English  |  正體中文  |  简体中文  |  Items with full text/Total items : 28611/40649
Visitors : 635872      Online Users : 45
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50799

Title: Influence of aggregate content on the migration coefficient of concrete materials using electrochemical method
Authors: C.C.Yang
S.W.Cho
Contributors: 國立臺灣海洋大學:材料工程研究所
Keywords: Concrete
Migration coefficient
Coarse aggregate
Date: 2003-04
Issue Date: 2018-10-25T01:28:12Z
Publisher: Materials Chemistry and Physics
Abstract: Abstract: In order to investigate the effect of coarse aggregate content on the chloride ion migration coefficient of concrete, specimens with different coarse aggregate volume fractions and two water/cement (w/c) ratios of mortar matrix were used. The chloride ion migration coefficient of concrete is obtained using the electrochemical technique to accelerate chloride ion migration in cement-based material and the experimental results were plotted as a function of the fine aggregate volume fraction. The results are analyzed comparing experimental results and theoretical models that represent the concretes as three-phase composite materials. The three phases are the mortar matrix, the coarse aggregate, and the interfacial transition zone between the two. The chloride ion migration coefficient is used to assess the dilution, tortuosity, interfacial transition zone (ITZ) and, percolation effects of coarse aggregate in concrete. It appears that the dilution and tortuosity effects are a dominant factor affecting the chloride ion migration coefficient of concrete in the low volume fraction of coarse aggregate. As the volume fraction of coarse aggregate increases to 40 and 20% in concrete of w/c ratio 0.35 and 0.45, respectively, the ITZ with percolation effects are significantly.
Relation: 80(3) pp.752-757
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50799
Appears in Collections:[材料工程研究所] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML27View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback