About: Electrical resistivity and ultrasonic measurements during sequential fracture test of cementitious composite

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About: Electrical resistivity and ultrasonic measurements during sequential fracture test of cementitious composite Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_33.pdfhttp://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_33.pdf
Description	Cracks in cover of reinforced and pre-stressed concrete structures significantly influence the ingress of deleterious species causing decrease in durability of these structures. The paper is focused on the effect of fracture process on two selected physical parameters of concrete – the electrical resistivity and the ultrasonic pulse passing time – which might be employed as the quality indicator of concrete cover within (nondestructive) procedure(s) of assessment of the structural durability. The concrete electrical resistivity and ultrasonic passing time were investigated here with respect to two variants of treatment of the test specimens’ surface (the pre-dried surface and the wet surface). Test configuration of three-point bending of notched beam was utilized to control the crack propagation; the fracture process passed through several loading–unloading sequences between which the electrical resistivity and ultrasonic passing time readings over the fractured region were performed. Equivalent elastic crack model was used for estimation of the fracture advance (described via the effective crack length) at the loading stages corresponding to the resistivity and ultrasonic measurements. Relationships between changes of both the concrete resistivity and ultrasonic pulse passing time and the effective crack length is determined and discussed. Cracks in cover of reinforced and pre-stressed concrete structures significantly influence the ingress of deleterious species causing decrease in durability of these structures. The paper is focused on the effect of fracture process on two selected physical parameters of concrete – the electrical resistivity and the ultrasonic pulse passing time – which might be employed as the quality indicator of concrete cover within (nondestructive) procedure(s) of assessment of the structural durability. The concrete electrical resistivity and ultrasonic passing time were investigated here with respect to two variants of treatment of the test specimens’ surface (the pre-dried surface and the wet surface). Test configuration of three-point bending of notched beam was utilized to control the crack propagation; the fracture process passed through several loading–unloading sequences between which the electrical resistivity and ultrasonic passing time readings over the fractured region were performed. Equivalent elastic crack model was used for estimation of the fracture advance (described via the effective crack length) at the loading stages corresponding to the resistivity and ultrasonic measurements. Relationships between changes of both the concrete resistivity and ultrasonic pulse passing time and the effective crack length is determined and discussed. (en)
Title	Electrical resistivity and ultrasonic measurements during sequential fracture test of cementitious composite Electrical resistivity and ultrasonic measurements during sequential fracture test of cementitious composite (en)
skos:prefLabel	Electrical resistivity and ultrasonic measurements during sequential fracture test of cementitious composite Electrical resistivity and ultrasonic measurements during sequential fracture test of cementitious composite (en)
skos:notation	RIV/61989100:27120/14:86090174!RIV15-MSM-27120___
http://linked.open...avai/riv/aktivita	V
http://linked.open...avai/riv/aktivity	V
http://linked.open...iv/cisloPeriodika	October
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Pieszka, Daniel Žídek, Libor Veselý, Václav Konečný, Petr Lehner, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta stavební
http://linked.open...dnocenehoVysledku	14076
http://linked.open...ai/riv/idVysledku	RIV/61989100:27120/14:86090174
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Ultrasound pulse passing time; Three-point bending test; Moisture; Electrical resistivity; Effective crack length; Cementitious composite (en)
http://linked.open.../riv/klicoveSlovo	Effective crack length Ultrasound pulse passing time Three-point bending test Moisture Cementitious composite Electrical resistivity
http://linked.open...odStatuVydavatele	IT - Italská republika
http://linked.open...ontrolniKodProRIV	[A70BCD9D7EB9]
http://linked.open...i/riv/nazevZdroje	Frattura ed Integrita Strutturale
http://linked.open...in/vavai/riv/obor	JM
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	30
http://linked.open...iv/tvurceVysledku	Konečný, Petr Veselý, Václav Žídek, Libor Lehner, Petr Pieszka, Daniel
issn	1971-8993
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.3221/IGF-ESIS.30.33
http://localhost/t...ganizacniJednotka	27120

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