Durable high-modulus thermal-regeneration mixture as well as preparation method and applications thereof

The invention relates to a durable high-modulus thermal-regeneration asphalt mixture, which comprises NO.50 pavement petroleum asphalt, new mineral aggregate and an asphalt pavement recovered material, the ratio of the petroleum asphalt formed by NO.50 pavement petroleum asphalt and used petroleum asphalt to mineral materials formed by the new mineral material and the used mineral material in parts by weight is 100:(5.5-6.5); the percentages of the new mineral material and the used mineral material in the mineral materials are respectively 50%-70% and 30%-50%. A preparation method comprises the following steps: respectively heating the mineral materials and the asphalt pavement recovered material to 190-200DEG C and 100-140DEG C, then mixing for 60-90s, then heating the NO.50 pavement petroleum asphalt the temperature of which is controlled at 165-175DEG C, and then mixing for 60-90s, to obtain the asphalt mixture, the temperature of which is controlled at 165-175DEG C and the abundance coefficient K of which is more than or equal to 3.6. The pavement thickness of the asphalt mixture is 6-17cm. The durable high-modulus thermal-regeneration asphalt mixture has the advantages of good stability, high modulus, excellent anti-fatigue and anti-water damage properties and low cost.