严寒地区橡胶沥青及混合料适用性研究

Research on Applicability of Rubber Asphalt and Mixture in Severe Cold Area

文章基于严寒地区特殊的应用环境和国内外学者对橡胶沥青及混合料的研究成果,提出严寒地区橡胶沥青的评价指标和生产工艺、筛孔通过率和油膜厚度等橡胶沥青混合料设计的关键指标,并通过对比分析橡胶沥青与SBS改性沥青及其混合料低温性能,得出粗颗粒橡胶沥青更适合应用于严寒地区的结论。本研究可为橡胶沥青在严寒地区的推广应用提供借鉴。

Based on the special application environment in severe cold areas and the research results of rubber asphalt and mixture by scholars at home and abroad,this paper puts forward the evaluation indexes of rubber asphalt in severe cold areas and the key indexes of rubber asphalt mixture design,such as production technology,key sieve passing rate and oil film thickness.Through comparing the low temperature performance of rubber asphalt with that of SBS modified asphalt and their mixtures,it is concluded that coarse-grained rubber asphalt is more suitable for application in severe cold areas.The results can provide reference for the promotion and application of rubber asphalt in severe cold areas.