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研究生: 張兆斌
Chang, Chao-Pin
論文名稱: 老化作用對瀝青-纖維膠漿性質的評估
指導教授: 陳建旭
Chen, Jian-Shiuh
學位類別: 碩士
Master
系所名稱: 工學院 - 土木工程學系
Department of Civil Engineering
論文出版年: 2003
畢業學年度: 91
語文別: 中文
論文頁數: 116
中文關鍵詞: 流變試驗TFOT老化試驗PAV老化試驗韌性試驗瀝青-纖維膠漿
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  • 多孔性瀝青混凝土在歐洲與日本等國已有多年的使用經驗,由於空隙含量大,所以能增加排水的效果,進而增加雨天抗滑的能力與減少噪音的產生。但在台灣高溫多雨的環境下,鋪面若含較高的空隙,便使得瀝青薄膜與空氣的接觸面積增加,反而加速瀝青老化的效應,因此瀝青老化的問題更顯得重要。在多孔性瀝青混凝土中,添加纖維能防止垂流的情況發生,亦可增加薄膜的厚度,並延緩老化的發生。所以本研究選定四種不同的纖維進行TFOT與PAV老化試驗,針對物理試驗、韌性試驗與流變試驗,探究老化前後各纖維的添加是否有影響。
    由各項試驗結果評估各瀝青-纖維膠漿對老化影響可知,長化學纖維在針入度與黏滯度評估抗老化能力較佳,在韌性試驗上具較高之強度。短化學纖維的效果低於長化學纖維,但也有相同的趨勢。木質纖維在針入度與黏滯度評估抗老化效果隨纖維添加量增加而增加,就韌性試驗而言,木質纖維強度雖低於化學纖維但具有較高韌性。而礦物纖維在針入度與黏滯度評估抗老化效果上不理想,效果不如其他纖維顯著,在韌性試驗的表現上雖具有較高的韌性值,但缺乏強度,所以添加礦物纖維效果較差。各纖維添加量之抗老化效果分別為木質纖維0.3%、礦物纖維0.4%、短化學纖維0.3%與長化學纖維0.3%之抗老化效果較佳。

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    摘要 Ⅰ 誌謝 Ⅱ 目錄 Ⅲ 表目錄 Ⅵ 圖目錄 Ⅶ 第一章 緒論 1 1.1 前言 1 1.2 研究動機 2 1.3 研究目的 2 1.4 研究範圍 3 第二章 文獻回顧 4 2.1 瀝青材料 4 2.1.1 瀝青的化學性質 4 2.1.2 瀝青的物理性質 6 2.2 瀝青-纖維膠漿 6 2.2.1 纖維種類 7 2.2.2 纖維的特性與在瀝青混凝土的應用 7 2.3 瀝青的老化 8 2.3.1 短期老化 10 2.3.2 長期老化 10 2.3.3 老化因子 10 2.3.4 老化與空隙間的關係 13 2.2.5 纖維體積含量與老化之關係 14 2.3.6 老化的預估模式 15 2.4 瀝青流變參數與鋪面績效之關係 18 2.4.1 質流參數與鋪面破壞之關係 19 2.4.2 SHRP瀝青績效規範 20 第三章 研究計畫 22 3.1 研究流程 22 3.2 試驗材料 24 3.2.1 瀝青黏結料 24 3.2.2 纖維材料 24 3.3 瀝青-纖維膠漿之拌合方式 26 3.4 試驗方法與設備 26 3.4.1 瀝青-纖維膠漿耐久性試驗 26 3.4.2 瀝青物性試驗 29 3.4.3 韌性試驗 30 3.4.4 動剪流變儀 33 第四章 試驗結果與討論 35 4.1 瀝青膠漿物性試驗 35 4.1.1 膠漿之針入度試驗 35 4.1.2 膠漿軟化點試驗 44 4.1.3 瀝青膠漿之黏度試驗 48 4.2 韌性試驗 56 4.2.1 AC-20瀝青老化前後之韌性試驗 56 4.2.2 瀝青-纖維膠漿老化前後之韌性試驗 58 4.2.3 瀝青膠漿的韌性值與黏性值 68 4.3 瀝青膠漿之流變試驗 72 4.3.1基底瀝青AC-20流變參數 73 4.3.1.1 AC-20瀝青老化前後之流變參數 73 4.3.1.2 AC-20瀝青老化前後之損失正切 74 4.3.2 瀝青-纖維膠漿流變參數 76 4.3.2.1 瀝青-纖維膠漿老化前後之流變參數 76 4.3.2.2瀝青-纖維膠漿老化前後之損失正切 82 4.3.3 膠漿流變參數與鋪面績效之關係 86 第五章 結論與建議 88 5.1 結論 88 5.2 建議 89 參考文獻 91 附錄 95

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