聚合物硫磺改性剂制备和改性沥青性能研究

发布时间：2018-04-25 18:16

本文选题：沥青 + 硫磺　；参考：《西安石油大学》2015年硕士论文

【摘要】：当前我国公路建设快速发展,特别是高速公路通车里程逐年快速增长。道路沥青作为应用最广的路面用材料,市场需求巨大。由于道路沥青自身耐受性的限制,在交通流量非常大的使用环境下,公路路面容易出现车辙、开裂等现象。改善路面性能,延长路面使用寿命,节约建设投资,是我国公路建设中面临的亟需解决的问题。在这种情况下,新铺设的沥青路面使用改性沥青代替普通沥青以延长路面使用寿命。本文围绕以硫磺为主原料,添加废胶粉、碳粉、脱油沥青母粒以及不同的硫化氢抑制剂等制备聚合物硫磺沥青改性剂颗粒、制备过程中H_2S释放量测定方法、配方优化和路面性能优化等方面对沥青改性进行研究,并对沥青改性剂以适当比例添加在沥青中制成沥青混合料的环保性能和路面性能进行测试。结果表明:添加聚合物硫磺沥青改性剂的沥青混合料在路面性能方面,抗车辙能力得到了显著提高,水稳定性也得到了很大的改善,能够满足高等级公路的相关要求。
[Abstract]:At present, highway construction is developing rapidly in our country, especially highway traffic mileage is increasing rapidly year by year. As the most widely used pavement material, road asphalt has a huge market demand. Due to the limitation of asphalt tolerance, road pavement is prone to rutting and cracking in the environment of high traffic flow. Improving pavement performance, prolonging pavement service life and saving construction investment are urgent problems in highway construction in China. In this case, the new asphalt pavement uses modified asphalt instead of ordinary asphalt to prolong the pavement service life. In this paper, polymer sulfur pitch modifier particles were prepared by adding waste rubber powder, carbon powder, deoiling asphalt masterbatch and different hydrogen sulfide inhibitors. The modification of asphalt was studied in the aspects of formula optimization and pavement performance optimization. The environmental protection performance and pavement performance of asphalt mixture were tested by adding asphalt modifier to asphalt in proper proportion. The results show that the pavement performance of asphalt mixture with polymer sulfur asphalt modifier has been significantly improved, and the water stability has been greatly improved, which can meet the related requirements of high grade highway.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414

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