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作者:

Ye, Taoping (Ye, Taoping.) | Cao, Wanlin (Cao, Wanlin.) (学者:曹万林) | Dong, Hongying (Dong, Hongying.) | Zhang, Yixuan (Zhang, Yixuan.)

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摘要:

To investigate the bond behavior between corroded steel bars and high-strength recycled concrete, a central pull-out test was carried on 36 specimens which were produced by electricity to accelerate corrosion. In this paper, the design parameters comprises replacement rate of recycled coarse aggregate, rebar shape, rebar diameter, anchorage length and corrosion rate of rebar. Based on the test results, the bond failure forms of specimens and the influences of each design parameter on the bond behavior between corroded steel bars and high-strength recycled concrete were analyzed. The results indicate that there are three failure forms in the failure process, including steel bar pull-off, steel bar pull-out and concrete splitting. The bond strength between high-strength recycled concrete and corroded rebar is obviously higher than that of corroded plain round bar. The bond strength decreases with the increase of replacement rate of recycled coarse aggregate, rebar diameter, anchorage length, and corrosion rate of rebar. When the bar corrosion rate reaches a certain value, the reduction of bond strength is not obvious. © 2018, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.

关键词:

Aggregates Anchorages (concrete construction) Anchorages (foundations) Bond strength (materials) Concrete aggregates Concrete testing Corrosion rate High performance concrete Rebar Recycling Steel corrosion Steel testing

作者机构:

  • [ 1 ] [Ye, Taoping]Key Laboratory of Urban Security and Disaster Engineering (Beijing University of Technology), Ministry of Education, Beijing; 100124, China
  • [ 2 ] [Cao, Wanlin]Key Laboratory of Urban Security and Disaster Engineering (Beijing University of Technology), Ministry of Education, Beijing; 100124, China
  • [ 3 ] [Dong, Hongying]Key Laboratory of Urban Security and Disaster Engineering (Beijing University of Technology), Ministry of Education, Beijing; 100124, China
  • [ 4 ] [Zhang, Yixuan]Key Laboratory of Urban Security and Disaster Engineering (Beijing University of Technology), Ministry of Education, Beijing; 100124, China

通讯作者信息:

  • 曹万林

    [cao, wanlin]key laboratory of urban security and disaster engineering (beijing university of technology), ministry of education, beijing; 100124, china

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来源 :

Journal of Harbin Institute of Technology

ISSN: 0367-6234

年份: 2018

期: 8

卷: 50

页码: 132-141

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 3

ESI高被引论文在榜: 0 展开所有

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