A FINITE DIFFERENCE CALCULATING MODEL OF CHLORIDE PENETRATING INTO CONCRETE UNDER VARIOUS FACTORS

Shi Yanghang; Luo Gang

doi:10.13204/j.gyjz200405003

Volume 34 Issue 5

Dec. 2014

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Shi Yanghang, Luo Gang. A FINITE DIFFERENCE CALCULATING MODEL OF CHLORIDE PENETRATING INTO CONCRETE UNDER VARIOUS FACTORS[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(5): 7-10. doi: 10.13204/j.gyjz200405003

Citation:

Shi Yanghang, Luo Gang. A FINITE DIFFERENCE CALCULATING MODEL OF CHLORIDE PENETRATING INTO CONCRETE UNDER VARIOUS FACTORS[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(5): 7-10. doi: 10.13204/j.gyjz200405003

Shi Yanghang, Luo Gang. A FINITE DIFFERENCE CALCULATING MODEL OF CHLORIDE PENETRATING INTO CONCRETE UNDER VARIOUS FACTORS[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(5): 7-10. doi: 10.13204/j.gyjz200405003

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A FINITE DIFFERENCE CALCULATING MODEL OF CHLORIDE PENETRATING INTO CONCRETE UNDER VARIOUS FACTORS

doi: 10.13204/j.gyjz200405003

1.
Dept.of Civil Eng.,Huaqiao Univ. Quanzhou 362011

Received Date: 2003-10-10
Publish Date: 2004-05-20

Abstract

Abstract

According to the primary channels and source of chloride penetrating into concrete, the mechanism is expounded.The kinds and their limitations of the existing calculating models are analyzed.After taking account of the effects on chloride diffusion coefficient of cement kind, mixed ratio, temperature, relative humidity and time, a calculating model of chloride penetrating into concrete based on finite difference is established.The model is better to reflect the actual situation, which has proper theoretical and practical value.
- chloride,
- erosion of concrete,
- calculating model,
- diffusion coefficient,
- finite difference

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References(8)

References

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[2] 金伟良,赵羽习.混凝土结构耐久性.北京:科学出版社,2002.10～30

[3] Nillson L O. A Numerical Model for Combined Diffusion and Convection of Chloride in Non Saturated Concrete.Sweden:Department of Building Materials,Chalmers University of Technology,1996

[4] Saetta Anna V,Scotta Roberto V. Analysis of Chloride Diffusion into Partially Saturated Concrete.ACI Materials Journal,1993(5):441～451

[5] Maekawa,Ishiea K.Service Life Evaluation of Reinforced Concrete under Coupled Forces and Environmental Actions.In:International Conference on Ion and Mass Transport in Cement Based Materials.Toronto:1999

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[7] Thomas M D A,Bamforth P B.Modeling Chloride Diffusion in Concrete;Effect of Fly Ash and Slag.Cement and Concrete Research,1999,29:487～495

[8] Steinar Helland.Assessment and Prediction of Service Life for Marine Structures--A Tool for Performance Based Requirement?In:2nd Dura Net Workshop CEN TC-104 Design of Durability of Concrete.Berlin:1999

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