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Mechanical and bonding behavior of a bendable fiber-reinforced thermoplastic rebar
Highlights A bendable basalt fiber-reinforced thermoplastic (BFRTP) rebar was investigated. The BFRTP rebar showed comparable mechanical behavior with thermosetting one. The BFRTP rebar had weaker interlaminar shear strength but significant ductility. The strength of bent BFRTP rebar was 21–39% of the straight rebar strength.
Abstract In reinforced concrete structures, the bendable thermoplastic rebars has gained attention because it can simplify manufacturing and construction process. In this study, the major mechanical behaviors of newly-developed basalt fiber-reinforced thermoplastic (BFRTP) rebars were investigated, including the basic tensile/transverse shear/interlaminar shear behavior, pullout behavior, and bent rebar behavior. Other types of rebars, such as rebars fabricated with glass fiber or thermosetting resin matrix, were included for comparison. The results demonstrated that the BFRTP rebars exhibited weaker strength but significant ductility under interlaminar shear force. The pullout failure of the deep-ribbed 8 mm BFRTP rebar was accompanied by rebar splitting because of the lack of interlaminar shear strength. The strength of the bent BFRTP rebar ranged from 21 to 39% of its straight rebar strength.
Mechanical and bonding behavior of a bendable fiber-reinforced thermoplastic rebar
Highlights A bendable basalt fiber-reinforced thermoplastic (BFRTP) rebar was investigated. The BFRTP rebar showed comparable mechanical behavior with thermosetting one. The BFRTP rebar had weaker interlaminar shear strength but significant ductility. The strength of bent BFRTP rebar was 21–39% of the straight rebar strength.
Abstract In reinforced concrete structures, the bendable thermoplastic rebars has gained attention because it can simplify manufacturing and construction process. In this study, the major mechanical behaviors of newly-developed basalt fiber-reinforced thermoplastic (BFRTP) rebars were investigated, including the basic tensile/transverse shear/interlaminar shear behavior, pullout behavior, and bent rebar behavior. Other types of rebars, such as rebars fabricated with glass fiber or thermosetting resin matrix, were included for comparison. The results demonstrated that the BFRTP rebars exhibited weaker strength but significant ductility under interlaminar shear force. The pullout failure of the deep-ribbed 8 mm BFRTP rebar was accompanied by rebar splitting because of the lack of interlaminar shear strength. The strength of the bent BFRTP rebar ranged from 21 to 39% of its straight rebar strength.
Mechanical and bonding behavior of a bendable fiber-reinforced thermoplastic rebar
Wang, Xin (author) / Peng, Zheqi (author) / Ding, Lining (author) / Lu, Jing (author) / Zhu, Zhongguo (author) / Wu, Zhishen (author)
2021-07-10
Article (Journal)
Electronic Resource
English
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