摘要
研究了密级配沥青稳定碎石的抗剪强度与抗裂性能。通过室内试验研究和铺筑试验路,得出密级配沥青稳定碎石混合料的油石比为3.4%～3.6%时,动稳定度达到3 000次·mm^(-1)以上,沥青路面路表的回弹弯沉远小于设计弯沉。试验路通车3年后的调查结果表明,半刚性底基层沥青稳定碎石基层具有优良的抗裂性能和抗车辙性能。
It is discussed that dense-graded asphalt stabilized macadam is of excellent resistance. By means of indoor test and pavement of test road, it is found out that when ratio reaches 3.4% to 3.6%, the dynamic stability is higher than 3 000 times per millimeter; of pavement is far lower than the designed one. The investigation after 3 years on the trial shearing and cracking the asphalt-aggregate the rebound deflecion road indicates that asphalt stabilized macadam base for semi-rigid base is of excellent cracking and rutting resistance.
出处
《筑路机械与施工机械化》
北大核心
2009年第11期45-48,共4页
Road Machinery & Construction Mechanization
关键词
柔性基层
沥青稳定碎石
抗裂
抗车辙
flexible base
asphalt stabilized macadam
cracking resistance
rutting resistance
