经济型橡胶沥青混合料路用性能研究

发布时间：2018-01-04 11:26

本文关键词：经济型橡胶沥青混合料路用性能研究　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：在公路建设中运用废旧轮胎橡胶沥青，不仅可以改善路面性能，解决路面问题，延长路面寿命，而且可以充分回收利用废旧轮胎，变废为宝，节约橡胶资源，减少废旧橡胶轮胎因占用土地资源而造成的环境污染。然而，橡胶沥青路面的油石比一般在6.5%~8.0%，初期建设成本较高，投资风险高，制约了橡胶沥青路面的大范围推广应用。本课题以降低橡胶沥青路面的成本为目的，以降低橡胶沥青路面油石比为手段，对裂解橡胶沥青的性质和生产技术进行了研究，并将裂解橡胶沥青用于密级配混合料，分析密级配裂解橡胶沥青混合料的路用性能，以期对推广橡胶沥青的应用提供技术支持。主要研究内容包括，通过分析加工条件对橡胶沥青裂解反应的影响，确定裂解橡胶沥青生产的温度和裂解剂掺量；对裂解橡胶沥青混合料的进行配合比设计，对比分析基质沥青、普通橡胶沥青、裂解橡胶沥青混合料的路用性能。最后，分析裂解橡胶沥青的经济效益、社会环境效益。试验研究表明，采用低油石比的裂解橡胶沥青混合料在技术上是可行的，，经济上是合理的；在工程中，裂解橡胶沥青路面的推广应用符合我国当前建设节约型社会、发展循环经济、建设生态文明、构建和谐社会的政策。
[Abstract]:The application of waste tire rubber asphalt in highway construction can not only improve the pavement performance, solve the pavement problems, prolong the pavement life, but also fully recycle used tires, turn waste into treasure, and save rubber resources. Reduce the environmental pollution caused by waste rubber tires because of the occupation of land resources. However, the asphalt pavement is generally at 6.580, the initial construction cost is higher, investment risk is high. It restricts the wide application of rubber asphalt pavement. In order to reduce the cost of rubber asphalt pavement and reduce the ratio of asphalt to stone, the properties and production technology of cracking rubber asphalt are studied in this paper. And the cracking rubber asphalt is used in the dense gradation mixture to analyze the pavement performance of the cracking rubber asphalt mixture in order to provide technical support for the application of rubber asphalt. The main research contents include. By analyzing the effect of processing conditions on the cracking reaction of rubber asphalt, the temperature and the amount of pyrolysis agent are determined. The mixture ratio of cracking rubber asphalt mixture is designed, and the road performance of base asphalt, ordinary rubber asphalt and cracking rubber asphalt mixture is analyzed. Finally, the economic benefit of cracking rubber asphalt is analyzed. Social and environmental benefits The experimental results show that the pyrolysis rubber asphalt mixture with low asphalt ratio is feasible in technology and reasonable in economy. In the project, the popularization and application of cracking rubber asphalt pavement accord with the policy of constructing economy society, developing circular economy, constructing ecological civilization and constructing harmonious society in our country.
【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

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