生物基复合沥青及其混合料的路用性能研究

Study on Road Performance of Biobased Composite Asphalt and Its Mixture

寻求石油沥青的替代材料、开发新能源、寻求可再生资源成为可持续交通发展的新方向。生物质热解得到的生物沥青是石油沥青的一种替代材料。首先对市售植物基生物沥青进行酯化处理,制备酯化生物沥青,然后将其以不同比例与基质沥青和硬质沥青进行复配,从而制备出生物基复合沥青并对其性能进行研究。实现生物沥青较大比例对石油沥青的替代,对于道路领域的降本增效和助力双碳目标的实现具有重要意义。

Seeking alternative materials for petroleum asphalt,developing new energy,and seeking recycled resources have become the new directions of sustainable transportation development.The bio-asphalt from bio-pyrolysis is an alternative material for petroleum asphalt.Firstly,esterified bio-asphalt was prepared by esterifying the commercial plant-based bio-asphalt,and then it was mixed with matrix asphalt and hard asphalt in different proportions to prepare the biobased composite asphalt to study its performance.This paper can realize the substitution of bio-asphalt for petroleum asphalt with a large proportion,which was of great significance for reducing cost improving efficiency in the road industry,and reaching the carbon peaking and carbon neutrality goals.