不同类型温拌剂对沥青混合料路用性能影响及其效能评价  

Effects of different types of warm-mixed agents on pavement performance of asphalt mixtures and its efficiency evaluation

作　　者：张争奇[1] 张天天 王相友 石荣杰 ZHANG Zhengqi;ZHANG Tiantian;WANG Xiangyou;SHI Rongjie(Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang′an University,Xi′an,Shaanxi 710064,China;Zhejiang Highway and Water Transport Engineering Supervision Co.,Ltd.,Hangzhou,Zhejiang 310004,China;Shaanxi Transportation Holding Group Co.,Ltd.,Xi′an,Shaanxi 710038,China)

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 [2]浙江公路水运工程监理有限公司,浙江杭州310004 [3]陕西交通控股集团有限公司,陕西西安710038

出　　处：《江苏大学学报（自然科学版）》2022年第6期711-718,共8页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51008031)。

摘　　要：为评价不同类型温拌剂效能,并推荐其适用地区,选取PRLT、Sasobit、Aspha-min及HH-XⅡ等不同降黏机理的温拌剂,通过SGC旋转压实试验、热力学分析及路用性能试验,分析不同类型温拌剂对SBS改性沥青混合料降温效果、能源消耗及路用性能的影响.同时,基于灰色关联分析法评价4种温拌剂的效能.试验结果表明:4种温拌剂均能降低混合料的拌和温度与压实温度,其中PRLT的降温节能效果最佳,并能大幅度降低能源消耗;Sasobit能够大幅提升混合料的高温稳定性,可用于高温重载地区;PRLT改善了混合料的低温抗裂性及水稳定性,但对高温稳定性不利,适用于季冻区沥青路面建设;Aspha-min沥青混合料的低温抗裂性最优,可用于严寒地区;HH-XⅡ对混合料的高温稳定性和低温抗裂性均产生不利影响,但对水稳定性有利,考虑用于降雨量大的地区;PRLT与混合料性能的关联度最大,综合表现最好.To evaluate the effectiveness of different types of warm-mixed agents and recommend the applicable areas, the warm-mixed agents with different viscosity reduction mechanisms of PRLT, Sasobit, Aspha-min and HH-X Ⅱ were selected. SGC rotary compaction test, thermodynamic analysis and pavement performance test were carried out, and the effects of the types of warm-mixed agents on cooling effect, energy consumption and pavement performance of the asphalt mixture were investigated. The efficiencies of four warm-mixed agents were evaluated based on grey correlation theory. The results show that the mixing and compaction temperatures of SBS modified asphalt mixture can be reduced by four warm-mixed agents with different viscosity reduction mechanisms, and the best cooling effect can be obtained by PRLT with greatly reduced energy consumption. The high temperature performance can be improved by Sasobit, and Sasobit can be used in high temperature and heavy load areas. The low temperature and water stability performance can be improved by PRLT, but PRLT has adverse effects on high temperature performance, so it is suitable for asphalt pavement construction in seasonal freezing areas. Aspha-min asphalt mixture has the best low temperature performance and can be used in severe cold areas. HH-X Ⅱ has negative effect on the high and low temperature performance of asphalt mixture, while the water stability can be improved by HH-X Ⅱ, and HH-X Ⅱ can be used in areas with heavy rainfall. PRLT has the greatest correlation with the performance of warm mix mixture, and it has the best overall performance.

关 键 词：沥青混合料 温拌剂 路用性能 降温效果 灰色关联理论 

分 类 号：U414[交通运输工程—道路与铁道工程]