Bond Characteristics of FRP Rod and Concrete after Freezing and Thawing Deterioration

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Title: Bond Characteristics of FRP Rod and Concrete after Freezing and Thawing Deterioration

Author(s): M. Mashima and K. Iwamoto

Publication: Special Publication

Volume: 138

Issue:

Appears on pages(s): 51-70

Keywords: Bond strength; bond stress; carbon; fiber reinforced plastics; fibers; freeze thaw durability; glass; pullout tests

Date: 9/1/1993

Abstract:
Recently, a non-metallic reinforcement is developed using new synthetic fiber, such as carbon, aramid and vinylon fiber in Japan. The fiber is made into a FRP rod. This material has advanced properties, for example, corrosion free, light weight and high strength, and are expected to apply for the practical structures. However, it is important to study engineering properties and design method in many fields theoretically and experimentally. In present paper, the bond characteristics are discussed because the expansion coefficient of non metallic fiber is different from conventional concrete. The results from the pull-out tests are, (l)the bond strength of FRP rod is ensured for the concrete structures, and (2)the deterioration of bond property is not appeared in CFRP, GFRP and VFRP however a little reduction is observed at AFRP rod.