EXPERIMENTAL STUDY ON CORROSION RESISTANT PERFORMANCE OF FRP BARS UNDER ACCELERATED AGING ENVIRONMENTS

Dong Zhiqiang; Zhang Guangchao; Wu Gang; Wu Zhishen

doi:10.13204/j.gyjz201306004

Volume 43 Issue 6

Dec. 2014

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Dong Zhiqiang, Zhang Guangchao, Wu Gang, Wu Zhishen. EXPERIMENTAL STUDY ON CORROSION RESISTANT PERFORMANCE OF FRP BARS UNDER ACCELERATED AGING ENVIRONMENTS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(6): 14-17. doi: 10.13204/j.gyjz201306004

Citation:

Dong Zhiqiang, Zhang Guangchao, Wu Gang, Wu Zhishen. EXPERIMENTAL STUDY ON CORROSION RESISTANT PERFORMANCE OF FRP BARS UNDER ACCELERATED AGING ENVIRONMENTS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(6): 14-17. doi: 10.13204/j.gyjz201306004

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EXPERIMENTAL STUDY ON CORROSION RESISTANT PERFORMANCE OF FRP BARS UNDER ACCELERATED AGING ENVIRONMENTS

doi: 10.13204/j.gyjz201306004

1.
1. International Institute for Urban Systems Engineering,Southeast University,Nanjing 210018,China;
2.
2. Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China

Received Date: 2013-02-10
Publish Date: 2013-06-20

Abstract

Abstract

An experimental study on two kinds of FRP bars in two high temperature solutions was conducted to investigate their corrosion resistant performance.Furthermore, it was also studied the mechanical properties degradation of BFRP bars within indoor concrete environment.Meanwhile, the water uptake and mass loss performance of BFRP bars in two temperatures and two solutions were studied.The results showed that the increase of temperature aggravated the degradation degree of the tensile strength of FRP bars;the corrosion degree of BFRP bar in alkali solution was much more severe than in water, and the indoor concrete environment would not damage BFRP bar.There was almost no degradation in two corrosive solutions for tensile strength of CFRP bars, but their elastic modulus degraded greater than BFRP tendons.The higher the temperature, the greater the moisture absorption rate of reinforcement, the one in alkali solution was greater than that in water;mass loss rate could characterize the degradation of FRP bars well.
- FRP bars,
- corrosion resistant performance,
- mechanical properties,
- water uptake,
- mass loss rate

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References(7)

References

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