According to the technical specification for highway asphalt pavement regeneration on the proportion of asphalt mixture,this paper depends on the Heilongjiang province transportation investment group co.,LTD.Owner-ship highway quality improvement(phase ii)A2-1 bid,the proportion of plant heat regeneration AC-20 asphalt mix-ture example design,through the Marshall experiment to determine the optimal asphalt dosage of 4.5%when water damage performance,high temperature stability and other road performance meet the requirements.The results show that the performance of AC-20 asphalt mixture in the plant meets the specification requirements,and can effectively save asphalt and stone materials,and the pavement performance is good.
关键词
厂拌热再生/沥青混合料/洗刨料/配合比设计
Key words
plant mixed hot regeneration/asphalt mixture/washing and planing materials/mix design