FURTHER STUDY ON CHLORIDE ION DIFFUSION PROPERTIES IN CONCRETE

Sun Congtao; Niu Ditao

doi:10.13204/j.gyjz201009021

Volume 40 Issue 9

Dec. 2014

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Sun Congtao, Niu Ditao. FURTHER STUDY ON CHLORIDE ION DIFFUSION PROPERTIES IN CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(9): 80-83. doi: 10.13204/j.gyjz201009021

Citation:

Sun Congtao, Niu Ditao. FURTHER STUDY ON CHLORIDE ION DIFFUSION PROPERTIES IN CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(9): 80-83. doi: 10.13204/j.gyjz201009021

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FURTHER STUDY ON CHLORIDE ION DIFFUSION PROPERTIES IN CONCRETE

doi: 10.13204/j.gyjz201009021

1.
Key Laboratory for Structural Engineering and Seismic Resistance of Ministry of Education,Xi’an University of Architecture and Technology,Xi’an 710055,China

Received Date: 2010-03-15
Publish Date: 2010-09-20

Abstract

Abstract

The corrosion of reinforcing bar induced by chloride ion is the main reason for the properties degradation of concrete structures under the chloride erosion environment,at present,the study on chloride ion diffusion properties almost takes free chloride ion as the object,the diffusion properties of total chloride ion in concrete has rarely been studied. The diffusion properties of free chloride ion and total chloride ion in concrete were further studied by natural diffusion method in this paper,the effect of water-binder ratio on chloride ion diffusion properties was investigated,the time-dependence of chloride ion diffusion coefficient was taken into consideration,the relationship between the effective chloride ion diffusion coefficient and the apparent chloride ion diffusion coefficient was established,which has laid a foundation for more scientific durability life prediction of concrete structures under the chloride erosion environment.
- concrete,
- free chloride ion,
- total chloride ion,
- diffusion properties

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References(8)

References

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洪乃丰.我国氯盐腐蚀环境与混凝土结构的耐久性[C]∥沿海地区混凝土结构耐久性及其设计方法科技论坛与全国第六届混凝土耐久性学术交流会论文集.北京:人民交通出版社，2004:50-55.

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[4] 王绍东，黄煜镔，王智.水泥组分对混凝土固化氯离子能力的影响[J].硅酸盐学报，2000(6):570-574.

[5] 冯乃谦，邢锋.混凝土与混凝土结构的耐久性[M].北京:机械工业出版社，2009:130-132.

[6] JTJ 27098 水运工程混凝土试验规程[S].

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[8] Thomas M D A，Bamforth P B.Modelling Chloride Diffusion inConcreteEffect of Fly Ash Slag[J].Cement and ConcreteResearch，1999，29(4):487-495.

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