沥青结合料高温性能评价指标研究综述OA

Using different indicators to evaluate the high temperature performance of the same asphalt binder may get different results.In order to quickly and accurately analyze the high temperature perform-ance of asphalt binders,it's very important to select a suitable evaluation index.Firstly,this article sum-marizes the limitations of conventional indicators such as penetration,softening point,60℃dynamic vis-cosity,and rutting factor in evaluating the high temperature performance of asphalt binders.Secondly,new indicators are introduced,including modification rutting factor G#/(sinδ)9,viscous part of complex shear modulus Gv and non-recoverable creep compliance Jnr,then the characteristics of these new indicators are analyzed and research results obtained by using each indicator are reviewed.Finally,this paper puts forward sugges-tions for the revision of relevant norms in my country and the future development is prospected.