| 研究生: |
林峻央 Lin, Chun-Young |
|---|---|
| 論文名稱: |
石灰拌合方式對排水性瀝青混凝土之影響 Effects of adding lime methods on Porous Asphalt Concrete |
| 指導教授: |
蕭志銘
Shiau, Jih-Min |
| 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: | 2006 |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 74 |
| 中文關鍵詞: | 排水性瀝青混凝土 、石灰 、拌合方式 |
| 外文關鍵詞: | how to add lime, lime, porous asphalt concrete |
| 相關次數: | 點閱:132 下載:4 |
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排水瀝青混凝土擁有15%到25%的高孔隙率,能迅速將路面積水排除,其特性有減少水花飛濺和增加摩擦抗滑的作用。石灰能提高抗剝脫的能力,本研究評估何種添加石灰的方法和石灰含量多寡可提高排水鋪面的績效。
本研究利用日本排水性鋪裝技術指針中建議之配合設計法,進行排水瀝青混凝土之級配設計,決定其最佳瀝青含量後製作Marshall試體,並進行各項成效試驗。試驗項目包括透水係數試驗、穩定值流度值試驗、及不同浸泡天數(0、1、3、5、10天)下之間接張力試驗和磨耗試驗,比較不同添加石灰的方法和不同含量在排水級配之間的差異性及抗剝脫能力。
試驗結果顯示,就不同浸泡天數的間接張力而言,1%石灰含量較具有防剝之功效;就石灰拌入方式對於間接張力而言,建議先用石灰漿體拌合會有最佳的效果,乾石灰加於濕潤骨材上拌合效果也不錯;且滷化兩天的時間會比不滷化直接拌合來的好;而較不好的方法為先加在冷骨材上,其大部分試驗表現甚至比不添加石灰來的差;在穩定值試驗方面,乾拌方法(同時拌合)其穩定值比濕拌(加於濕潤骨材上或是石灰漿體拌合) 來的高。
Porous asphalt concrete is described by air void ranging from 15 to 25 percent, it allows surface water to drain through its strcture rapidly. Porous asphalt pavements can reduce vehicle pray,and improve skid resistance. Adding lime can have multiple benefits in asphalt concrete. Purposes of this research were to evaluate how to add lime and how much lime could improve the Performance of Porous Asphalt Concrete.
Objective of this research is to determine the use of AC20 asphalt affecting the performance of porous asphalt mixes . Marshall Specimens were prepared for mix design , stability , Indirect Tension test, moisture resistance and Cantabro Abrasion test .
Results of the test showed that adding 1% lime was more resistant to stripping;Treatments of aggregate were effective – either as a slurry to dry aggregate or as dry lime to wet aggregate. Marination of treated aggregates improved performance. Treatment of dry lime to dry-cold aggregate was ineffective.The results of stability showed that dry lime to aggregate had better performace than slurry or dry lime to wet aggregate.
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