▎ 摘　　要

NOVELTY - Preparing modified recycled aggregate, comprises (i) mixing polyvinyl alcohol, acrylamide and graphene dispersion, and heating to polyvinyl alcohol and acrylamide dissolve completely, (ii) cooling the mixture obtained in step (i) to room temperature, adding nano-montmorillonite and ammonium persulfate, heating up to 55-65℃ for 8-12 hours, and obtain graphene/polyvinyl alcohol/polyacrylamide nanocomposite Hydrogels, (iii) dissolving the graphene/polyvinyl alcohol/polyacrylamide nanocomposite hydrogel in deionized water to obtain a graphene/polyvinyl alcohol/polyacrylamide nanocomposite hydrogel solution, and (iv) soaking the recycled aggregate in the graphene/polyvinyl alcohol/polyacrylamide nano complex hydrogel aqueous solution, soaking, and air-drying to obtain the modified recycled aggregate. USE - The method is useful for preparing modified regenerated bone material which is useful in road construction, and used for removing snow and melting ice. ADVANTAGE - The method enables to prepare modified regenerated bone material that has excellent mechanical property and heat conduction property, and improved conductivity, and reduces the porosity of the regenerated aggregate, and improves the mechanical characteristics of the regeneration bone material. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: modified recycled aggregate, prepared by the above-mentioned method; and conductive recycled aggregate asphalt mixture, comprising 65-75 wt.% modified recycled aggregate, 5-23 wt.% machine-made sand, 4-20 wt.% steel slag, 4-5 wt.% Styrene-Butadiene-Styrene (SBS) modified asphalt and 2-4 wt.% mineral powder.