Viscosity reducer for asphalt recycled material, method of preparing viscosity reducer for asphalt recycled material and method for applying the same to recycled asphalt concrete material

A method of preparing a viscosity reducer for asphalt recycled material, comprising:

• weighing 10 wt % to 40 wt % of a surface active dispersant, 20 wt % to 40 wt % of a penetrant, 1 wt % to 5 wt % of a plasticizer, 0 wt % to 5 wt % of a an emulsifier, and a remaining proportion of a diluent, respectively;
• putting the surface active dispersant and the penetrant into a stirring tank;
• heating up a temperature of the stirring tank to from 40° C. to 70° C., and stirring at a rotation speed of 300 rpm to 500 rpm for 10 minutes to 15 minutes;
• maintaining the temperature, and adding the diluent and stirring at the rotation speed for 10 minutes to 15 minutes;
• adding the plasticizer and stirring at the rotation speed for 15 minutes to 30 minutes to form a mixture;
• and
• cooling the mixture to a room temperature.

A method for applying a viscosity reducer for asphalt recycled material to a recycled asphalt concrete material, comprising:

• providing the recycled asphalt concrete material, wherein the recycled asphalt concrete material comprises an aged asphalt;
• adding a new asphalt;
• and
• mixing the recycled asphalt concrete material and the new asphalt evenly at a temperature of from 145° C. to 180° C., adding the viscosity reducer for asphalt recycled material, and mix continuously and evenly at the temperature to obtain an asphalt concrete regenerated material;
• wherein the viscosity reducer for asphalt recycled material comprises a surface active dispersant, and the surface active dispersant comprises a plurality of hydrophilic ends and a plurality of lipophilic ends, and
• wherein after the plurality of lipophilic ends are adsorbed on a surface of the aged asphalt, the agglomerated aged asphalt is dispersed through a charge repulsion of a same charge among each of the plurality of hydrophilic ends, so as to reduce an asphalt viscosity of the recycled asphalt concrete material.

A method for applying a viscosity reducer for asphalt recycled material to a recycled asphalt concrete material, comprising:

• mixing the recycled asphalt concrete material and a new concrete material at a temperature of from 145° C. to 180° C. evenly to form a first recycled material mixture, wherein the recycled asphalt concrete comprises an aged asphalt;
• adding a new asphalt into the first recycled material mixture, and mixing the first recycled material mixture and the new asphalt at the temperature to form a second recycled material mixture;
• and
• adding the viscosity reducer for asphalt recycled material into the second recycled material mixture, and mixing continuously the second recycled material mixture evenly at the temperature to obtain an asphalt concrete regenerated material,
• wherein the viscosity reducer for asphalt recycled material comprises a surface active dispersant, and the surface active dispersant comprises a plurality of hydrophilic ends and a plurality of lipophilic ends, and
• wherein after the plurality of lipophilic ends are adsorbed on a surface of the aged asphalt, the agglomerated aged asphalt is dispersed through a charge repulsion of a same charge among each of the plurality of hydrophilic ends, so as to reduce an asphalt viscosity of the recycled asphalt concrete material.