| 研究生: |
林佑任 Lin, Yu-Jen |
|---|---|
| 論文名稱: |
轉爐石應用於高速公路之績效評估 Performance Evaluation of Basic Oxygen Furnace Slag Applied to Freeways |
| 指導教授: |
陳建旭
Chen, Jian-Shiuh |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系碩士在職專班 Department of Civil Engineering (on the job class) |
| 論文出版年: | 2020 |
| 畢業學年度: | 109 |
| 語文別: | 中文 |
| 論文頁數: | 115 |
| 中文關鍵詞: | 循環經濟(Circular Economy) 、轉爐石(Basic Oxygen Furnace slag, BOF) |
| 外文關鍵詞: | Circular Economy, Basic Oxygen Furnace lag (BOF) |
| 相關次數: | 點閱:106 下載:0 |
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近年來循環經濟(Circular Economy)受到世界各國重視,轉爐石(Basic Oxygen Furnace slag, BOF)乃是煉鋼的副產品之一,再利用成為必須面對之議題。本研究評估轉爐石應用於密級配瀝青混凝土(BOF-DGAC)之路面績效,進行鋪築前後現地檢測,檢測項目包含車轍量試驗、Clegg衝擊試驗,並進行鋪面鑽心取樣,鑽心試體進行回彈模數MR及間接張力試驗,比較其耐久性、安全性及工作性質。研究結果顯示,耐久性方面,服務最久26個月之變形量仍小於輕微車轍;鋪築後CIV值均大於70,顯示鋪面材料結構強度與路基承載力良好;間接張力強度平均約為1.39MPa,回彈模數平均約為4,735MPa,顯示轉爐石應用於密級配瀝青混凝土之強度足夠,有較佳的耐久性。安全性方面,轉爐石應用於密級配瀝青混凝土之BPN值平均為68,顯示轉爐石在安全性方面皆有一定水準,透過長期現場數據的蒐集與分析,可作為提升高速公路鋪面績效及道路主管機關養護作業之參考。
In recent years, the circular economy has received attention from countries all over the world. Basic Oxygen Furnace slag (BOF) is one of the by-products of steelmaking, and reuse has become an issue that must be faced.This study evaluates the pavement performance of BOF-DGAC applied to densely graded asphalt concrete (DGAC).On-site inspection before and after paving. Testing items include rutting test and Clegg impact test. And take the pavement drill core sampling, and the drill core sample is subjected to the rebound modulus MR and indirect tension test. Compare its durability, safety and work nature. The research results show that in terms of durability, the deformation of the longest service for 26 months is still less than the slight rutting; the CIV value after paving is greater than 70, indicating that the structural strength of the paving material and the bearing capacity of the roadbed are good; the average indirect tensile strength is about 1.39MPa The average resilience modulus is about 4,735MPa, indicating that the converter stone used in dense-graded asphalt concrete has sufficient strength and better durability. In terms of safety, the average BPN value of converter stone applied to dense-graded asphalt concrete is 68, which shows that converter stone has a certain level of safety. Through long-term field data collection and analysis, it can be used to improve highway paving performance and roads. Reference for maintenance operations of the competent authority.
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