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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/32058

Title: THE STUDY OF CHLORIDE ION TRANSPORTBEHAVIOR OF MORTAR UNDER DIFFERENTSTORING ENVIRONMENT TEMPERATURES
Authors: Shih-Han Weng;Chung-Chia Yang;Shih-Wei Cho;Kuo-Cheng Yang
Contributors: NTOU:Institute of Materials Engineering
國立臺灣海洋大學:材料工程研究所
Keywords: chloride;aggregates volume fractions;temperature
Date: 2012
Issue Date: 2012-06-15T07:16:28Z
Publisher: Journal of Marine Science and Technology
Abstract: abstract:This study presents the chloride ion transport behavior ofmortar from accelerated chloride migration test (ACMT). The water/cement ratio of mortars is 0.45, and the five volumefractions of fine aggregates (0%, 15%, 30%, 50% and 60%)were evaluated. After stored under different environmenttemperatures (25°C, 40°C, 60°Cand 80°C), the chloride ionpassing through specimens was carried out with ACMT. Fromthe Nernest-Planck equation and modified Fick’s second law,test data could be calculate the chloride migration coefficientof non-steady-state and steady-state. For mortar structure,dilution and tortuosity effects are positive effect to resist thepenetration of Chloride ion. On the contrary, ITZ and perco-lation effects are negative effect to resist the penetration ofChloride ion. Thus the migration coefficients of mortar at60% volume fractions of fine aggregates is higher than othermixes because of ITZ and percolation effects.
Relation: 20(3), pp.290-294
URI: http://ntour.ntou.edu.tw/handle/987654321/32058
Appears in Collections:[材料工程研究所] 期刊論文

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