橡胶沥青在路面养护工程中的应用技术研究硕士学位专业论文64767345.docVIP

专业硕士学位论文 橡胶沥青在路面养护工程中的应用技术研究 Study on application technology of rubber asphalt in pavement maintenance engineering A Thesis Submitted for the Degree of Master Candidate：Zhu Dong Supervisor：Prof. Ma Feng Chang’an University, Xi’an, China  摘 要 随着经济和汽车工业的发展，我国的汽车使用量越来越大，而大量的废旧汽车轮胎的处理也成为了一项重要的研究课题。 本文以橡胶沥青技术在浙江的研究和应用为背景，结合新昌江拔线的工程案例，从橡胶沥青的性能、评价指标，橡胶沥青的配合比设计以及橡胶沥青的生产工艺等几个方面进行了研究，并就以下内容进行了试验： 1、新昌橡胶沥青试验路段ARAC-13集料采用玄武岩，同时添加占集料2%的矿粉； 2、ARAC-13混合料配合比设计根据新昌项目特点，结合《橡胶沥青及混合料设计施工技术指南》的要求，采用了断级配密实骨架嵌挤式级配，采用马歇尔击实法（双面各75次），击实温度控制在175～180℃； 3、采用的集料毛体积相对密度2.8，初始油石比采用6.5%，采取双面75次制作马歇尔试件，经过试验确定ARAC1-13的最佳油石比为7.0%。 结合江拔线试验路段的铺设应用，并对该路段橡胶沥青混合料的使用情况进行了跟踪检测，为橡胶沥青在路面养护工程中的应用提供了数据和技术支持。通过研究，得出如下结论： 1、从试验结果来看，ARAC1-13沥青混合料各项体积指标、水稳定性能、高温性能均满足要求。 2、试验结果表明，橡胶沥青混合料回弹模量值要高于改性沥青混合料，说明橡胶沥青混合料强度要优于改性沥青混合料，抗变形能力更强。 关键词：橡胶沥青，配合比，评价指标，生产工艺 Abstract With the development of economy and the automobile industry, Chinas automobile use is more and more, and the processing of a large number of scrap tires has become an important research topic. This paper takes the rubber asphalt technology research and application in Zhejiang as the background, combined with the new Changjiang pull line engineering case, from the performance, the evaluation index of asphalt rubber, compound rubber asphalt was studied more than several design and rubber asphalt production technology and other aspects, and carries out the experiment on the following contents: 1.Xinchang test section of asphalt rubber ARAC-13 aggregate by basalt, while adding powder for aggregate 2%; 2.Mix design according to the characteristics of the project, Xinchang 2 ARAC-13 mixture, combined with the rubber asphalt and mixture design and construction technical guidelines requirements, the fault graded dense skeleton using block extrusion type gradation, using Marshall compaction method (75 sides), compaction temperature control at 175 to 180 DEG c; 3.The aggregate gross volume relative density 2.8, than the 6.5% initi