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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.17 No.1
- 발행연도
- 2016.1
- 수록면
- 53 - 66 (14page)
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초록· 키워드
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Currently, most of the investigations on chloride diffusion were based on the experiments and simulations concerning single cation type chlorides. Chloride diffusion associated with dual or multi cation types was rarely studied. In this paper, several groups of diffusion experiments are conducted using chloride solutions containing single, dual and multi cation types. A multi-ionic model is also proposed to simulate the chloride diffusion behavior in the experimental tests. The MATLAB software is used to numerically solve the nonlinear PDEs in the multi-ionic model. The experimental and simulated results show that the chloride diffusion behavior associated with different cation types is significantly different. When the single cation type chlorides are adopted, it is found that the bound rates of chloride ions combined with divalent cations are greater than those combined with monovalent cations. When the dual/multi cation type chlorides are adopted, the chloride bound rates increase with the Ca2+/Mg2+ percentage in the source solutions. This evidence indicates that the divalent cations would markedly enhance the chloride binding capacity and reduce the chloride diffusivity. Moreover, on the basis of the analysis, it is also found that the complicated cation types in source solutions are beneficial to reducing the chloride diffusivity.
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참고문헌 (28)
참고문헌 신청
Amiri, O. / 2006 / Modelling of chloride-binding isotherm by multispecies approach in cement mortars submitted to migration test / Mag. Concrete Res 58(2):93~99
Arya, C. / 1990 / Factors influencing chloride binding in concrete / Cement Concrete Res 20(2):291~300
Arya, C. / 2014 / Modelling chloride penetration in concrete subjected to cyclic wetting and drying / Mag. Concrete Res 66(7):364~376
Chatterji, S. / 1999 / Transportation of ions through cement based materials : Part 3 Experimental evidence for the basic equations and some important deductions / Cement Concrete Res 24(7):1229~1236
Delagrave, A. / 1997 / Chloride binding capacity of various hydrated cement systems / Adv. Cement Based Mater 6(1):28~35
Arya, C. / 1990 / Factors influencing chloride binding in concrete / Cement Concrete Res 20(2):291~300
Arya, C. / 2014 / Modelling chloride penetration in concrete subjected to cyclic wetting and drying / Mag. Concrete Res 66(7):364~376
Chatterji, S. / 1999 / Transportation of ions through cement based materials : Part 3 Experimental evidence for the basic equations and some important deductions / Cement Concrete Res 24(7):1229~1236
Delagrave, A. / 1997 / Chloride binding capacity of various hydrated cement systems / Adv. Cement Based Mater 6(1):28~35
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