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Article: Fracture toughness of plain concrete made of crushed granite aggregate

TitleFracture toughness of plain concrete made of crushed granite aggregate
Authors
KeywordsAggregate size
Compressive strength
Crushed granite
Fracture toughness
Plain concrete
Issue Date2011
PublisherHong Kong Institution of Engineers. The Journal's web site is located at http://www.hkie.org.hk/html/publications/transactions/index.asp
Citation
Transactions of the Hong Kong Institution Of Engineers, 2011, v. 18 n. 2, p. 6-12 How to Cite?
AbstractAn experimental investigation on the fracture toughness of plain concrete using the threepoint bending tests proposed by RILEM was carried out. A series of central-notched concrete beams made of local ingredients and with different concrete strength f cu and aggregate sizes (D max = 10 mm and D max = 20 mm) were tested. From the experimental results, the fracture parameters, namely the critical stress intensity factor KIC , the critical notch depth ac and the critical energy release rate G IC for the effective crack model and the fracture energy G F and the characteristic length lch for the fictitious model were determined and presented quantitatively. The experimental results indicate that K IC and G F increase as the compressive strength f cu increases for both aggregate sizes; at the same mix proportion and aggregate content, concrete with larger aggregates has a lower compressive strength f cu and elastic modulus E but a higher fracture resistance than that with smaller aggregates. Simple empirical formulae for the determination of fracture parameters were developed, providing a quantitative reference for the identification of the fracture parameters of normal and high-strength concrete with crushed granite aggregates.
Persistent Identifierhttp://hdl.handle.net/10722/137226
ISSN
2015 SCImago Journal Rankings: 0.145
References

 

DC FieldValueLanguage
dc.contributor.authorChen, HHen_HK
dc.contributor.authorSu, RKLen_HK
dc.contributor.authorKwan, AKHen_HK
dc.date.accessioned2011-08-26T14:21:34Z-
dc.date.available2011-08-26T14:21:34Z-
dc.date.issued2011en_HK
dc.identifier.citationTransactions of the Hong Kong Institution Of Engineers, 2011, v. 18 n. 2, p. 6-12en_HK
dc.identifier.issn1023-697Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/137226-
dc.description.abstractAn experimental investigation on the fracture toughness of plain concrete using the threepoint bending tests proposed by RILEM was carried out. A series of central-notched concrete beams made of local ingredients and with different concrete strength f cu and aggregate sizes (D max = 10 mm and D max = 20 mm) were tested. From the experimental results, the fracture parameters, namely the critical stress intensity factor KIC , the critical notch depth ac and the critical energy release rate G IC for the effective crack model and the fracture energy G F and the characteristic length lch for the fictitious model were determined and presented quantitatively. The experimental results indicate that K IC and G F increase as the compressive strength f cu increases for both aggregate sizes; at the same mix proportion and aggregate content, concrete with larger aggregates has a lower compressive strength f cu and elastic modulus E but a higher fracture resistance than that with smaller aggregates. Simple empirical formulae for the determination of fracture parameters were developed, providing a quantitative reference for the identification of the fracture parameters of normal and high-strength concrete with crushed granite aggregates.en_HK
dc.languageengen_US
dc.publisherHong Kong Institution of Engineers. The Journal's web site is located at http://www.hkie.org.hk/html/publications/transactions/index.aspen_HK
dc.relation.ispartofTransactions of the Hong Kong Institution of Engineersen_HK
dc.subjectAggregate sizeen_HK
dc.subjectCompressive strengthen_HK
dc.subjectCrushed graniteen_HK
dc.subjectFracture toughnessen_HK
dc.subjectPlain concreteen_HK
dc.titleFracture toughness of plain concrete made of crushed granite aggregateen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1023-697X&volume=18&issue=2&spage=6&epage=12&date=2011&atitle=Fracture+toughness+of+plain+concrete+made+of+crushed+granite+aggregateen_US
dc.identifier.emailSu, RKL:klsu@hkucc.hku.hken_HK
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_HK
dc.identifier.authoritySu, RKL=rp00072en_HK
dc.identifier.authorityKwan, AKH=rp00127en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-80155148109en_HK
dc.identifier.hkuros189402en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80155148109&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume18en_HK
dc.identifier.issue2en_HK
dc.identifier.spage6en_HK
dc.identifier.epage12en_HK
dc.publisher.placeHong Kongen_HK
dc.identifier.scopusauthoridChen, HH=53983592200en_HK
dc.identifier.scopusauthoridSu, RKL=7102627096en_HK
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK

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