工业废渣在沥青路面中的应用技术研究

发布时间：2018-01-16 22:05

本文关键词：工业废渣在沥青路面中的应用技术研究　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：本课题研究针对一种工业废渣污染环境及二次利用附加成本高的现状，提出通过一定的方法，以内掺的方式作为改性剂改性沥青，或者以外掺剂的形式加入沥青混合料，将其应用于道路沥青路面中，在提高沥青路面使用性能的同时解决工业废渣的去处，达到变废为宝、节能环保的目的，同时也对我国经济的可持续发展，缓解环境压力起到实践指导作用。课题研究以工业废渣在沥青混合料中的适用性为主要研究内容。首先对工业废渣改性沥青的应用方法进行研究，，从改性机理、工业废渣的基本技术性质等方面着手，分析影响工业废渣发挥改性作用的关键因素，并通过试验对工业废渣改性工艺进行研究，确定合理的改性工艺参数组合。继而以拟定合理的改性工艺研究工业废渣添加数量对改性效果的影响。根据已有试验研究结果，分别以湿法、干法以及工业废料为主材的添加剂外掺方式，利用工业废渣进行沥青混合料路用性能试验，分析不同方法及相关参数变化对混合料路用性能的影响。研究结果表明：在一定掺量范围，工业废渣能起到沥青改性剂的作用，能够显著改善沥青的高温性质，但同时降低了沥青的低温性质；以干法的方式外掺工业废渣或者工业废渣类添加剂，在一定掺量范围能提高所制备沥青混合料的高温稳定性及水稳定性。本课题试验研究认为，将工业废渣应用到沥青路面具备可行性，能达到提高沥青路面使用性能并解决工业废渣的去处的目的，具有一定的经济效益和社会效益，应用前景广阔。
[Abstract]:In view of the environmental pollution of industrial waste residue and the high cost of secondary utilization, the paper puts forward some methods, which can be used as modifier to modify asphalt. Or the form of external admixture added asphalt mixture, it is used in the road asphalt pavement, in order to improve the performance of asphalt pavement and solve the industrial waste residue, to achieve the purpose of turning waste into treasure and saving energy and environmental protection. At the same time, it also plays a practical guiding role in the sustainable development of our economy and the relief of environmental pressure. The main research content is the applicability of industrial waste slag in asphalt mixture. Firstly, the application method of industrial waste slag modified asphalt is studied from the modification mechanism. Based on the basic technical properties of industrial waste slag, the key factors influencing the modification of industrial waste slag are analyzed, and the modification process of industrial waste slag is studied through experiments. A reasonable combination of modification process parameters was determined, and then the effect of the amount of industrial waste slag on the modification effect was studied by formulating a reasonable modification process. According to the experimental results, the road performance test of asphalt mixture was carried out by using industrial waste residue as additives, which were made of wet process, dry process and industrial waste as main material respectively. The influence of different methods and related parameters on pavement performance of mixture is analyzed. The results show that the industrial waste slag can play the role of asphalt modifier in a certain amount range, and can improve the high temperature property of asphalt significantly, but reduce the low temperature property of asphalt at the same time. Adding industrial waste residue or industrial waste slag additives in dry way can improve the high temperature stability and water stability of the prepared asphalt mixture in a certain range. The application of industrial waste residue to asphalt pavement is feasible. It can improve the performance of asphalt pavement and solve the problem of industrial waste residue. It has certain economic and social benefits and has a broad application prospect.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414;U416.217

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