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請使用永久網址來引用或連結此文件:
http://ir.lib.ncu.edu.tw/handle/987654321/61357
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題名: | 台灣地區不同添加劑應用於改質瀝青之可行性評估;The Study in Feasibility Assessment of Different Additives on the Modified Asphalt in Taiwan Area |
作者: | 楊丞毅;Yang,Cheng-yi |
貢獻者: | 土木工程學系 |
關鍵詞: | 天然瀝青;改質瀝青;流變性質;Natural asphalt;modified bitumen;rheological |
日期: | 2013-08-16 |
上傳時間: | 2013-10-08 09:29:27 (UTC+8) |
出版者: | 國立中央大學 |
摘要: | 本研究主要目的即在探討不同天然瀝青及化學改質劑,改變添加量對於傳統瀝青膠泥各項成效的影響,經由實驗室各項基本性質試驗可了解不同改質劑以及不同添加量下的改質成效。藉此了解各種改質材料對基底瀝青的改質效果能有進一步了解,依此對國內現有改質瀝青規範和國外改質瀝青規範進行評估與探討,尋求適合台灣地區使用之改質瀝青膠泥,期望未來能提供國內道路工程各種等級之道路使用參考。 TLA與BRA作為改質瀝青,若想在台灣地區使用,除了成本因素外,最重要的就是使用的依據,若能符合國內目前之規範,在試鋪及研究上的進展將會加快許多。然而國內改質瀝青規範CNS 14184是為SBS改質劑設計,與TLA及BRA性質差異很大,因此諸多項目無法合乎標準,其中又以彈性回復與灰分相差最大。國內改質瀝青主要依據針入度及黏滯度進行分級,TLA添加20%時針入度及黏滯度相當於國內改質Ⅱ型瀝青;TLA添加30%時,瀝青膠泥接近改質Ⅲ型。添加BRA10%時,相當於改質Ⅱ型;添加20%時瀝青性質與改質Ⅲ型相似。當改質Ⅲ型瀝青添加TLA時,試驗成效良好,最關鍵的問題在於135℃時的黏滯度過高。SBR屬於高分子材料,改質後瀝青膠泥物理特性與一般改質瀝青類似,國內可依循目前國內改質瀝青規範使用。SBR添加比例1%時,改質效果不明顯;2%~3%相當於改質Ⅱ型瀝青;4%~5%可符合國內改質Ⅲ型規範;添加6%時,135℃的黏滯度太高,不建議使用。 Purpose of this study is to explore the different natural bitumen and chemical modifiers, different amounts affect the effectiveness of the traditional asphalt, the use of basic laboratory tests can understand the different nature of the modifier and the different dosage under the modified results. To understand a variety of materials on a substrate modified bitumen modifier effect can have a better understanding, and so on existing domestic and foreign norms modified bitumen modified bitumen specifications for evaluation and discussion, to seek suitable for use in Taiwan modified asphalt, hopes that the future can provide various levels of domestic road works road use. TLA and BRA as modifier for asphalt, if you want to use in Taiwan. In addition to cost, the important point is to use the basis that meet the domestic current specification. However, CNS 14184 is design for SBS that is very different with TLA and BRA. Based primarily on domestic modified bitumen penetration and viscosity grading, TLA hour with 20% penetration and viscosity equivalent to the domestic type Ⅱ modified asphalt TLA add 30%, close to the modified asphalt mastic type Ⅲ. Add BRA10%, the equivalent of the modified type Ⅱ adding 20% modified asphalt properties and type Ⅲ similar. When the modified asphalt type Ⅲ add TLA, the test proved to be effective, the most critical problem is that 135 ℃ when the viscosity is too high. SBR are polymer materials, modified physical properties of asphalt mastic modified bitumen generally similar domestic may follow the current domestic modified bitumen standard use. Add a proportion of 1% SBR, modified effect is not obvious 2% to 3% of the equivalent type Ⅱ modified asphalt 4% to 5% may be modified in line with domestic Ⅲ type specification adding 6%, 135 ℃ viscous too high, not recommended. |
顯示於類別: | [土木工程研究所] 博碩士論文
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