| 研究生: |
劉忠侖 Liu, Zhong-Lun |
|---|---|
| 論文名稱: |
改質瀝青之工程與化學特性 Engineering and Chemical Characteristics of Polymer-Modified Asphalt |
| 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: | 2014 |
| 畢業學年度: | 102 |
| 語文別: | 中文 |
| 論文頁數: | 137 |
| 中文關鍵詞: | 苯乙烯-丁二烯-苯乙烯 、高分子改質瀝青 、相容性 、穩定劑 、相容劑 |
| 外文關鍵詞: | styrene-butadiene-styrene, polymer modified asphalt, compatibility, stabilizer, compatibilizer |
| 相關次數: | 點閱:180 下載:1 |
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本研究對於不同原油所提煉瀝青,添加添加劑與改質劑後進行比較,在相同條件下,改質瀝青樣本分別進行分析,物理性質方面,進行傳統的黏度、針入度、軟化點等物性試驗;並透過動態剪切流變儀(Dynamic Shear Rheometer, DSR)來評估不同改質瀝青材料間質流性質差異。化學性質方面,以高壓凝膠滲透層析儀(High Pressure Gel Permeation Chromatography, HP-GPC)、薄層液相層析法之火焰離子檢視器(Thin-layer Chromatography – Flame Ionization Detector, TLC-FID)和傅立葉轉換紅外線光譜儀(Fourier Transform Infrared Spectroscopy, FTIR) 分析高分子材料SBS之改質瀝青特性。最後,結合物理與化學性質的分析結果,對改善改質瀝青之相容性提出建議,建立的改質瀝青之摻配模式。改質瀝青的基底瀝青選擇,以基底瀝青的瀝青精含量較低或芳香族含量較高的相容性為佳; 改質劑選擇上,星型SBS雖具有較好的改質效果,工作性仍有改善空間,以線型SBS較為適合;SBS建議含量為5%~5.3%,含量低,易產生黏度不足的議題;含量高,工作性則會逐漸下降;穩定劑硫粉,對改質瀝青的彈性性質具正面效益,比例為3%對改善離析方面較佳;改質瀝青隨高溫儲存天數增加,軟化點可能隨之遞減。化性結果顯示,廣分布指數(PDI)隨硫比例增加而漸減,說明改質瀝青內部可能有均質化的現象;FTIR與HP-GPC的試驗結果,可應用於推估SBS含量。
The research compare different asphalt refined by crude oil and added with additives and modifiers. In the same condition, analyze polymer modified asphalt respectively. For physical properties, the tests include viscosity test, penetration test, softening point test etc. And use Dynamic Shear Rheometer to evaluate rheological properties of different polymer modified asphalt. For chemical properties, analyze characteristics of SBS modified asphalt with High Pressure Gel Permeation Chromatography, Thin-layer Chromatography – Flame Ionization Detector, and Fourier Transform Infrared Spectroscopy. Finally, combine with results of physical properties and chemical properties, and make recommendation for improving compatibility of polymer modified asphalt, and build blending model of polymer modified asphalt. Use base asphalt of lower asphaltene or higher aromatic is better in consideration of compatibility. In the choice of modifier, the radial SBS has better modified effect, but the workability has to improve. So, the linear SBS may be better choice. Lower SBS content easily generated less viscosity. Higher SBS content made the workability decrease. So, the recommended SBS content is 5%~5.3%. Adding stabilizer sulfur can enhance the elasticity of polymer modified asphalt. 3% sulfur content can improve segregation evidently. The softening point of polymer modified asphalt would decrease with staging day increasing at high temperature. The results of chemical properties showed that PDI would reduce with sulfur content increasing. The forgoing also described the interior of polymer modified asphalt existed homogenization possibly. The test results of FTIR and HP-GPC could apply to evaluate SBS content.
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校內:2019-07-22公開