山东建筑大学学报2017，Vol.32Issue(5)：435-441,7.DOI:10.12077/sdjz.2017.05.005
沥青组成结构对沥青表面能的影响研究
Effects of composition structure of asphalt on its surface energy
摘要
Abstract
The influence of asphalt composition on its surface energy can provide theoretical basis for revealing the difference of adhesion between asphalt and aggregate.Based on surface energy theory, the surface energy of different asphalts was measured by the contact angle method.Furthermore,the association relationship of surface energy with macroscopic performance,four components,elemental composition and average structural unit parameters was analyzed.The results show that the contact angle method can effectively measure the surface energy of asphalt,surface energy of the four kinds of asphalt is between 17.36 ~23.1 1 mJ/m2,and shows a greater difference.There is no obvious regularity between the surface energy and the macroscopic performance.The saturate is the most important factor affecting the surface energy.The higher the content of the saturate fraction,the lower the asphaltene content,and the greater the surface energy.H,H /C and C content is the main factor affecting the surface energy,the higher H,H /C,C content and the lower the heteroatom content, the greater the surface energy.For the average structural unit parameters,the alkyl chain branching degree and the alkyl carbon rate are the main factors affecting the surface energy.The higher the alkyl carbon rate and degree of alkyl chain branching,the lower the aromatic carbon ratio and aromatic ring system,and the greater the surface energy.关键词
道路材料/沥青/表面能/组成结构/关联关系Key words
road material/asphalt/surface energy/composition structure/association relationship分类
化学化工引用本文复制引用
赵品晖,韩科超,时敬涛,毕飞,高东兴,张泽宇,杨子乔..沥青组成结构对沥青表面能的影响研究[J].山东建筑大学学报,2017,32(5):435-441,7.基金项目
重庆交通大学交通土建工程材料国家地方联合工程实验室开放基金项目(LHSYS-2016-07) （LHSYS-2016-07）
