摘要
测定沥青与不同液体的接触角,利用Owen-Wendt法确定沥青的表面自由能,考察不同抗剥落剂及其与多聚磷酸的复配对沥青表面自由能的影响。结果表明:抗剥落剂的加入增加了沥青的表面自由能,提高了沥青-集料界面黏附能力,可增强沥青混合料的抗水损害能力;抗剥落剂与多聚磷酸的复配可降低沥青的表面自由能。
The surface free energy of the asphalt binder was determined using the Owen-Wendt method by determining the contact angles between asphalt binders and different probe liquids.The effects of different anti-stripping agents and its complex with polyphosphoric acid on the surface free energy of asphalt binder were evaluated.The results indicate that the anti-stripping agents increase the surface free energy of asphalt binder and the adhesion ability between asphalt and aggregate,which enhances the moisture damage resistance of asphalt.The addition of anti-stripping agents with polyphosphoric acid can reduce the surface free energy of asphalt binder.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第2期162-165,共4页
Journal of China University of Petroleum(Edition of Natural Science)
基金
美国联邦公路局项目(DTFH61-07-P-00183)
关键词
沥青
表面自由能
抗剥落剂
水损害
接触角
asphalt binder
surface free energy
anti-stripping agent
moisture damage
contact angle
作者简介
魏建明（1979-），男（汉族），山东曹县人，工程师，博士，从事道路沥青的生产与评价工作。
