Ultrathin paving high modulus asphalt mixture as well as preparation method and evaluation method thereof

The invention discloses an ultrathin paving high modulus asphalt mixture as well as a preparation method and an evaluation method thereof, belonging to the field of road construction materials. The invention aims at providing the ultrathin paving high modulus asphalt mixture which is excellent in high temperature rutting resistance, better in low temperature anti-cracking performance and good in workable performance; the asphalt mixture is prepared from the following components: aggregate, matrix asphalt, a liquid warm mixing agent, a high modulus asphalt modifying additive and mineral powder,wherein the liquid warm mixing agent is a surfactant type warm mixing agent; the high modulus asphalt modifying additive is a low-melting-point multi-chain polyolefin modifier. The ultrathin paving high modulus asphalt mixture provided by the invention also can be used for grouting seal of road repair besides road pavement. 本发明公开了种超薄铺装高模量沥青混合料制备方法及其评价方法，属于道路建筑材料领域。旨在提供种高温抗车辙性能优异、低温抗裂性提升、施工和易性好的超薄铺装高模量沥青混合料，其包括如下组分：集料、基质沥