低成本高稳定性废胶粉改性沥青技术研究
发布时间：2018-09-14 19:44
【摘要】：以汽车工业化发展对道路交通发展提出的挑战为背景。本文在国内外针对废胶粉改性沥青机理研究的基础上,利用不同检测手段对影响废胶粉改性沥青性能的参数进行研究,明确了添加剂对改性沥青性能的影响,阐明了改性过程的机理,并对实验工艺条件进行了优化。既实现了改性沥青的低成本化,又保存了材料的优异性能且有利于环境保护,更重要的是改善了在沥青高温运输过程中由于废胶粉与沥青相容性差导致的离析现象,提高了胶粉改性后沥青的路面使用性能,对未来的实际应用具有一定的理论指导意义。在本论文中,利用40目胶粉通过“低温原位高剪切”法对秦皇岛AH-70型基质沥青进行改性。明确了胶粉掺量、发育条件、脱硫剂T-580、可溶硫、增塑剂SP-1068及稳定剂偏苯三酸酐对废胶粉改性沥青各项性能的影响。并依据胶粉改性沥青现有的评价方式,结合布氏旋转黏度、橡胶加工分析仪、荧光显微镜等分析手段对改性沥青的三大指标进行研究,并讨论了改性过程中各添加剂的对改性后沥青性能的影响。
[Abstract]:With the development of automobile industrialization and the development of road traffic challenges for the background. On the basis of the research on the mechanism of waste rubber powder modified asphalt at home and abroad, this paper studies the parameters affecting the performance of waste rubber powder modified asphalt by using different testing methods, and clarifies the effect of additives on the performance of modified asphalt. The mechanism of the modification process was clarified and the experimental conditions were optimized. It not only realizes the low cost of the modified asphalt, but also preserves the excellent performance of the material and is beneficial to the environmental protection. More importantly, it improves the segregation phenomenon caused by the poor compatibility between the waste rubber powder and the asphalt during the high temperature transportation of asphalt. It improves the pavement performance of asphalt modified by rubber powder, and has certain theoretical guiding significance for the practical application in the future. In this paper, 40 mesh rubber powder was used to modify Qinhuangdao AH-70 matrix asphalt by "low temperature in situ high shear" method. The effects of rubber powder content, development conditions, desulfurization agent T-580, soluble sulfur, plasticizer SP-1068 and stabilizer trimellitic anhydride on the properties of asphalt modified by waste rubber powder were determined. According to the existing evaluation methods of modified asphalt with rubber powder, combined with Brinell rotational viscosity, rubber processing analyzer and fluorescence microscope, the three indexes of modified asphalt were studied. The effect of additives on the performance of modified asphalt was discussed.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414
本文编号：2243687
[Abstract]:With the development of automobile industrialization and the development of road traffic challenges for the background. On the basis of the research on the mechanism of waste rubber powder modified asphalt at home and abroad, this paper studies the parameters affecting the performance of waste rubber powder modified asphalt by using different testing methods, and clarifies the effect of additives on the performance of modified asphalt. The mechanism of the modification process was clarified and the experimental conditions were optimized. It not only realizes the low cost of the modified asphalt, but also preserves the excellent performance of the material and is beneficial to the environmental protection. More importantly, it improves the segregation phenomenon caused by the poor compatibility between the waste rubber powder and the asphalt during the high temperature transportation of asphalt. It improves the pavement performance of asphalt modified by rubber powder, and has certain theoretical guiding significance for the practical application in the future. In this paper, 40 mesh rubber powder was used to modify Qinhuangdao AH-70 matrix asphalt by "low temperature in situ high shear" method. The effects of rubber powder content, development conditions, desulfurization agent T-580, soluble sulfur, plasticizer SP-1068 and stabilizer trimellitic anhydride on the properties of asphalt modified by waste rubber powder were determined. According to the existing evaluation methods of modified asphalt with rubber powder, combined with Brinell rotational viscosity, rubber processing analyzer and fluorescence microscope, the three indexes of modified asphalt were studied. The effect of additives on the performance of modified asphalt was discussed.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414
【参考文献】
相关期刊论文 前3条
1 袁万杰;孙长新;陈忠达;;道路石油沥青热稳定性能物化分析[J];石油沥青;2009年02期
2 张小英;于威;张建军;黄宏海;车金良;;沥青储藏稳定性研究[J];石油沥青;2010年04期
3 吴恒澜;丁雪佳;薛海蛟;李洪波;唐斌;;EVA/EPDM共混改性沥青的动态剪切流变性能[J];中国塑料;2009年05期
，本文编号：2243687
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