In this paper, an overview focusing on the bond behavior of recycled coarse aggregate concrete (RAC) with steel bar is carried out. The results show that the failure modes of RAC specimen were not only influenced by a single factor, it is necessary to comprehensively consider the influence of various factors on the failure modes of RAC specimen; The steel bar diameter, the concrete cover to diameter ratio and the replacement rate of RCA all affect the load-slip curve of RAC specimen; Bond strength predictive equations and bond-slip relationship models of RAC with steel bar has been summarized to ensure engineers to better understand their applicability; The influencing factors of the bond behavior of RAC specimens including the replacement rate of RCA, the concrete compressive strength, the steel bar type and steel bar diameter, the steel bar embedment length and the aggregate performance; The freeze-thaw cycles and the steel bar corrosion all affect the bond behavior of RAC with steel bar. When freeze-thaw damage and steel bars corrosion reach a certain degree, the bond behavior of RAC with steel bar deteriorates.

中文翻译：

---

再生粗骨料与钢筋的粘结性能概述

本文对再生粗骨料混凝土（RAC）与钢筋的粘结性能进行了概述。结果表明，RAC试件的破坏模式不仅受单一因素的影响，还需要综合考虑各种因素对RAC试件破坏模式的影响。钢筋直径，混凝土罩径比和RCA的置换率均影响RAC试件的荷载滑移曲线。总结了RAC与钢筋的粘结强度预测方程和粘结滑移关系模型，以确保工程师更好地了解其适用性；影响RAC试样粘结性能的因素包括RCA的置换率，混凝土抗压强度，钢筋类型和钢筋直径，钢筋的包埋长度和骨料性能；冻融循环和钢筋腐蚀都会影响RAC与钢筋的粘结行为。当冻融破坏和钢筋腐蚀达到一定程度时，RAC与钢筋的粘结性能会下降。