Simulation of Chloride Diffusion in Cracked Concrete with Different Crack Patterns
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-29
Country of Publication
Egypt
No. of Pages
11
Abstract EN
Chloride-induced corrosion of steel rebar is one of the primary durability problems for reinforced concrete structures in marine environment.
Furthermore, if the surfaces of concrete structures have cracks, additional chloride can penetrate into concrete through cracked zone.
For chloride ingression into cracked concrete, former researches mainly focus on influence of crack width on chloride diffusion coefficients.
Other crack characteristics, such as chloride depth, crack shape (equal-width crack or tapered crack), crack density, and spacing, are not studied in detail.
To fill this gap, this paper presents a numerical procedure to simulate chloride ingression into cracked concrete with different crack geometry characteristics.
Cracked concrete is divided into two parts, sound zone and cracked zone.
For stress-free concrete, the diffusion coefficient of sound zone is approximately assumed to be the same as sound concrete, and the diffusion coefficient of cracked zone is expressed as a piecewise function of crack width.
Two-dimensional finite element method is used to determine chloride concentration.
It is found that, with the increasing of crack width, crack depth, and crack amount, chloride ingression will aggravate.
The analysis results generally agree with experimental results.
American Psychological Association (APA)
Wang, Xiao-Yong& Zhang, Li-Na. 2016. Simulation of Chloride Diffusion in Cracked Concrete with Different Crack Patterns. Advances in Materials Science and Engineering،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1095967
Modern Language Association (MLA)
Wang, Xiao-Yong& Zhang, Li-Na. Simulation of Chloride Diffusion in Cracked Concrete with Different Crack Patterns. Advances in Materials Science and Engineering No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1095967
American Medical Association (AMA)
Wang, Xiao-Yong& Zhang, Li-Na. Simulation of Chloride Diffusion in Cracked Concrete with Different Crack Patterns. Advances in Materials Science and Engineering. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1095967
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1095967