| 研究生: |
簡志璁 Chien, Chih-Tsung |
|---|---|
| 論文名稱: |
再生瀝青混凝土添加焚化爐底碴之工程性質 Engineering Properties of Asphalt Concrete Mixed with Municipal Bottom Ash and Reclaimed Asphalt Pavements |
| 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: | 2008 |
| 畢業學年度: | 96 |
| 語文別: | 中文 |
| 論文頁數: | 160 |
| 中文關鍵詞: | 耐久性 、工程性質 、微觀結構 、再生瀝青混凝土 、底碴 |
| 外文關鍵詞: | bottom ash (BA), engineering properties, micro structure, durability, reclaimed asphalt pavements (RAP) |
| 相關次數: | 點閱:102 下載:2 |
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台灣近年來由於環保意識抬頭與新鮮料源短缺,對於焚化爐底碴(BA)與再生瀝青混凝土(RAP)再利用的研究已行之多年,本研究將在不同的添加含量下對再生瀝青混凝土添加焚化爐底碴進行工程性質與耐久性分析。
第一階段以再生瀝青混凝土添加規範內為基準,添加不同含量的焚化爐底碴,進行工程性質及耐久性試驗,比較再生瀝青混凝土添加焚化爐底碴的可行性研究;第二階段利用掃描式電子顯微鏡(SEM)分析不同添加含量下再生瀝青混凝土添加焚化爐底碴試體的瀝青膠漿與瀝青薄膜的包裹程度,比較其微觀結構上之差異。
結果顯示,在工程性質上,再生瀝青混凝土的老化瀝青有助於提升焚化爐底碴黏結效果較弱的部份,在耐久性實驗中,焚化爐底碴當中所含的鈣離子讓瀝青膠漿能更緊密的吸附於一般粒料的表面上,提升抗水侵害的能力,降低試體剝脫的可能性。綜合試驗結果,取代量在20%焚化爐底碴與20%再生瀝青混凝土下,依然有良好的工程性質與耐久性;在微觀結構上,發現瀝青膠漿厚度會因為細料的影響有著很大的改變,並且無法在試樣中均勻觀察到理論瀝青薄膜厚度,觀測到的瀝青薄膜厚度會較理論值為低。
Because attention to the environment in recent years and the source shortage of fresh material in Taiwan, bottom ash (BA) and reclaim asphalt pavements’ (RAP) reuse research have been done for many years. This research regards RAP mixed with BA as the substituting material. Carry on engineering properties and durability analysis in marry content of asphalt concrete mixed with RAP and BA.
The first stage is in the adding norm as RAP adds different content’s BA, and mixed with AC-20 asphalt, relatively the feasibility research which BA adds RAP by carrying on engineering properties and durability test; The second stage compare the difference on its micro structure by analyzing the asphalt colloid and asphalt thin film coating aggregates’ degree in marry content of asphalt concrete mixed with RAP and BA using the scanning electron microscope( SEM).
The results show, it contributes to improving the part of BA cohering effect with weaker result to retrieve the aging asphalt of the RAP, in engineering properties. In the durability experiment, the calcium ion included in the BA let asphalt colloid can absorbing on the surface of material more closely to improve the ability of water resistance and reduce the possibility of scaling. Comprehensive result of the experiment, the BA and RAP replacing amount are both under 20% still have well engineering properties and durability; on the micro structure, funded asphalt colloid thickness have heavy change because of the fine material influence, and unable to observe the thickness of theory asphalt thin film in the sample. The thickness of asphalt thin film will be lower than theory value.
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