In order to broaden the reuse way of granulated blast furnace slag powder and explore the possibility of its application in asphalt pavement engineering,granulated blast furnace slag powder and limestone powder with the mass ratios of 0%,25%,50%,75%and 100%were used to prepare asphalt mortar with 5 kinds of filler-asphalt ratios.Through routine tests,dynamic shear rheological test,curved beam rheological test,and Brookfield viscosity test,the variation law of asphalt mortar performance of granulated blast furnace slag powder with slag powder dosage and powder-binder ratio was studied.Through l...