本文選題：廢舊塑膠改性瀝青　切入點：瀝青混合料　出處：《東南大學(xué)》2015年碩士論文

【摘要】：隨著我國經(jīng)濟的快速發(fā)展,汽車保有量不斷增加,隨之而來的是越來越多的廢棄輪胎有待處理�？紤]到焚燒以及掩埋帶來的環(huán)境危害,回收利用成為處理方法的首選,其中將廢舊輪胎碾碎作為瀝青添加劑已成為一大應(yīng)用趨勢。同樣,將廢舊塑料作為添加劑以改善瀝青性能,可避免在其他行業(yè)應(yīng)用存在的困難。將廢舊塑料以及橡膠同時應(yīng)用于改性瀝青,若能夠穩(wěn)定共存,不僅可更全面地改善瀝青混合料的性能,亦能避免產(chǎn)生環(huán)境問題。論文以江蘇寶利瀝青有限公司提供的新型廢舊塑料橡膠改性瀝青為主要研究對象,通過常規(guī)試驗、SHRP試驗測試改性瀝青各方面技術(shù)性能：采用顯微鏡觀測了塑膠改性瀝青的微觀形貌；并通過離析試驗確定了新型復(fù)合改性瀝青的儲存穩(wěn)定性。其次,通過瀝青混合料室內(nèi)相關(guān)試驗,測試了塑膠復(fù)合改性瀝青的路用性能,包括高溫抗車轍性能、低溫抗裂性能、水穩(wěn)定性、耐久性能,并與常用SBS改性瀝青性能進(jìn)行對比研究。試驗結(jié)果表明,新型廢舊塑膠改性瀝青的穩(wěn)定性較好,滿足使用要求；在改善瀝青混合料性能的基礎(chǔ)上,改善了其低溫性能,在此方面略優(yōu)于SBS改性瀝青；但加入添加劑后,混合料的黏度增大,需要更高的拌合以及施工溫度。最后,選擇合適地點鋪筑試驗路段,在此基礎(chǔ)上,評價了廢舊塑膠作為改性劑的環(huán)境以及經(jīng)濟效益,并同SBS改性瀝青進(jìn)行比較,確定了其代替SBS改性瀝青的可能性。
[Abstract]:With the rapid development of China's economy, the number of cars is increasing, and more and more waste tires need to be disposed of. Considering the environmental hazards caused by incineration and burial, recycling becomes the first choice of treatment methods. Among them, crushing used tires as asphalt additive has become a trend. Similarly, waste plastics are used as additives to improve asphalt performance. Difficulties in application in other industries can be avoided. The application of both waste plastics and rubber to modified asphalt can not only improve the performance of asphalt mixture more comprehensively if it can coexist stably, but also improve the performance of asphalt mixture. The paper takes the new waste plastic rubber modified asphalt provided by Jiangsu Baoli Asphalt Co., Ltd as the main research object. The technical properties of modified asphalt were tested by SHRP test. The microscopic morphology of modified asphalt was observed by microscope, and the storage stability of new composite modified asphalt was determined by segregation test. Through laboratory test of asphalt mixture, the road performance of plastic composite modified asphalt was tested, including rutting resistance at high temperature, crack resistance at low temperature, water stability and durability. The experimental results show that the new waste plastic modified asphalt has better stability and meets the requirements of application, and improves its low temperature performance on the basis of improving the performance of asphalt mixture. In this respect, it is slightly better than SBS modified asphalt, but the viscosity of the mixture increases with the addition of additives, which requires higher mixing and construction temperature. Finally, the appropriate site is chosen to lay out the test section, and on this basis, The environment and economic benefit of waste plastics as modifier were evaluated, and compared with SBS modified asphalt, the possibility of replacing SBS modified asphalt was determined.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U414

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