| 研究生: |
林晉哲 Lin, Jin-Zhe |
|---|---|
| 論文名稱: |
添加不同再生料含量對瀝青混凝土之影響 |
| 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: | 2004 |
| 畢業學年度: | 92 |
| 語文別: | 中文 |
| 論文頁數: | 78 |
| 中文關鍵詞: | 耐久性 、鬆弛模數 、癒合 、疲勞壽命 |
| 外文關鍵詞: | RAP |
| 相關次數: | 點閱:47 下載:2 |
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由於道路鋪面工程所使用之瀝青混凝土具可回收再利用特性,其刨除料於加工處理後,經嚴格之品質管制即可再度鋪築於道路上,而其研究成果大多顯示,使用適當RAP下,不僅能有效增加各績效表現,且更符合環保的需求。本研究採用現場之回收料作為研究材料,分析其工程性質及鋪面績效。並在不同再生瀝青混凝土添加比例0%、20%、40%、60%和80%的重量百分比下,求取其與耐久性、疲勞特性等相關性,最後將實驗所得之數據加以分析與評估,使能用於工程上之應用。
本研究使用AI之再生瀝青混凝土配合設計,求取所需之瀝青、粒料等性質,並以馬歇爾及SGC兩種夯壓方法製作試體,進行耐久性及疲勞性質分析。對間接張力試驗而言,再生瀝青混凝土(RAC)具有較佳之抗張效果,但不代表整體效能因此提升。在浸水剝脫試驗方面,利用SGC夯打出較高孔隙率(7±1%)之試體,並於孔隙飽和度達55~80%下,進行試驗,結果顯示RAC對抗水侵害能力產生負面之影響。由能量觀點來看,同樣也有相同的趨勢,且由能量損失分析指出,當RAP添加含量超過40%時,RAC之抗水侵害能力將明顯下降。
於疲勞性質方面,不論在鬆弛模數、疲勞壽命、癒合效應中皆顯示出:添加RAP對再生瀝青混凝土抵抗疲勞破壞皆無正面之幫助。且由癒合指數發現,RAP添加量達到60及80%時,其癒合效果相當不明顯,因此建議RAP添加量不宜超過40%。
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