EXPERIMENTAL STUDY ON BOND BEHAVIOR OF GFRP REBARS AND RECYCLED CONCRETE

Abstract

Abstract: Based on the pull-out tests of 12 groups specimens which were designed according to CSA standard, the influence of four factors (the diameter of GFRP rebars, the incorporation rate of recycled concrete coarse aggregate, cubic compressive strength and splitting strength) on bond behavior of GFRP rebars and recycled concrete were systematically studied. The test results show that the source of coarse aggregate has little influence on bond failure pattern, and most of the patterns are pull-out failure, but the average bond strength decreases with the incorporation rate of recycled concrete coarse aggregate increasing; the cubic compressive strength and splitting strength have similar influence on the average bond strength which decreases with the strength of recycled concrete decreasing; and due to the adverse effect of shear lag, the average bond strength decreases when the diameter of GFRP rebars is increasing.

Key words: GFRP rebars, recycled concrete, pull-out test, bond behavior

CLC Number:

TB332

ZHANG Wei-dong, WANG Zhen-bo, WANG Cheng-wu. EXPERIMENTAL STUDY ON BOND BEHAVIOR OF GFRP REBARS AND RECYCLED CONCRETE[J]. Fiber Reinforced Plastics/Composites, 2016, 0(9): 66-69.

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