废轮胎胶粉循环利用技术研究

发布时间：2018-05-27 10:10

本文选题：废轮胎胶粉 + 改性机理　；参考：《山东大学》2015年硕士论文

【摘要】：所谓废旧轮胎,是指被替换或者淘汰下来已经失去作为轮胎使用价值的轮胎,以及工厂产生的报废轮胎。通常被称为“黑色污染”的废旧轮胎属于不熔或难熔的高分子弹性材料,具有很强的抗热、抗生物、抗机械性,并且难以降解。利用废旧轮胎胶粉对普通沥青进行改性并生产路用混合料是一种减少“黑色污染”的有效办法,该方法主要是通过一定的生产加工工艺将废旧轮胎胶粉加入沥青当中,形成一种以轮胎胶粉作为改性剂的改性沥青结合料,然后应用于公路工程当中去。根据国外应用实践经验,由于在普通沥青中掺入的胶粉含量较大(通常要在15%以上),因此该方法不仅能够有效地利用废旧轮胎资源,并极大地减少了环境污染,同时也节约了工程材料,降低了工程造价。本文基于界面理论和溶解度理论,采用先进测试手段,对胶粉改性沥青作用机理进行深入分析；通过实验研究优化确定出室内制备工艺以指导现场生产；基于对现有沥青混合料设计方法的比选分析,确定GTM旋转剪切方法作为胶粉改性沥青混合料的最优设计方法,并优化确定了成型条件；采用SAC级配设计方法作为理论工具,以路用性能为判据,通过大量试验研究确定了废轮胎胶粉改性沥青混合料基于GTM旋转成型方式下的合理级配形式及其优化范围,并对优化设计的混合料的路用性能和疲劳性能进行了系统研究; 经室内研究成果应用于实体工程,根据胶粉改性沥青混合料特性及现有施工机械配置水平,提出现场施工质量控制方案,为废轮胎胶粉改性沥青及其混合料的应用提供理论支持和技术保障。作为一种新型路面材料,橡胶沥青利用废旧轮胎作为生产原料,可以减少黑色污染、降低路面噪声、改善路用性能、延长使用寿命、减薄路面厚度、提高行驶舒适性及安全性。
[Abstract]:The so-called waste tires are used to replace or eliminate the tires that have lost the value of the use of the tires, as well as the waste tires produced by the factory. The waste tires, usually called "black pollution", belong to the non melt or refractory polymer elastic materials, which have strong heat resistance, biological, mechanical, and difficult to degrade. The modification of the old tire rubber powder to the ordinary asphalt and the production of road mixture is an effective way to reduce the "black pollution". This method is mainly to add the waste tire rubber powder to the asphalt through a certain process of production and processing, forming a modified asphalt binder with tire rubber powder as modifier, and then applied to highway workers. According to the practice experience abroad, because the content of the rubber powder added in the ordinary asphalt is larger (usually above 15%), the method can not only effectively use the waste tire resources, and greatly reduce the environmental pollution, but also save the engineering material and reduce the cost of the project. The mechanism of the modified asphalt modified asphalt is deeply analyzed by the advanced testing method, and the indoor preparation process is optimized by the experimental study to guide the field production. Based on the analysis of the existing asphalt mixture design method, the GTM rotary shear method is determined as the optimum design of the rubber powder modified asphalt mixture. The forming conditions are determined and the forming conditions are optimized. The SAC gradation design method is used as the theoretical tool and the road performance criterion is used to determine the reasonable gradation form and optimization model of the waste rubber powder modified asphalt mixture based on the GTM rotary forming method, and the road performance of the optimized mixture is also determined. And the fatigue performance was systematically studied. The results were applied to the solid engineering through the laboratory research. According to the characteristics of the modified asphalt mixture and the existing construction machinery configuration level, the quality control scheme of the site construction was put forward. The theoretical support and technical support for the application of the waste tire rubber powder modified asphalt and its mixture were proposed. Pavement materials, rubber bitumen using waste tires as raw materials, can reduce black pollution, reduce road noise, improve road performance, prolong service life, reduce the thickness of the pavement, improve the comfort and safety of driving.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414

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