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所属单位：民航学院

发表刊物：Constr Build Mater

摘要：This paper presents the experimental results of the salt-frost resistance of recycled coarse aggregate concrete (RAC) and the bond behavior of RAC with steel bar after salt-frost cycles. The results show that the mass of the RAC first increases and then decreases with increasing number of salt-frost cycles; the cubic compressive strength and the relative dynamic elastic modulus of the RAC decrease with increasing number of salt-frost cycles. The bond strength of the RAC decreases with increasing number of salt-frost cycles, while the slippage increases with increasing number of salt-frost cycles. The bond strength of the RAC after salt-frost cycles decreases more quickly and the slippage is larger than that after freeze-thaw cycles in water. The bond strength and the slippage of specimens without stirrups are lower than that with stirrups after salt-frost cycles. A prediction model of the bond-slip between the RAC and steel bar after salt-frost cycles is established, and the influence of salt-frost cycles on the bond stress distribution along with the steel bars is investigated. © 2019 Elsevier Ltd

ISSN号：0950-0618

是否译文：否

发表时间：2019-01-01

合写作者：Su, Tian,Yang, Guixin,Zou, Zhenghao

通讯作者：吴瑾