Open Access Thesis
Date of Award
Civil and Environmental Engineering
FRP BOND STRENGTH DEGRADATION: AN EXPERIMENTAL STUDY USING PULL-OFF TESTING
CLARISSE MACHADO MIKAMI
Advisor: Dr. Hwai-Chung Wu
Major: Civil Engineering
Degree: Master of Science
Fiber reinforced polymer (FRP) is an advanced composite material that has been employed efficiently to rehabilitate deteriorated concrete structures. Environmental factors, however, affect the durability performance of FRP. As bond at the interfacial region between FRP and concrete is essential to the overall integrity of the system, the focus of this thesis is on bond deterioration due to hot weathering conditions.
In this study, an experimental program was developed to investigate the effect of long-term environmental exposure on bond strength. During this program, concrete beam specimens were cast, strengthened with a single ply of CFRP in a hand layup installation method and exposed to accelerated tests in the laboratory, such as cyclic hygrothermal (temperature and humidity) conditions, and immersion in distilled and salt water. Pull-off testing was used to generate quantitative data on the CFRP bond degradation, which allowed as aimed, the drawing of trends, conclusions and a comparison to previous work performed at Wayne State University. Future research was also recommended to further enlighten this issue.
Mikami, Clarisse, "Frp Bond Strength Degradation: An Experimental Study Using Pull-Off Testing" (2012). Wayne State University Theses. 213.