Bond behavior of fiber reinforced polymer bars under direct pullout conditions

Achillides, Z; Pilakoutas, K

dc.contributor.author	Achillides, Z	en
dc.contributor.author	Pilakoutas, K	en
dc.date.accessioned	2014-03-01T01:19:58Z
dc.date.available	2014-03-01T01:19:58Z
dc.date.issued	2004	en
dc.identifier.issn	1090-0268	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15787
dc.subject	Bars	en
dc.subject	Bonding strength	en
dc.subject	Concrete	en
dc.subject	Fiber reinforced polymers	en
dc.subject	Pull-out resistance	en
dc.subject	Steel	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Mechanics	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.other	Bond strength (materials)	en
dc.subject.other	Compressive strength	en
dc.subject.other	Concretes	en
dc.subject.other	Epoxy resins	en
dc.subject.other	Fiber reinforced materials	en
dc.subject.other	Polymers	en
dc.subject.other	Steel	en
dc.subject.other	Structural design	en
dc.subject.other	Fiber reinforced polymers	en
dc.subject.other	Pull-out resistance	en
dc.subject.other	Structural elements	en
dc.subject.other	Structural problems	en
dc.subject.other	Bars (metal)	en
dc.title	Bond behavior of fiber reinforced polymer bars under direct pullout conditions	en
heal.type	journalArticle	en
heal.identifier.primary	10.1061/(ASCE)1090-0268(2004)8:2(173)	en
heal.identifier.secondary	http://dx.doi.org/10.1061/(ASCE)1090-0268(2004)8:2(173)	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	This paper examines the behavior of Eurocrete fiber-reinforced polymer (FRP) bars (glass, carbon, aramid, and hybrid) in concrete under direct pullout conditions. More than 130 cube specimens were tested in direct pullout where no splitting was allowed to develop. In normal concrete, the mode of bond failure of FRP bars was found to differ substantially from that of deformed steel bars because of damage to the resin rich surface of the bar when pullout takes place. Bond strengths developed by carbon fiber-reinforced polymer and glass fiber-reinforced polymer bars appear to be very similar and just below what is expected from deformed steel bars under similar experimental conditions. The load slip curves highlight some of the fundamental differences between steel and FRP materials. This paper reports in detail on the influence of various parameters that affect bond strength and development such as the embedment length, type, shape, surface characteristics, and diameter of the bar as well as concrete strength. The testing arrangement is also shown to influence bond strength because of the ""wedging effect"" of the bars.	en
heal.publisher	ASCE-AMER SOC CIVIL ENGINEERS	en
heal.journalName	Journal of Composites for Construction	en
dc.identifier.doi	10.1061/(ASCE)1090-0268(2004)8:2(173)	en
dc.identifier.isi	ISI:000220572600009	en
dc.identifier.volume	8	en
dc.identifier.issue	2	en
dc.identifier.spage	173	en
dc.identifier.epage	181	en