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Influence of aggregates on chloride diffusion coefficient into mortar

被引：232
作者：
Caré, S [1 ]
机构：
[1] Lab Cent Ponts & Chaussees, F-75732 Paris 15, France
来源：
CEMENT AND CONCRETE RESEARCH | 2003年 / 33卷 / 07期
关键词：
interfacial transition zone; diffusion; transport properties; chloride; mortar;
D O I：
10.1016/S0008-8846(03)00009-7
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In order to determine the influence of aggregates on chloride ion ingress, mortar specimens were cast with different aggregate size distribution and the same aggregate volume content. One side of the specimen was in contact with alkaline solution containing sodium chloride. The process of chloride ingress is due to diffusion. The effect of the interfacial transition zone (ITZ) around aggregate and of the tortuosity due to aggregates have been taken into account for interpreting the experimental data obtained. These two competing effects have been quantified by using the theory of composite materials. It appears that the diffusion coefficient varies as a function of the ITZ volume content and of the tortuosity. (C) 2003 Published by Elsevier Science Ltd.
引用
收藏
页码：1021 / 1028
页数：8
相关论文
共 17 条
[1]   A review of the work of the RILEM TC 159-ETC: Engineering of the interfacial transition zone in cementitious composites [J].
Bentur, A ;
Alexander, MG .
MATERIALS AND STRUCTURES, 2000, 33 (226) :82-87
[2]   AFREM test procedures concerning chlorides in concrete: Extraction and titration methods [J].
Chaussadent, T ;
Arliguie, G .
MATERIALS AND STRUCTURES, 1999, 32 (217) :230-234
[3]  
Christensen R. M., 1979, Mechanics of composite materials
[4]   Influence of the interfacial zone on the chloride diffusivity of mortars [J].
Delagrave, A ;
Bigas, JP ;
Ollivier, JP ;
Marchand, J ;
Pigeon, M .
ADVANCED CEMENT BASED MATERIALS, 1997, 5 (3-4) :86-92
[5]   Macroscopic modeling of the diffusive transport: Contribution of upscaling techniques [J].
Dormieux, L ;
Lemarchand, E .
OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES, 2000, 55 (01) :15-34
[6]  
Francois R., 2001, REV FRANCAISE GENIE, V5, P309
[7]   Measuring chloride diffusion coefficients from non-steady state diffusion tests [J].
Francy, O ;
Francois, R .
CEMENT AND CONCRETE RESEARCH, 1998, 28 (07) :947-953
[8]   Effect of drying on cement-based materials pore structure as identified by mercury intrusion porosimetry -: A comparative study between oven-, vacuum-, and freeze-drying [J].
Gallé, C .
CEMENT AND CONCRETE RESEARCH, 2001, 31 (10) :1467-1477
[9]   Analytical formulas for interfacial transition zone properties [J].
Garboczi, EJ ;
Bentz, DP .
ADVANCED CEMENT BASED MATERIALS, 1997, 6 (3-4) :99-108
[10]   THE EFFECT OF DESICCATION ON THE POROSITY AND PORE STRUCTURE OF FREEZE-DRIED HARDENED PORTLAND-CEMENT AND SLAG-BLENDED PASTES [J].
KUMAR, A ;
ROY, DM .
CEMENT AND CONCRETE RESEARCH, 1986, 16 (01) :74-78
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