Abstract
Abstract This paper presents results of an experimental study on the effect of concrete strength class on performance of carbon-fiber-reinforced-polymer (CFRP)-strengthened concrete subjected to compression. Test results indicated that the strength of CFRP-confined concrete increases with increase in number of confining layers; however, the increase in strength as a result of CFRP confinement was more significant for the lower strength class of concrete than the higher strength class of concrete. Using the experimental data obtained from the present work and from the literature, an empirical equation is derived that correlates the confinement effectiveness coefficient and unconfined compressive strength of concrete.
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