Asphalt and mixture pavement performance improving method using oyster shells

The invention relates to the field of materials, and particularly discloses an asphalt and mixture pavement performance improving method using waste oyster shells as admixtures, which mainly comprisesthe following steps of grinding oyster shells into powder as pavement asphalt filler, and carrying out dynamic shear rheology test and force ductility test at different temperatures, and testing theoptimal waste oyster shell powder dosage, namely the optimal powder-binder ratio, of the asphalt composition through a rotary viscosity test. Meanwhile, the asphalt mixture is prepared from oyster shell powder according to different ratios of filler in gradation, the optimal mixing amount and the preparation process are verified by adopting a track test, a soaking Marshall test and a trabecular bending test, and the purpose is to clarify the influence of different ratios of oyster shell powder on the pavement performance of the asphalt mixture on the basis of recycling of waste consumed shells. Therefore, the pavement