厂拌乳化沥青冷再生技术在市政道路基层中的应用研究

发布时间：2018-01-18 05:20

  本文关键词：厂拌乳化沥青冷再生技术在市政道路基层中的应用研究　出处：《河北工业大学》2015年硕士论文　论文类型：学位论文

  更多相关文章： 沥青路面回收材料 乳化沥青 冷再生技术 准确体积法

【摘要】：随着道路交通流量的大幅增长,车辆超载等情况日趋严重,路面的损坏也在加速。对于翻修改建的道路,会产生大量的废弃旧沥青路面材料,这对资源以及环境都造成了很严重的影响。本文针对这一问题进行了研究,对沥青路面层回收材料(RAP)再利用,通过对RAP料进行各种实验证实,它可以代替新石料,作用在不同道路的不同结构层上。使用乳化沥青冷再生设计,将沥青回收料作为配合比设计原材料,对乳化沥青冷再生混合料进行摊铺、碾压,并检测路用性能,再次验证符合施工标准。但是仍会存在局部问题,因此,本文提出了一个新的设计方法,准确体积法设计,并通过拉压强度试验、劈裂试验等对这种方法进行了验证,评价混合料的工作和易性,并确定最佳含水量及拌和用水量。准确体积法设计的混合料性能比传统设计方法优异,适用于施工验收。这样不仅解决了废旧沥青可能影响环境的问题,还开发了一种新的资源。
[Abstract]:With the rapid growth of the traffic flow, the overloading of vehicles is becoming more and more serious, and the damage of the road surface is also accelerating. A large number of abandoned old asphalt pavement materials will be produced for the renovation and reconstruction of the road. This has caused a very serious impact on the resources and environment. This paper studies this problem and reuses the recycled material of asphalt pavement layer, which is proved by various experiments on RAP materials. It can replace new stone and act on different structure layers of different roads. Using emulsified asphalt cold recycling design, asphalt recovery material as mix design raw material, emulsified asphalt cold recycled mixture is spread. Rolling and testing the performance of the road again to verify that meet the construction standards. But there will still be local problems. Therefore this paper proposes a new design method the accurate volume method design and through the tensile strength test. The split test was used to verify the method, to evaluate the work and ease of the mixture, and to determine the optimum moisture content and mixing water consumption. The performance of the mixture designed by the accurate volume method is superior to that of the traditional design method. It not only solves the problem that the waste asphalt may affect the environment, but also develops a new resource.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414
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本文编号：1439617