Experimental study on complete stress-strain curve of full-scale specimen of confined recycled concrete under compression
CSTR:
Author:
Affiliation:

Clc Number:

Fund Project:

Beijing Municipal Commission of Education(No.PXM2015_014210_000005); Beijing University of Civil Engineering and Architecture(No.00331615007)

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    To study the complete stress-strain curve of stirrup confined recycled concrete under uniaxial loading, we tested on nine circular column specimens of recycled concrete which have a diameter of 500 mm and a height of 1 500 mm. In this test,we used a servo-hydraulic test machine with a capacity of 20 000 kN for displacement and loading control. The main test parameters are longitudinal reinforcement ratio, the spacing and diameter of stirrup, and applied strain rate. The results show that the spacing of stirrup and stirrup ratio have great influence on the ductility of specimens. The peak stress of specimen increases 114% when the applied strain rate increases from 0.000003/s to 0.0033/s. The complete stress-strain curve of recycled concrete is similar to that of normal concrete but the descending branch is stiffer than that of normal concrete, which means that the recycled concrete is more brittle than normal concrete.

    Reference
    Related
    Cited by
Get Citation

吴超垚,彭有开,吴徽.约束再生混凝土足尺试件受压应力-应变全曲线试验研究[J].土木与环境工程学报(中英文),2016,38(1):77~83

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:August 20,2015
  • Revised:
  • Adopted:
  • Online: March 01,2016
  • Published:
Article QR Code