Modeling of chloride transport coupled with enhanced moisture conductivity in concrete exposed to marine environment

被引：85

作者：

Iqbal, Prince O'Neill ^{[1
]}

Ishida, Tetsuya ^{[1
]}

机构：

[1] Univ Tokyo, Concrete Lab, Dept Civil Engn, Bunkyo Ku, Tokyo 1138565, Japan

来源：

CEMENT AND CONCRETE RESEARCH | 2009年 / 39卷 / 04期

关键词：

Chloride convection; Diffusivity; Marine environment; Sorption; Moisture conductivity;

D O I：

10.1016/j.cemconres.2009.01.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this research, the chloride penetration in concrete is modeled under marine environment loadings. Moisture migration model is enhanced to simulate the sorption flux under submerged wetting after long exposure to drying. The non-ideal viscosity of flow in the porous media is modified according to the nature of micro-pore structure by modeling the sensitivity of different porous networks (dense and coarse) to react towards the external environment The strong sorption flux generated as a result of wetting and drying cyclic exposure is modeled by applying hydraulic pressure at the exposed surface. Chloride profiles are then simulated by coupling the enhanced moisture conductivity model with chloride transport model. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：329 / 339

页数：11

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