Experimental and Theoretical Investigations on Bond Strength of GFRP Rebars in Normal and High Strength Concrete

International Conference on Civil Engineering and Infrastructural Issues in Emerging Economies 2017

土木建筑工程;经济学

Eswanth, P.^1 ; Dhinakaran, G.^1

School of Civil Engineering, SASTRA University, Thanjavur

613401, India^1

关键词: Bond properties;    Corrosion free;    Non-homogeneous;    Normal- and high-strength concretes;    Pull-out loads;    Reinforcing steels;    Theoretical investigations;    Transfer of load;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/80/1/012008/pdf
DOI  :  10.1088/1755-1315/80/1/012008

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Bond behavior between GFRP bars and concrete is the most important parameter for constructing corrosion free structures by implementing the material. Serviceability of reinforced concrete structures are controlled by bond behavior. GFRP materials behave differently from reinforcing steel in terms of bond. They are of non-homogeneous and anisotropic. Due to this outstanding behavior, there is a difference in transfer of loads between GFRP bars and concrete which made it as an idealized choice of a material. In the present work, the bond strength of GFRP bars in normal and high strength concrete was studied. In total, 12 specimens containing 12 mm, 16 mm diameter rebars which were embedded in 150 mm x 150 mm x 150 mm cubes were investigated. The specimens were subjected to direct tension pull out test in accordance with IS 2770 part 1. The comparison of bond properties of GFRP rebar in normal and high strength concrete showed that pull out load of non-metallic rebar fell well within the range.