The invention provides a graphene-basalt fiber composite modified asphalt mixture, which includes matrix asphalt, aggregate, mineral powder, graphene and basalt fiber. The matrix asphalt can be petroleum asphalt. The invention also provides a preparation method of the graphene-basalt fiber composite modified asphalt mixture, which includes the following steps: mixing and heating the matrix asphalt, adding and mixing the aggregate and the mineral powder, adding and mixing the graphene, and adding and mixing the basalt fiber. Graphene and basalt fiber are used for composite modification of the asphalt mixture, so that the advantages are complementary, and the road performance of the asphalt mixture is greatly improved. The graphene-basalt fiber composite modified asphalt mixture has excellent road performance, such as high-temperature stability, low-temperature crack resistance, water stability and the like.
GRAPHENE-BASALT FIBER COMPOSITE MODIFIED ASPHALT MIXTURE AND PREPARATION METHOD THEREOF
