摘要
通过对112国道洋河路段的废旧沥青进行三大指标与集料级配进行测定,与70号道路石油沥青的性质和规范级配进行对比分析,发现废旧沥青老化明显,具体表现为软化点上升,延度与针入度均有明显下降。对旧沥青掺加不同量再生剂,测定其性能,得到最佳掺入量。
Three indexes and aggregate gradation of waste asphalt in Yanghe section of national highway 112 were measured.Compared with the properties and standard gradation of No.70 petroleum asphalt used on road,it was found that the aging of waste asphalt was obvious,specifically,softening point has increased,and ductility and penetration have decreased obviously.The best dosage of old asphalt was obtained by measuring the properties of different amount of regenerant.
作者
闫纲龙
李章珍
樊旭英
于东超
窦伟鹏
YAN Gang-long;LI Zhang-zhen;FAN Xu-ying;YU Dong-chao;DOU Wei-peng(Hebei Institute of Architecture and Civil Engineering,Zhangjiakou,Hebei 075000)
出处
《河北建筑工程学院学报》
CAS
2019年第3期43-46,共4页
Journal of Hebei Institute of Architecture and Civil Engineering
基金
河北建筑工程学院校级科技创新基金(基金编号,XB201902)
