Environment-friendly cold-mixed recycled asphalt mixture and preparation method and application thereof

The invention relates to the technical field of asphalt mixture preparation, in particular to an environment-friendly cold-mixed recycled asphalt mixture and a preparation method and application thereof. The environment-friendly cold-mixed recycled asphalt mixture consists of the following components in parts by weight: 3.0-4.5 parts of modified emulsified asphalt; 1.0-2.0 parts of cement; 2.0-3.0 parts of water; 3-8 parts of a new aggregate; 80-100 parts of a waste asphalt reclaimed material; and 2-5 parts of mineral powder, wherein the modified recycled asphalt is prepared from the following components in parts by weight: 50-80 parts of asphalt, 10-15 parts of waste building pipes, 3-5 parts of an SBS modifier, 1-5 parts of an emulsifier and 0.5-1.5 parts of a stabilizer. The environment-friendly cold-mixed recycled asphalt mixture disclosed by the invention is high in waste utilization rate, reduces the production cost, has good Marshall stability and strength, and is high in safety and is not easy to caus