Development length and bond strength of CFRP rod panels (CRP's) bonded to concrete

Akram Jawdhari, Issam Harik

Research output: Contribution to conferencePaperpeer-review

4 Scopus citations

Abstract

Carbon fiber reinforced polymer (CFRP) rod panels have recently been developed and deployed in the field to overcome some of the limitations of current methods of repair with CFRP laminates. The CFRP rod panels (CRP) are externally bonded to the concrete substrate in a manner similar to other externally bonded reinforcement (EBR). Each panel is 1.2 m (4 ft) long and is made of a number of small diameter rods that are attached to a glass FRP mesh. In the field, the panels are connected through a finger joint to form a continuous EBR. In order to insure the success of this method, the "finger joint" or "lap splice" must be capable of transferring the design forces from one panel to another without debonding. In this study, 12 double-lap shear specimens were tested under pull-off loading to evaluate the bond strength and development length of CRP bonded to concrete. The bond strength and development length were established for a rod diameter of 2 mm (0.078 in.).

Conference

ConferenceJoint Conference of the 12th International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures, FRPRCS 2015 and the 5th Asia-Pacific Conference on Fiber Reinforced Polymers in Structures, APFIS 2015
Country/TerritoryChina
CityNanjing
Period12/14/1512/16/15

Bibliographical note

Publisher Copyright:
© APFIS 2015. All rights reserved.

Keywords

  • Bond
  • CFRP rods
  • Concrete
  • Development length
  • Double-lap shear

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • General Materials Science

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