Research on Bond Properties Between High-Strength Rebars of Negative Poisson Ratios and Concrete

SHAO Shuwen; SHANG Huaishuai; FENG Haibao; LI Yongsheng; YUAN Shoutao

doi:10.13204/j.gyjzG21042809

Volume 52 Issue 2

Feb. 2022

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SHAO Shuwen, SHANG Huaishuai, FENG Haibao, LI Yongsheng, YUAN Shoutao. Research on Bond Properties Between High-Strength Rebars of Negative Poisson Ratios and Concrete[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(2): 151-157. doi: 10.13204/j.gyjzG21042809

Citation:

SHAO Shuwen, SHANG Huaishuai, FENG Haibao, LI Yongsheng, YUAN Shoutao. Research on Bond Properties Between High-Strength Rebars of Negative Poisson Ratios and Concrete[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(2): 151-157. doi: 10.13204/j.gyjzG21042809

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Research on Bond Properties Between High-Strength Rebars of Negative Poisson Ratios and Concrete

doi: 10.13204/j.gyjzG21042809

1. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;
2. China Communications No.1 Aviation Bureau Company, Tianjin 300456, China;
3. Qingdao Aviation Engineering Test Company, Qingdao 266044, China

Received Date: 2021-04-28
Available Online: 2022-06-30
Publish Date: 2022-02-20

Abstract

Abstract

A new type of high-strength high-ductility corrosion-resistant rebars—Negative Poisson Ratio(NPR) has been developed independently in China. The bond properties of concrete with NPR rebars were studied by central pull-out tests. The failure modes of the specimens were observed, and the effects of rebar types (NPR rebars, ordinary rebars), rebar diameters (8, 18 mm) and bond lengths (5 or 7 times the diameter of rebars) on the bond strength and bond slip curves were analyzed. The test results showed that the rebar type had no obvious effect on the failure mode, but it had obvious effect on the bond-slip curve. When other conditions were the same, the bond strength of NPR rebars was lower than that of ordinary rebars, and the influence laws of rebar diameters and bond length on the bond strength of two kinds of rebars were similar.
- NPR rebar,
- central pull-out test,
- bond strength,
- failure mode

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References(16)

References

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