导　　师： 张宜洛

学科专业： 080502

授予学位： 硕士

作　　者： ;

机构地区： 长安大学

摘　　要： OGFC技术自从20世纪80年代末引进我国以来,经过研究和推广已经成为我国沥青路面面层的混合料类型之一。由于不同于一般的沥青混凝土,合理选择及应用OGFC混合料的级配,保证OGFC混合料的骨架密实结构的特性与优良路用性能是OGFC混合料应用的关键。 本文依据我国OGFC实际应用情况,统计了常用的三种筑路材料/(玄武岩、辉绿岩、花岗岩/)的性能指标,研究我国OGFC混合料的矿料在不同地区的运用情况,分析OGFC矿料在我国各地区的普遍性特点。 同时,收集了从1996年至今,有关OGFC-13混合料在我国不同时期以及不同地区的应用资料,分析不同地区的OGFC级配关键筛孔的差异,研究各地区的OGFC级配的地区特征;按照OGFC混合料在不同时间段的应用情况,研究了OGFC级配发展变化的特点和规律,结果表明,OGFC-13级配从使用初期发展到现阶段具有明显的变化,并提出了现阶段我国在应用OGFC时的普遍性。 在以上研究的基础上,研究了不同岩性OGFC-13级配和混合料路用性能的关系,以及空隙率和混合料路用性能关系。结果表明,4.75mm通过率的变化对混合料的路用性能影响具有重要意义。 结合以上的调查研究,选用推荐级配为试验级配,通过掺加不同剂量木质素纤维和胶粉/(分别采用干法和湿法/),分析其对OGFC-13级配混合料的路用性能的影响研究。 Since OGFC was introduced into our country in 1988s, it has already become one of the primary bituminous mixture types in our country after research and promotion. Because of the difference between OGFC and general asphalt concrete, it is very important to select and apply the reasonable graduation of OGFC to ensure the Skeleton Dense Texture characteristics and excellent road performance of OGFC. In this paper, we accomplished the statistics on the performance index of three kinds of commonly used construction materials /(basalt、diabase、granite/) according to the practical application conditions, and researched the application of OGFC material in different regions of our country, and to analyze universal regulations of OGFC material in various regions. At the same time, we collected the data of application of OGFC-16 and OGFC-13 in different periods and regions in our country since 1996 , analyzed the differences of key sieve and researched the characteristics of OGFC grading in different regions of China. According to the application of OGFC mixture in different periods, the development features and rules of OGFC grading are researched. The research indicates that the obvious changes in OGFC-16 applications from initial stage to present stage. Then, the common characteristics of OGFC are proposed in present stage of China. Based on the above research, we also studied the relationship between OGFC-13 grading with different lithology and pavement performance of mixture, as well as porosity and pavement performance of mixture. The results showed that the influences of pass ratio through 4.75mm sieve has important significance for the pavement performance of mixture With the above investigation and research, we selected the optimum aggregate grading for test, and analyzed the effect of OGFC-13 graded mixture on pavement performance by way of adding different doses of lignin fiber and rubber powder/(separately using the dry process and wet process/) .

关 键 词： 混合料 级配规律 配合比设计 胶粉 路用性能

领　　域： [交通运输工程]