Research Status of Bond-slip Behavior between Rebar and Recycled Concrete

Cheng Peng

《International Core Journal of Engineering》 9卷5期 (2023/05) Pp. 107-111

https://doi.org/10.6919/ICJE.202305_9(5).0013

摘要

The bond force between steel bar and concrete can be divided into three kinds: chemical adhesive force, friction force and mechanical bite force. According to the developing process of bond‐slip curve, the curve is divided into 5 sections, which are micro‐slip section, slip section, crack section, decline section and residual section. The bond performance between reinforcement and concrete is affected by concrete strength, reinforcement performance, anchorage length, thickness of protective layer and so on. The bond behavior between rebar and recycled concrete is consistent with that of ordinary concrete. The trend of bond‐slip curve is similar to that of development. The failure modes of drawing specimens are pull‐out failure, split‐pull failure and split failure.

關鍵字

Bonding Properties ； Bond Slip Curve ； Failure Mode of Specimen

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