Modeling of chloride transport coupled with enhanced moisture conductivity in concrete exposed to marine environment | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

6864862

Reference Type

Journal Article

Title

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

Author(s)

Iqbal, PO; Ishida, T; ,

Year

2009

Is Peer Reviewed?

Yes

Journal

Cement and Concrete Research
ISSN: 0008-8846

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

Location

OXFORD

Page Numbers

329-339

DOI

10.1016/j.cemconres.2009.01.001

Web of Science Id

WOS:000265320700010

Abstract

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.