乳化沥青冷再生混合料路用性能及结构组合研究

发布时间：2018-01-27 02:03

本文关键词： 冷再生乳化沥青 ANSYS 配合比设计结构组合研究　出处：《辽宁工程技术大学》2015年硕士论文　论文类型：学位论文

【摘要】：进入二十一世纪之后,我国新建公路基本处于饱和状态,新建公路的脚步已经放缓,现已经进入路面的大修期,而前期修筑的各等级公路大部分即将到达使用年限,各种病害问题陆续显现,传统旧路挖除并新建路面的方式产生大量的废旧路面材料,其路面废弃料的放置与处理方式不仅对环境造成污染,还会加重环保部门的负担。所以对废旧沥青路面材料的回收利用研究有一定的现实意义。基于国内外的研究成果,对不同再生技术的优劣进行分析,针对典型的三级公路在我省的具体情况,选择厂拌乳化沥青冷再生作为主要技术铺筑试验路基层。研究选用水泥作为稳定剂,以劈裂试验和马歇尔稳定度试验作为控制指标,对乳化沥青冷再生混合料配合比进行设计,初步确定再生混合料中各项材料的掺量。对废旧沥青路面材料再生后的劈裂强度、抗压强度和抗压回弹模量等主要力学指标进行研究,分析了再生混合料的路用性能,最终确定废旧沥青路面材料的具体掺量。然后,对含有再生层的路面结构进行设计。通过ANSYS有限元软件进行模拟、分析并评价含有再生层路面结构的整体性能,推荐试验路结构组合。最后,本文通过试验路的铺筑对冷再生的施工工艺和施工质量管理进行研究。
[Abstract]:After 21th century, the new highway in our country is basically saturated, the pace of the new highway has slowed down, has entered the road repair period. However, most of the pre-built highways are about to reach their useful life, and the problems of various diseases appear one after another. A large number of waste pavement materials are produced by the traditional way of excavating and building new roads. The disposal and disposal of pavement waste materials not only pollute the environment. Also will increase the burden of environmental protection departments. So the recycling of waste asphalt pavement materials has a certain practical significance. Based on the research results at home and abroad, the advantages and disadvantages of different recycling technologies are analyzed. In view of the concrete situation of typical third-grade highway in our province, cold regeneration of emulsified asphalt was selected as the main technical paving test road base. Cement was selected as stabilizer. Based on split test and Marshall stability test, the mixture ratio of emulsified asphalt cold recycled mixture is designed. The main mechanical indexes of recycled asphalt pavement such as splitting strength, compressive strength and modulus of compressive resilience were studied. The road performance of recycled mixture is analyzed and the concrete content of waste asphalt pavement material is determined. Then the pavement structure with recycled layer is designed and simulated by ANSYS finite element software. This paper analyzes and evaluates the overall performance of pavement structure with regenerated layer, and recommends the structure combination of test road. Finally, this paper studies the construction technology and construction quality management of cold regeneration through the paving of test road.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414

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