基于表面能的掺消石灰沥青黏附性分析  

Adhesion analysis of asphalt mixed with hydrated lime based on surface energy

作　　者：韩森[1] 李微[1] 刘梦梅[1] 刘亚敏[1] 马英新[1] HAN Sen;LI Wei;LIU Mengmei;LIU Yamin;MA Yingxin(Key Laboratory for Special Areal Highway Engineering of Ministry of Education, Chang′an University, Xi′an, Shaanxi 710064, 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

出　　处：《江苏大学学报（自然科学版）》2020年第4期491-496,共6页Journal of Jiangsu University：Natural Science Edition

基　　金：陕西省交通科技项目(15-04K)。

摘　　要：为分析消石灰对基质沥青与酸性石料黏附性的影响,以表面能理论为基础,分别在干燥和潮湿两种条件下,比较SK90^#、中海90^#、克炼90^#、SK70^#、中海70^#和现代70^#等6种基质沥青掺加消石灰前后与花岗岩的黏附功大小,并通过改进的水煮试验,对黏附功理论的试验结果进行进一步验证.研究结果表明:在掺入消石灰后,6种沥青的总表面能参数减小7.6%~10.3%,而表面能极性分量的数值和所占比例均增大;沥青与花岗岩的黏附功提升明显,抵抗水损害能力增强,且沥青和花岗岩的黏附功试验与水煮试验结果有着显著的关联性,由此量化了消石灰在改善基质沥青与酸性石料黏附性方面的效果.To analysis the effect of hydrated lime on improving the adhesion work between asphalt and acid stone,six kinds of asphalt of SK90^#,Zhonghai90^#,Kelian90^#,SK70^#,Zhonghai70^#and Kelian70^#were selected.Based on the surface energy theory,the adhesion work between asphalt and granite was evaluated before and after mixed with hydrated lime under dry and humid conditions.The laboratory boiled test was used to validate the adhesion work.The results show that the total surface energy parameters of the six kinds of asphalt are decreased by 7.6%~10.3%after the hydrated lime is mixed,while the values and proportions of the polar components of surface energy are increased by the adhesion of asphalt and granite.The adhesion work values are increased significantly,and the ability to resist water damage is enhanced.The adhesion work results of asphalt and granite are significantly correlated with the results of water boiling tests,and the effect of hydrated lime for improving the adhesion of matrix asphalt and acid stone is quantified.

关 键 词：沥青 酸性石料 表面能 黏附性 消石灰 

分 类 号：U414[交通运输工程—道路与铁道工程]