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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/64824

    Title: 工程障壁混凝土受硫酸鹽侵襲之劣化行為及速率推估
    Authors: 張哲維;Chang,Che-Wei
    Contributors: 土木工程學系
    Keywords: 硫酸鹽侵蝕;擴散係數;反應動力學
    Date: 2014-07-29
    Issue Date: 2014-10-15 14:28:19 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 摘要
    The final disposal of low-level radioactive waste calls for engineered barriers for containment of the waste. Since concrete is a major component of the engineered barriers, the durability of concrete under adverse environment is of great importance for safety disposal of the wastes.

    This study aims at studying the durability of concrete, attacked by sulphate ions in the laboratory. The diffusion coefficient of concrete under sulphate attack was determined from laboratory specimens immersed in sulphate solution for varying period of time. Then the reaction kinetics of sulphate in concrete material was adopted to calculate the internal stress, strain, such that the time and depth of spalling can be estimated. Finally, the degradation rate of concrete with for different mixes can be determined. It was found that the concrete designed for the highly integrated containers exhibits improved ability in resisting sulphate attack than traditional concrete mixes.
    Appears in Collections:[土木工程研究所] 博碩士論文

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