Research on Viscosity of Asphalt Mortar

In order to study the influence of filler on viscosity of mortar, the viscosity of mortar prepared with different filler type and FB was tested. The tests results show that type of filler has great influence on mortar viscosity, and the change of viscosity of mortars is obvious with the increasing of FB. German filler test and dry compaction test were also conducted to evaluate the influence. There have near 30°C difference among construction temperature of mortar with different filler type and FB, therefore it is necessary to revise the current method to confirm mixture construction temperature considering the influence of filler on viscosity of mortar.