Modified asphalt mortar based on oily sludge pyrolysis residues, and preparation method thereof

The invention relates to modified asphalt mortar based on oily sludge pyrolysis residues, and a preparation method thereof. The method comprises the following steps: mixing the oily sludge pyrolysis residues with a preset substance in a dry state to prepare a filler; adding water into the filler to prepare a viscous fluid; standing the viscous fluid for a preset time to prepare a mixture; performing drying treatment on the mixture to prepare a mixed filler; and preparing the mixed filler into the modified asphalt mortar. The modified asphalt mortar prepared by the invention is residues subjected to mineral powder composite modification, and the high-temperature performance of the modified asphalt mortar is obviously superior to that of mineral powder asphalt mortar. The low-temperature performance of the modified oily sludge pyrolysis residues is obviously superior to that of mineral powder asphalt mortar. After the oily sludge pyrolysis residues replace part of mineral powder and are modified by the slaked l