The performances of 40% TLA modified asphalt with different ash contents after ash subsidence were tested comparably according to the engineering practice in the First Loop Expressway of Fo-shan City.The results show that penetration,residual penetration ratio,ductility and mass loss ratio of the TLA modified asphalt will reduce,but its penetration index,softening point,equivalent fragile point,viscosity and relative density will increase along with the increase of ash contents.Generally,the influence of as...