Investigation on meso-debonding process of the sandstone–concrete interface induced by freeze–thaw cycles using NMR technology

2020 ◽  
Vol 252 ◽  
pp. 118962 ◽  
Author(s):  
Yanjun Shen ◽  
Yongzhi Wang ◽  
Xin Wei ◽  
Hailiang Jia ◽  
Ruixin Yan
Keyword(s):  
Freeze Thaw ◽  
Debonding Process ◽  
Concrete Interface

scholarly journals Effects of Cyclic Freeze–Thaw on the Steel Bar Reinforced New-To-Old Concrete Interface

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1251
Author(s):  
Tao Luo ◽  
Chi Zhang ◽  
Xiangtian Xu ◽  
Yanjun Shen ◽  
Hailiang Jia ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Shear Strength ◽  
Concrete Structures ◽  
Freezing Temperature ◽  
Frost Damage ◽  
Freezing And Thawing ◽  
Shear Properties ◽  
Freeze Thaw ◽  
Steel Bar ◽  
Concrete Interface

Frost damage of concrete has significant effects on the safety and durability of concrete structures in cold regions, and the concrete structures after repair and reinforcement are still threatened by cyclic freezing and thawing. In this study, the new-to-old concrete interface was reinforced by steel bar. The shear strength of the new-to-old concrete interface was tested after the new-to-old combination was subjected to cyclic freeze–thaw. The effects of the diameter of the steel bar, the compressive strength of new concrete, the number of freeze–thaw cycles and the freezing temperatures on the shear properties of new-to-old concrete interface were studied. The results showed that, in a certain range, the shear strength of the interface was proportional to the diameter of the steel bar and the strength of the new concrete. Meanwhile, the shear strength of the reinforced interface decreased with the decreasing of the freezing temperature and the increasing of the number of freeze–thaw cycles.

Experimental and numerical investigation of debonding process of the FRP plate-concrete interface

2020 ◽  
Vol 235 ◽  
pp. 117457 ◽  
Author(s):  
Pei Zhang ◽  
Dong Lei ◽  
Qingwen Ren ◽  
Jintao He ◽  
Hongzhou Shen ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Debonding Process ◽  
Concrete Interface

Freeze-thaw cycling impact on the shear behavior of frozen soil-concrete interface

2020 ◽  
Vol 173 ◽  
pp. 103024 ◽  
Author(s):  
Pengfei He ◽  
Yanhu Mu ◽  
Zhaohui Yang ◽  
Wei Ma ◽  
Jianhua Dong ◽  
...  
Keyword(s):  
Shear Behavior ◽  
Frozen Soil ◽  
Freeze Thaw ◽  
Concrete Interface

Investigation of damage behaviors of ECC-to-concrete interface and damage prediction model under salt freeze-thaw cycles

2019 ◽  
Vol 226 ◽  
pp. 238-249 ◽  
Author(s):  
Jun Tian ◽  
Xiaowei Wu ◽  
Yu Zheng ◽  
Shaowei Hu ◽  
Wei Ren ◽  
...  
Keyword(s):  
Prediction Model ◽  
Damage Prediction ◽  
Freeze Thaw ◽  
Concrete Interface

Sandstone-concrete interface debonding mechanism under freeze-thaw actions: Fracture process and fracture criterion

2021 ◽  
Vol 294 ◽  
pp. 123526
Author(s):  
Zihan Zhou ◽  
Yanjun Shen ◽  
Huan Zhang ◽  
Yongzhi Wang ◽  
Hongwei Yang ◽  
...  
Keyword(s):  
Fracture Process ◽  
Fracture Criterion ◽  
Interface Debonding ◽  
Freeze Thaw ◽  
Concrete Interface

Impact of Freeze-Thaw Degradation on FRP-Concrete Interface Fracture

2007 ◽  
pp. 419-426
Author(s):  
Kolluru V. Subramaniam ◽  
Michel Ghosn ◽  
Mohamad Ali-Ahmad
Keyword(s):  
Interface Fracture ◽  
Freeze Thaw ◽  
Concrete Interface

Freeze–thaw degradation of FRP–concrete interface: Impact on cohesive fracture response

2008 ◽  
Vol 75 (13) ◽  
pp. 3924-3940 ◽  
Author(s):  
Kolluru V. Subramaniam ◽  
Mohamad Ali-Ahmad ◽  
Michel Ghosn
Keyword(s):  
Cohesive Fracture ◽  
Freeze Thaw ◽  
Concrete Interface
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