西藏地区废胎橡胶粉改性沥青的应用前景研究  

Application Prospect of Waste Rubber Powder Modified Asphalt in Tibet

作　　者：苏江 田荣燕 唐靖武 吴金岳 SU Jiang;TIAN Rongyan;TANG Jingwu;WU Jinyue(Tibet University,Lhasa Tibet 850000;Southeast University,Nanjing Jiangsu 211189;Tibet Kumquat IntelligentTechnology Co.,Ltd.,Lhasa Tibet 850000)

机构地区：[1]西藏大学,西藏拉萨850000 [2]东南大学,江苏南京211189 [3]西藏金橘智能科技有限公司,西藏拉萨850000

出　　处：《河南科技》2019年第1期98-101,共4页Henan Science and Technology

基　　金：自治区级大学生创新创业训练计划项目"AR沥青路面胶粉满意细度及掺量研究"(2018QCX015)

摘　　要：西藏地处青藏高原,平均海拔在4 000m以上,年日照高达3 000h,具有紫外线辐射强、昼夜温差大、土质差、冻融等特殊的高原环境条件,所以西藏地区沥青路面的损坏速度、沥青材料及施工方法等并不能完全根据一般地区已有的实践经验。在高原特殊条件下借鉴应用国内外现有成熟的沥青路面修建技术时必须进行验证与改进,以提高西藏地区沥青路面的使用性能和寿命。因此,基于国内外对废胎橡胶粉改性沥青的研究,探索适用于西藏地区公路建设的橡胶粉改性沥青显得尤为重要。对比分析废胎橡胶粉改性沥青中的橡胶粉掺量和各类沥青的性能发现,西藏地区不宜采用SBS改性沥青,宜采用SBR改性沥青;废胎橡胶粉改性沥青的高低温性能优于SBR改性沥青,其更适用于高原地区的公路建设,也必将在西藏地区迅速发展并得到广泛运用。Tibet is located in the qinghai-tibet plateau,at an average altitude of 4 000 meters,the years up to 3 000 hours of sunshine,with strong ultraviolet radiation,big temperature difference between day and night,poor soil quality and special plateau environment,such as freezing and thawing,so the Tibet region damage of the asphalt surface speed,asphalt material and construction method do not completely according to the general area of the existing practical experience,under the condition of the plateau special reference to application of asphalt pavement construction of existing mature technology at home and abroad must be validated and improved,in order to improve the Tibetan areas on the surface of the asphalt performance and life span.Therefore,it is particularly important to explore the rubber powder modified asphalt suitable for highway construction in Tibet based on the domestic and foreign research on waste tire rubber powder modified asphalt.Comparing and analyzing the rubber powder content in waste tire rubber powder modified asphalt and the performance of various asphalts,it was found that SBS modified asphalt should not be used in Tibet,but SBR modified asphalt should be used;the high and low temperature performance of waste tire rubber powder modified asphalt was better than SBR modified asphalt,and it was more suitable for highway construction in Plateau area,and it would also develop rapidly and be widely used in Tibet area.

关 键 词：废胎橡胶粉改性沥青 SBR改性沥青 高低温性能 沥青路面 

分 类 号：U414[交通运输工程—道路与铁道工程]