天津建设科技2024，Vol.34Issue(5)：12-14,74,4.DOI:10.3969/j.issn.1008-3197.2024.05.004
基于表面能理论的抗剥落剂-SBS沥青改善集料黏附性研究
Research on Performance and Microscopic Mechanism of Modified Diatomite SBS and High Viscosity Compound Modified Asphalt Based on Surface Energy Theory
摘要
Abstract
In order to study the effect of adhesion between the anti-spalling agent and the aggregate,SBS modified as-phalt was prepared and dosed with a quantitative amount of anti-spalling agent in this paper,comparative tests were also carried out using 70#matrix asphalt.A modified boiling test was used as a preliminary basis for judging the adhesion of asphalt-aggregate adhesion,and the contact angle method was used to obtain surface energy parameters to calculate the adhesion work to analyze the adhesion.The asphalt mixture was molded and the freeze-thaw splitting test was used to determine the water stability of the asphalt mixture and to verify the asphalt-aggregate adhesion.The 3 kinds of asphalt adhesion grades obtained by the modified boiling method are:SBS modified asphalt and SBS-A adhesion grade are grade 5,and 70#matrix asphalt adhesion grade is grade 4.The adhesion power of the asphalt with limestone was:SBS-A＞SBS-modified asphalt＞70#matrix asphalt,and the adhesion power of SBS-A increased by 7.3%compared to SBS-modified asphalt and SBS-A increased by 11.9%compared to 70#matrix asphalt.The TSR value of SBS-A asphalt mixture is 2.9%higher than that of SBS-modified asphalt mixture,and the test results fully verify that the adhesion between SBS-A and limestone is high.关键词
沥青路面/SBS改性沥青/接触角/黏附功/冻融劈裂试验/表面能/抗剥落剂Key words
asphalt pavement/SBS modified asphalt/contact angle/adhesion power/freeze-thaw splitting test/sur-face energy/anti-spalling agent分类
交通工程引用本文复制引用
潘峰,靳灿章,肖田,杨凯..基于表面能理论的抗剥落剂-SBS沥青改善集料黏附性研究[J].天津建设科技,2024,34(5):12-14,74,4.基金项目
天津市交通运输科技发展计划(2022-18) （2022-18）
