| 研究生: |
李政德 Lee, Cheng-Te |
|---|---|
| 論文名稱: |
瀝青混凝土拌和溫度、工程性質與冷卻速率 Evaluation of Mixing Temperature, Engineering Properties and Cooling Rate of Asphalt Mixtures |
| 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: | 2016 |
| 畢業學年度: | 104 |
| 語文別: | 中文 |
| 論文頁數: | 144 |
| 中文關鍵詞: | 剪切稀化 、拌和溫度 、鋪面降溫速率 |
| 外文關鍵詞: | Shear Thinning, Mixing Temperature, Cooling Rate of Asphalt Mixtures |
| 相關次數: | 點閱:96 下載:6 |
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本研究分為三大部份探討國內鋪面界之重要議題,包含改質瀝青拌和與滾壓溫度決定方法、改質瀝青混凝土工程性質和鋪面降溫速率。傳統上,拌和與滾壓溫度之決定方法皆根據ASTM D 2493黏度─溫度圖,以170±20 cP和280±30 cP作為拌和與滾壓溫度之依據,由於未指定量測之剪應變率,常導致拌和溫度過高,本研究考量剪切稀化(Shear Thinning)特性,確認拌和與滾壓溫度符合拌和廠狀況,實際所需之拌和溫度介於175℃至185℃之間,較傳統方法低約20℃。工程性質試驗結果顯示改質瀝青混凝土流度值較高,說明改質瀝青混凝土具彈性,可改善疲勞裂縫,張力強度比試驗與車轍試驗顯示改質瀝青混凝土抗水侵害與抗車轍性能較傳統瀝青佳。實驗室與現地進行之溫度量測結果說明,在材料、施工條件相同下,影響鋪面降溫速率之效果依序分別為(1)既有鋪面之表面溫度、(2)風速、(3)日照;降溫主要作用依次為(1)傳導、(2)對流、(3)輻射,當鋪面需於限定時間內開放交通,建議於冬季夜晚進行鋪築最佳。
This research has three major parts, containing mixing temperature, engineering properties and cooling rate of polymer modified asphalt mixtures. Nowadays, the method to determine mixing temperature does not apply to polymer modified asphalt. In this study, we consider the effect of Shear-Thinning on polymer modified asphalt before we determine mixing temperature. The result of this method provides more reasonable temperature. By using this mixing temperature, all of the engineering properties of asphalt concrete are standards compliant, except flow value. A higher flow value indicates low brittleness of polymer modified asphalt mixtures when compared to unmodified asphalt mixtures, and this does not affect the rutting resistance of mixtures. According to the research of lab and field, the factor of cooling rate of pavement is Heat Content. Under the same conditions, the factor which affect Heat Content is (1)existing surface temperature, (2)wind speed, and (3) Heat radiation, Sequentially. When being pressed for time, We recommend paving in the winter night.
陳俊廷(2016),「儲存溫度和時間對高分子改質瀝青工程性質之影響」,國立成功大學土木工程研究所論文,台南。
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