Positive effects of aligned steel fiber on bond behavior between steel rebar and concrete

2020 ◽  
Vol 114 ◽  
pp. 103828
Author(s):  
Xuhui Zhang ◽  
Wei Zhang ◽  
Cuodong Cao ◽  
Fu Xu ◽  
Caiqian Yang
Structures ◽  
2022 ◽  
Vol 36 ◽  
pp. 565-579
Author(s):  
Comfort Mensah ◽  
Benzhi Min ◽  
Alex Osei Bonsu ◽  
Zhenqing Wang

2014 ◽  
Vol 578-579 ◽  
pp. 1145-1148
Author(s):  
Xiao E Zhu ◽  
Xu Jun Chen ◽  
Mu Xiang Dai

In dry-wet cycle chloride environment, the corrosion potential of the SFRC specimens is stable between-300mV to-400mV. And the common concrete specimens were about-500mV, adding steel fibers is higher corrosion potential and lower the corrosion possibility. Steel fiber has effective action on the controlling rebar corrosion and concrete crack. There were no cracks on all the surface of the SFRC specimens. Adding Steel fiber in concrete composed to be a corrosion cell as sacrificial anodes to protected steel rebar as cathode, in some degree to postpone rebar corrosion beginning time and increasing the structure services life.


2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Wanjie Zou ◽  
Jiongfeng Liang ◽  
Dawei Liu ◽  
Guangwu Zhang

To explore the bond behavior between steel rebar and recycled coarse aggregate (RCA) concrete after exposure to elevated temperatures, an experimental study was carried out. The results demonstrated that the bond strength of RCA concrete pullout specimens decreased greatly with increasing temperature. As the exposure temperature elevated, the slope of the ascending portion of the bond-slip curves gradually declined, and the descending portion of the curves tended to flatten. A modified model was developed to predict the bond strength between RCA concrete and steel rebar after exposure to elevated temperature, and the predicted results showed a very good fit in the experimental test results. Besides, the proposed bond-slip relations for steel rebar in RCA concrete after elevated temperatures showed satisfactory agreement with test results.


Author(s):  
Zhenyu Huang ◽  
Youshuo Huang ◽  
Lili Sui ◽  
Ningxu Han ◽  
Feng Xing ◽  
...  

2020 ◽  
Vol 20 (3) ◽  
Author(s):  
Paolo Zampieri ◽  
Nicolò Simoncello ◽  
Jaime Gonzalez Libreros ◽  
Carlo Pellegrino

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