Binding material for paving interlayer as well as preparation method and application thereof

The invention discloses a binding material for paving interlayers and a preparation method and application thereof, the binding material for paving interlayers comprises the following components: asphalt and modified silicon dioxide, the mass of the modified silicon dioxide is 1-10% of that of the asphalt, the mass of the modified silicon dioxide is 1-10% of that of the asphalt, and the mass of the modified silicon dioxide is 1-10% of that of the asphalt. The modified silicon dioxide is prepared from the following raw materials in parts by weight: 3-5 parts of silicon dioxide, 3-12 parts of a silane coupling agent, 10-18 parts of a surfactant, 30-60 parts of an organic solvent and 6-10 parts of a dispersing agent. According to the bonding material obtained by combining the obtained modified silicon dioxide and asphalt, the probability of occurrence of diseases such as displacement, upheaval, falling and cracking easily occurring in current road overlay asphalt concrete is reduced, and the shear resistance of