Experimental Research on Chloride Penetration Resistance of Calcium Sulfate Whisker and Basalt Fiber Concrete

LI Chen-chen; ZHANG Wen-bin; ZHANG Pu; LI Chun-yue

doi:10.13204/j.gyjzg21112207

Volume 52 Issue 9

Sep. 2022

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LI Chen-chen, ZHANG Wen-bin, ZHANG Pu, LI Chun-yue. Experimental Research on Chloride Penetration Resistance of Calcium Sulfate Whisker and Basalt Fiber Concrete[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(9): 48-52,66. doi: 10.13204/j.gyjzg21112207

Citation:

LI Chen-chen, ZHANG Wen-bin, ZHANG Pu, LI Chun-yue. Experimental Research on Chloride Penetration Resistance of Calcium Sulfate Whisker and Basalt Fiber Concrete[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(9): 48-52,66. doi: 10.13204/j.gyjzg21112207

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Experimental Research on Chloride Penetration Resistance of Calcium Sulfate Whisker and Basalt Fiber Concrete

doi: 10.13204/j.gyjzg21112207

College of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China

Received Date: 2021-11-22
Available Online: 2023-02-06

Abstract

Abstract

Rapid chloride ion migration coefficient method(RCM)was used to measure the unsteady migration coefficient of chloride ion in concrete, so as to evaluate the resistance of concrete to chloride penetration. The effects of basalt fiber with different volume ratio, calcium sulfate whisker with different mass contents and different hybrid fiber contents of basalt fiber and calcium sulfate whisker on resistance of concrete to chloride penetration were studied. The results showed that the influence of single basalt fiber on the resistance of concrete to chloride penetration was not obvious. Resistance of concrete to chloride permeability could be improved by adding calcium sulfate whisker alone. With increase of the whisker content, the resistance of concrete to chloride permeability increased first and then decreased, but it was all higher than that of ordinary concrete. The optimal whisker content was 2%, and the chloride ion permeability resistance of concrete was improved by 36.8% compared with that of ordinary concrete. An appropriate hybrid fiber content of basalt fiber and calcium sulfate whisker could improve the resistance of concrete to chloride penetration, and the maximum improvement rate was 33.7%. The improvement of chloride penetration resistance of hybrid fiber concrete with basalt fiber and calcium sulfate whisker was mainly from calcium sulfate whisker.
- basalt fiber,
- calcium sulphate whisker,
- concrete,
- fiber content,
- resistance to chloride penetration

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References(30)

References

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