scholarly journals Effects of Ageing on the Bond Properties of Carbon Fiber Reinforced Polymer/Concrete Adhesive Joints: Investigation Using a Modified Double Shear Test

2017 ◽  
Vol 45 (6) ◽  
pp. JTE20160587 ◽  
Author(s):  
M. Quiertant ◽  
K. Benzarti ◽  
J. Schneider ◽  
F. Landrin ◽  
M. Landrin ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Shear Test ◽  
Adhesive Joints ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Polymer Concrete ◽  
Bond Properties ◽  
Double Shear ◽  
Reinforced Polymer ◽  
Double Shear Test

A Pull-Shear Test for Debonding of FRP- Laminates for Concrete Structures

2008 ◽  
Vol 399 ◽  
pp. 141-151
Author(s):  
Lluís Gil ◽  
Juan José Cruz ◽  
Marco Antonio Pérez
Keyword(s):  
Carbon Fiber ◽  
Carbon Fibers ◽  
Shear Test ◽  
Mechanical Characteristics ◽  
Pure Shear ◽  
Concrete Structures ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Near Future

The reinforcement of concrete structures with laminates of carbon fibers CFRP (Carbon Fiber Reinforced Polymer) began in the 1970’s but laminates were not used extensively until the 1990’s.Nowadays it is one of the most promising technologies due to the good mechanical characteristics of the laminates and their easy manipulation. In the near future, laminates will play a fundamental role in the rehabilitation projects of buildings. Laminates bond to the concrete by means of resins of epoxy type. The capability of the reinforcement depends directly on the proper behavior of the interface laminate-concrete. The laminate helps to bear loads while the concrete is able to transfer stresses to the laminate. The safety factor of the reinforcement can be guaranteed if we can predict the behavior at the interface between both materials. In this work a test of pure shear has been developed to better understand the behavior at the interface between the laminate and the concrete.

A Study on Carbon Fiber Influence to Rebar Corrosion in Concrete

2012 ◽  
Vol 204-208 ◽  
pp. 3114-3118
Author(s):  
Qiao Yang ◽  
Xiao E Zhu
Keyword(s):  
Carbon Fiber ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Polymer Concrete ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Crack Behavior ◽  
Concrete Corrosion ◽  
Rebar Corrosion ◽  
Carbon Fiber Reinforced

Rebar corrosion test of Carbon Fiber Reinforced Polymer (CFRP) concrete was did. Carbon fiber in concrete improved the compression strength of the concrete, but width and number of concrete cracks was not reduced, carbon fiber has not obvious act for improving concrete corrosion crack behavior. CFRP concrete Corrosion potential was a little high than common concrete, carbon fiber has not obvious act for improving concrete behavior in protecting steel beyond corrosion. The porosity of the carbon fiber reinforced polymer concrete was twice of the common concrete, carbon fiber added to concrete lead to increase porosity and maybe decrease concrete behavior in protecting the embedded steel in corrosion.

scholarly journals Bond Properties of Carbon Fiber Reinforced Polymer and Corrosion-Cracked Reinforced Concrete Interface: Experimental Test and Nonlinear Degenerate Interface Law

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5333
Author(s):  
Yongzhi Gong ◽  
Yingjie Shan ◽  
Yuyuan Wu ◽  
Liping Wang ◽  
Xiaojie Liu ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Bond Properties ◽  
Fiber Reinforced ◽  
Cfrp Sheets ◽  
Reinforced Polymer ◽  
Concrete Interface ◽  
Nonlinear Degenerate

Existing experimental research on bond properties of the interface between Carbon Fiber Reinforced Polymer (CFRP) and damaged concrete is limited, although CFRP strengthening technology has been widely used for corroded reinforced concrete structures. This work investigated the bond behavior of CFRP to the corrosion-cracked concrete interface, in which three factors were considered for experimentation, including corrosion degree, concrete strength and concrete cover thickness. The tests were conducted by developing a self-balancing double shear lap test device. In addition, a corrosion scene was provided simultaneously to simulate the external corrosion environment. The results showed that three peeling modes of CFRP sheets were observed with respect to corrosion degrees of the steel bars. The effects of the three factors on the stripping bearing capacity and effective bond length of CFRP sheets were discussed by systematic parametric analysis. Finally, a nonlinear degenerate law of CFRP-to-concrete interface considering the corrosion degree was improved and verified in this study.

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