Advanced Evaluation of the Freeze–Thaw Damage of Concrete Based on the Fracture Tests

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dc.contributor.authorKucharczyková, Barbaracs
dc.contributor.authorŠimonová, Hanacs
dc.contributor.authorKocáb, Daliborcs
dc.contributor.authorTopolář, Liborcs
dc.coverage.issue21cs
dc.coverage.volume14cs
dc.date.accessioned2021-10-30T14:54:28Z
dc.date.available2021-10-30T14:54:28Z
dc.date.issued2021-10-25cs
dc.description.abstractThis paper presents the results of an experimental program aimed at the assessment of the freeze–thaw (F–T) resistance of concrete based on the evaluation of fracture tests accompanied by acoustic emission measurements. Two concretes of similar mechanical characteristics were manufactured for the experiment. The main difference between the C1 and C2 concrete was in the total number of air voids and in the A300 parameter, where both parameters were higher for C1 by about 35% and 52%, respectively. The evaluation of the fracture characteristics was performed on the basis of experimentally recorded load–deflection and load–crack mouth opening displacement diagrams using two different approaches: linear fracture mechanics completed with the effective crack model and the double-K model. The results show that both approaches gave similar results, especially if the nonlinear behavior before the peak load was considered. According to the results, it can be stated that continuous AE measurement is beneficial for the assessment of the extent of concrete deterioration, and it suitably supplements the fracture test evaluation. A comparison of the results of fracture tests with the resonance method and splitting tensile strength test shows that all testing methods led to the same conclusion, i.e., the C1 concrete was more F–T-resistant than C2. However, the fracture test evaluation provided more detailed information about the internal structure deterioration due to the F–T exposure.en
dc.formattextcs
dc.format.extent1-22cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2021, vol. 14, issue 21, p. 1-22.en
dc.identifier.doi10.3390/ma14216378cs
dc.identifier.issn1996-1944cs
dc.identifier.other172880cs
dc.identifier.urihttp://hdl.handle.net/11012/201798
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/14/21/6378cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectfreeze–thawen
dc.subjectfractureen
dc.subjecttoughnessen
dc.subjectenergyen
dc.subjectdouble-Ken
dc.subjectcrack extensionen
dc.subjectcrack openingen
dc.subjectacoustic emissionen
dc.subjectRMSen
dc.titleAdvanced Evaluation of the Freeze–Thaw Damage of Concrete Based on the Fracture Testsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-172880en
sync.item.dbtypeVAVen
sync.item.insts2021.11.26 08:54:49en
sync.item.modts2021.11.26 08:15:11en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav stavebního zkušebnictvícs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav stavební mechanikycs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav fyzikycs
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