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Article: Experimental study on bond behavior of new type cement grouted GFRP bolts

TitleExperimental study on bond behavior of new type cement grouted GFRP bolts
Authors
KeywordsAverage Bond Strength
Bearing Capacity
Critical Bond Length
Failure Mode
Glass Fiber Reinforced Polymer (Gfrp) Bolt
Modified Pull-Out Test
Rock Mechanics
Issue Date2006
Citation
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2006, v. 25 n. 10, p. 2108-2114 How to Cite?
AbstractBolt is widely used in slope engineering, tunnel, and large cave supporting as well as restoration of engineering structure. It can improve the strength and stability of ground, rock mass, and other structures. The traditional steel bolt has some disadvantages, such as easy corrosion, heavy weight, and difficult operation. Glass fiber reinforced polymer (GFRP) is impervious to chloride ion and low pH chemical attack, and its tensile strength is much larger than steel while with lighter weight. Those advantages make it a better alternative in some fields of engineering. To utilize GFRP bars as rock bolt, some aspects of its behavior, such as bond strength in mortar, bearing capacity, and bond stress distribution along its interface, have to be examined. This paper presents the research on bonding behavior of anchor bolt made of GFRP bar, and concrete block is used to model rock mass in laboratory. The modified pull-out tests were conducted on selected GFRP bars and compared with steel ones that were grouted with mortar in concrete blocks. The diameters of the GFRP test samples are 10, 13, 16 mm respectively, and the steel one is 25 mm. There total 24 samples are tested. The surface of the GFRP bar is sprayed with sand and wound with fibers. The compressive strength of concrete which is used to simulate the rock mass is 58.3 MPa; and the compressive strength of two kinds of mortars are 41.5 and 55.5 MPa, respectively. According to the results, bond characteristics of mortar grouted GFRP rock bolts such as failure modes, bearing capacity, critical bond length, average bond strength, and comparison with steel bolt were evaluated. The research will give a support to the application of GFRP bolt.
Persistent Identifierhttp://hdl.handle.net/10722/175576
ISSN
2015 SCImago Journal Rankings: 1.073
References

 

DC FieldValueLanguage
dc.contributor.authorJia, Xen_US
dc.contributor.authorYuan, Yen_US
dc.contributor.authorLee, CFen_US
dc.date.accessioned2012-11-26T08:59:46Z-
dc.date.available2012-11-26T08:59:46Z-
dc.date.issued2006en_US
dc.identifier.citationYanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2006, v. 25 n. 10, p. 2108-2114en_US
dc.identifier.issn1000-6915en_US
dc.identifier.urihttp://hdl.handle.net/10722/175576-
dc.description.abstractBolt is widely used in slope engineering, tunnel, and large cave supporting as well as restoration of engineering structure. It can improve the strength and stability of ground, rock mass, and other structures. The traditional steel bolt has some disadvantages, such as easy corrosion, heavy weight, and difficult operation. Glass fiber reinforced polymer (GFRP) is impervious to chloride ion and low pH chemical attack, and its tensile strength is much larger than steel while with lighter weight. Those advantages make it a better alternative in some fields of engineering. To utilize GFRP bars as rock bolt, some aspects of its behavior, such as bond strength in mortar, bearing capacity, and bond stress distribution along its interface, have to be examined. This paper presents the research on bonding behavior of anchor bolt made of GFRP bar, and concrete block is used to model rock mass in laboratory. The modified pull-out tests were conducted on selected GFRP bars and compared with steel ones that were grouted with mortar in concrete blocks. The diameters of the GFRP test samples are 10, 13, 16 mm respectively, and the steel one is 25 mm. There total 24 samples are tested. The surface of the GFRP bar is sprayed with sand and wound with fibers. The compressive strength of concrete which is used to simulate the rock mass is 58.3 MPa; and the compressive strength of two kinds of mortars are 41.5 and 55.5 MPa, respectively. According to the results, bond characteristics of mortar grouted GFRP rock bolts such as failure modes, bearing capacity, critical bond length, average bond strength, and comparison with steel bolt were evaluated. The research will give a support to the application of GFRP bolt.en_US
dc.languageengen_US
dc.relation.ispartofYanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineeringen_US
dc.subjectAverage Bond Strengthen_US
dc.subjectBearing Capacityen_US
dc.subjectCritical Bond Lengthen_US
dc.subjectFailure Modeen_US
dc.subjectGlass Fiber Reinforced Polymer (Gfrp) Bolten_US
dc.subjectModified Pull-Out Testen_US
dc.subjectRock Mechanicsen_US
dc.titleExperimental study on bond behavior of new type cement grouted GFRP boltsen_US
dc.typeArticleen_US
dc.identifier.emailLee, CF: leecf@hkucc.hku.hken_US
dc.identifier.authorityLee, CF=rp00139en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-33845351254en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33845351254&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume25en_US
dc.identifier.issue10en_US
dc.identifier.spage2108en_US
dc.identifier.epage2114en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridJia, X=36799295800en_US
dc.identifier.scopusauthoridYuan, Y=7402708611en_US
dc.identifier.scopusauthoridLee, CF=8068602600en_US

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