Abstract:0 3 asphalt based piezoelectric composites suitable for use in asphalt pavement were prepared with PZT 5H as piezoelectric phase and asphalt as matrix with hot press molding method. The effect of preparation process, polarization conditions and the volume fraction of PZT 5H on the d33 value of the composites was studied. The dielectric properties of composites and its piezoelectric response under the dynamic loading were tested. The results indicate that the optimal volume fraction of PZT 5H is 75%, and the optimum molding pressure and molding time are 10MPa, and 3min, respectively. The optimal polarization conditions are 3kV/mm(poling field),10min(poling time) and 50℃(poling temperature). The highest values of εr and d33 are obtained to be 3295 and 537pC/N. The output voltage of 0 3 asphalt based piezoelectric properties under dynamic load is 72V and stored energy is 2592μJ.