT investigation program and (b) how experts derive strength values from the NDT measurements. The benchmark was based on synthetic simulations which reproduced a synthetic data set corresponding to a grid of twenty 3 m-high columns defining a single-storey building structure. The comparison of the various strategies and the analysis of results enabled identification of the most influential parameters that define an investigation approach and influence its efficiency and accuracy. A special emphasis was placed on the magnitude of the measurement error. A model of the investigation strategy is proposed, that will be detailed in future guidelines. The reader is invited to refer to a companion paper (Alwash et al. in Mater Struct, 1. doi: 10.1617/s11527-016-0962-x), based on more extensive Monte-Carlo simulations of the same case-study, which analyzes and quantifies the efficiency of the investigation strategies with respect to both average strength and strength variability assessment, in order to draw conclusions based on rational analyses rather than on the element of chance.
dc.language.isoen
dc.publisherSpringer Verlag
dc.title.enNon destructive assessment of in situ concrete strength: comparison of approaches through an international benchmark
dc.typeArticle de revue
dc.identifier.doi10.1617/s11527-017-1009-7
dc.subject.halSciences de l'ingénieur [physics]
bordeaux.journalMaterials and Structures
bordeaux.page133
bordeaux.volume50
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.issue2
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-01847543
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01847543v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materials%20and%20Structures&rft.date=2017-04&rft.volume=50&rft.issue=2&rft.spage=133&rft.epage=133&rft.eissn=1359-5997&rft.issn=1359-5997&rft.au=BREYSSE,%20D.&BALAYSSAC,%20Jean-Paul&BIONDI,%20S.&BOROSNYOI,%20A.&CANDIGLIOTA,%20E.&rft.genre=article


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