High-viscosity cold-mixed and cold-laid fine thin overlay asphalt concrete and preparation method thereof

The invention discloses high-viscosity cold-mixed and cold-laid fine thin overlay asphalt concrete. The high-viscosity cold-mixed and cold-laid fine thin overlay asphalt concrete comprises the following components: (a) aggregate and (b) high-viscosity cold-mixed and cold-laid emulsified modified asphalt, wherein the aggregate of the component (a) is basalt stone. The proportion of each component in the invention is as follows: the component (a) is 80-82 wt% of aggregate, and the component (b) is 10-12 wt% of high-viscosity cold-mixed and cold-laid emulsified modified asphalt; the total percentage is 100%. The high-viscosity cold-mixed and cold-laid fine thin asphalt concrete adopts single-particle-size aggregate and is combined with rubber wheel rolling, so that surface smoothness and large surface macroscopic structure can be ensured, tire noise is effectively absorbed, noise is reduced, wear resistance and skid resistance are realized, driving safety and driving comfort are improved, and compared with a hot