發(fā)布時間：2018-06-04 09:14

  本文選題：溫拌再生 + 瀝青混合料��； 參考：《東北林業(yè)大學》2016年碩士論文

【摘要】：中國道路交通經過30年的快速發(fā)展,相當數量的道路進入了大修階段,大量的廢舊瀝青混合料將在瀝青路面翻修養(yǎng)護及重建過程中產生,廢舊瀝青混合料的再生利用成為公路行業(yè)重要和急需的課題。傳統(tǒng)熱拌瀝青混合料能源消耗大,并且生產過程中會排放大量有害煙霧污染環(huán)境,不符合綠色發(fā)展的主題。在能源緊缺和環(huán)保問題日益突出的背景下,溫拌再生型瀝青混合料的研究和應用顯得尤為重要。為了最大限度利用RAP,利用玄武巖纖維抗拉強度高、與瀝青有較好粘附作用的特性,提高溫拌再生混合料的路用性能。通過摻纖維溫拌再生瀝青混合料的級配設計和性能試驗,確定最佳瀝青用量、再生劑合理用量、溫拌劑合理摻量及其對混合料降溫幅度,最終確定了不同纖維摻量下的最佳油石比和不同RAP摻量下的合理纖維摻量；分析了不同拌合方法對混合料的影響,提出了較合理的施工拌合工藝。對不同RAP摻量及不同纖維摻量的混合料進行的性能對比試驗分析表明：摻入玄武巖纖維能全面提高再生混合料路用性能,纖維的合理摻入能有效改善高RAP摻量下混合料低溫性能及水穩(wěn)定性能的不足。摻纖維溫拌再生瀝青混合料的經濟效益和社會效益進行分析可知,摻入玄武巖纖維不僅能改善溫拌再生瀝青混合料路用性能,還可節(jié)約能耗、減少排放和延長施工時效,具有良好的經濟和社會效益。
[Abstract]:After 30 years of rapid development of road traffic in China, a considerable number of roads have entered the stage of major repairs. A large number of waste asphalt mixtures will be produced in the course of asphalt pavement maintenance and reconstruction. Recycling of waste asphalt mixture has become an important and urgent task in highway industry. The energy consumption of traditional hot mix asphalt mixture is large, and a large amount of harmful smoke will be emitted in the production process to pollute the environment, which is not in line with the theme of green development. In the background of energy shortage and environmental protection problems, the research and application of warm mix recycled asphalt mixture is particularly important. In order to make the best use of rap and the high tensile strength of basalt fiber, it has better adhesion to asphalt and improves the road performance of warm mixed recycled mixture. Through the gradation design and performance test of recycled asphalt mixture mixed with fiber, the optimum asphalt content, the reasonable amount of regenerative agent, the reasonable amount of warm mix agent and the cooling range of the mixture are determined. Finally, the optimum ratio of oil stone under different fiber content and the reasonable fiber content under different RAP content are determined, and the influence of different mixing methods on mixture is analyzed, and the more reasonable construction mixing technology is put forward. The performance comparison of mixture with different RAP content and different fiber content shows that the mixing of basalt fiber can improve the road performance of recycled mixture. The reasonable blending of fiber can effectively improve the low temperature performance and water stability of the mixture with high RAP content. According to the analysis of economic and social benefits of warm mixing recycled asphalt mixture with fiber, it can not only improve the road performance of warm mix recycled asphalt mixture, but also save energy consumption, reduce discharge and prolong the construction time, which can not only improve the road performance of warm mix recycled asphalt mixture, but also reduce the discharge and prolong the construction time. It has good economic and social benefits.
【學位授予單位】：東北林業(yè)大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：U414

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本文編號：1976825