【作者】 刘森；

【导师】 刘寒冰； 谢玉田；

【作者基本信息】 吉林大学 ， 交通运输工程， 2010， 硕士

【摘要】 沥青玛蹄碎石混合料(SMA德国称为Splittmastixasphalt,美国也称作Stone Matrix Asphalt)在德国研制成功并开始使用。世界上第一条SMA路面始建于60年代中期的德国,距今已30多年的历史,至今仍处于较好的服务水平。20世纪70年代欧洲很多国家开始使用SMA技术,以承受重交通荷载及较高的轮胎压力,取得了较好使用的效果,并很快普及整个欧洲,仅1990年欧洲就生产SMA 300万吨。目前欧洲许多国家,尤其是北欧国家已把SMA作为一种标准的沥青混合料写入规范,用于铺筑道路的上面层。SMA现已发展成欧洲重交通道路、机场和港区道路流行的沥青混合料,并在世界范围内推广应用。从九十年代开始,美国从欧洲引进了SMA技术,铺筑了一批试验路段并开始了大规模的系统研究。美国在SMA混合料设计上借鉴欧洲的经验,同时考虑本国气候特点,对SMA混合料的组成作了重大调整,在集料、沥青、稳定剂、设计标准和级配等方面做了相应的改变,提出了符合美国实际情况的设计和施工方法,把SMA路面技术发展到一个新的水平。SMA(沥青玛蹄脂碎石混合料)从20世纪90年代引进我国以来,以其良好的耐久性、抗滑性、高温稳定性和低温抗裂性在实际应用中得到了较好的评价。1998年起,交通部组织了SMA技术推广工作,首先在北京、辽宁、吉林、黑龙江、河北、山东、山西、江苏、广东、四川、青海、湖北、上海、内蒙古等省区开始推广应用。近几年来,SMA技术已经在公路、市政、民航等行业被广泛使用。吉林省是国内研究和使用SMA较早的省份。1991年从德国引进该项技术,1992年正式立题研究,并于1994年在国道202梅河口—草市公铁立交桥引道铺筑了试验路段,取得了较好的效果。现在,吉林省很多高等级公路已经采用SMA路面,总体情况较好。由于设计、材料、施工等原因,造成了路面使用情况有一定差异,目前还需要进一步判断SMA面层的真实状况,以便从实际应用的角度客观地评价其优越性或不足,以求不断地改善。本文以吉林省长余(长春—拉林河)高速公路路面、松原—白城一级公路和通化—辽源一级公路上面层项目为依托,对SMA混合料的路用性能进行了理论分析,通过对混合料室内试验、优化设计、试验路验证等研究,提出了适合吉林省的SMA级配,为进一步推广SMA路面在吉林省高等级公路的应用提出了建议和改进方案。该项研究对吉林省工程实践具有较强的针对性和实用性,对今后SMA技术在吉林省的应用有一定的指导意义,使沥青路面质量有所提高,同时产生了一定的经济效益和社会效益。更多还原

【Abstract】 Stone Matris Asphalt (SMA is called Splittmastixasphalt in Germany, or Stone Mixture Asphalt in America) was developed successfully and began to use in Germany. The world’s first SMA road was built in the mid-1960s of Germany which has a history over 30 years and a good level of service. Many countries in Europe started using SMA in the 1970s to tackle heavy-load traffic and big pressure of tire. For good using effect SMA became popular throughout Europe. Only in 1990,the whole output in Europe was 300 tons. At present many European countries, especially the Nordic countries have already put SMA as a standard of asphalt mixture into standard, which is used for the upper layer. Now SMA has been popular asphalt mixture in European used in heavy traffic road, airport and port road, and widely spread in the world. From the 1990s, America introduced SMA technology from Europe, paved a batch of experiment sections and started large-scale system research.Considering its characteristic of climate, America makes great adjustment of SMA on the basis of Europe experience, including aggregate, asphalt, stabilizer, gradation and standards of design, which accords with the actual situation of the America. The SMA pavement technology has been developed to a new level.The introduction of SMA in 1990s has been greatly evaluated in practical application of our country, because of its excellent durability, skid resistance, high temperature stability and low temperature crack resistance. From 1998, Ministry of communications organized the business of technology extension. Beijing, Liaoning Province and other provinces began to spread SMA. In recent years, the technology has widely used in highway, municipal works, civil aviation and other industry.Jilin is one of the provinces which study and use SMA earlier. The technology was imported from Germany and studied formally in 1992. The experiment section was paved on the Meihekou-Caoshi highway-railway flyover in 1994 and good results were obtained. There are many highway pavement using SMA in Jilin Province, the overall situation is good. For the design, materials, construction and other factors, applications of this kind of road are some difference, and something must be done to estimate the true status of SMA in order to evaluate objectively and improve continuously. Supported by the projects of Changyu expressway, Songyuan-Baicheng highway and Tonghua-Liaoyuan highway, theoretical analysis of SMA’s performance is conducted in this paper. In the basis of laboratory test, optimization design and experiment section verification, a gradation that suit to Jilin Province is proposed to make further recommendations and improvements in this province. The study has obvious pertinence and practical applicability to engineering practice of Jilin Province. It has a certain guiding significance which can make the quality of asphalt pavement improve generally. In addition, the technology bring about remarkable economic effectiveness and social benefits.更多还原