Corrosion Properties of Rebar Welded Joints

Li Yun Tang; Qian Hui Xiao; Shu Yun Zhang

doi:10.4028/www.scientific.net/AMM.166-169.1981

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 166-169Corrosion Properties of Rebar Welded Joints

Corrosion Properties of Rebar Welded Joints

Abstract:

The main reason that causes the premature failure of concrete structure is rebar corrosion damage. Furthermore, the chloride ion penetration is the main reason of rebar corrosion damage. Stress corrosion in welding joint of rebar is studied. Separate rebar into 5 groups, each group have 3 pieces. Grouping experimental method is used to make welded joints soaked, compare the variation law of mechanical properties of flush welded joint under the influence of corrosive environment. Combining with Finite Element Analysis shows that a higher stress concentration during welding process is the important reason to the performance degradation of rebar in corrosive environments. Comparative tests have shown that stress corrosion cracking more likely occur in the welding zone and welding clamping position. The results show that the rebar production process must be strictly controlled, and effectively prevent the erosion of the corrosive medium to ensure the long-term safety of the building.

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Periodical:

Applied Mechanics and Materials (Volumes 166-169)

Pages:

1981-1986

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.166-169.1981

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Online since:

May 2012

Authors:

Li Yun Tang, Qian Hui Xiao, Shu Yun Zhang

Keywords:

Environmental Experiment, Mechanical Property, Rebar, Stress Analysis, Welded Butt Joints

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References

[1] XIAO Jia, GOU Cheng-fu. Overview of the research for concrete carbonation. Concrete. Vol.1(2010) , pp.40-44.

Google Scholar

[2] YANG Xiong, LU Liyan, WANG Quanli, et al. Development of hrb500 grade reinforcement and test study of its flash butt welding. Construction Technology. Vol.33(2004),pp.52-53.

Google Scholar

[3] LIN Caiyuan, XIE Jiande. Development situation of rebar connection technology in china and abroad. Construction Technology.Vol.37( 2008),pp.109-110.

Google Scholar

[4] J.J. Riley. Flash butt welding-welding technique and variables in welding low-alloy steel. Welding Journal. Vol.24(1945),pp.125-245.

Google Scholar

[5] HONG Nai-feng. Concrete durability in chloride environment and life-cycle costing analysis. Concrete. Vol.8(2005),pp.29-32.

Google Scholar

[6] LI Jingui, XIAO Dingquan. Modern surface engineering design manual. National Defence Industry Press, (2001).

Google Scholar

[7] WANG Qiang,XIE Youlin. Corrosion and protection research on reinforce concrete structure with chloride iron penetration. China Water Transport. Vol.6(2006),pp.99-100.

Google Scholar