流动胶浆沥青混合料(FMA)理论与设计方法  

Theory and Design Method of Fluid Mastic Asphalt Mixture(FMA)

作　　者：吴旷怀[1] 吴传海 聂桂海 蔡旭[1] 许新权 郑钰祺 黄文柯 王志祥 黄建栋 WU Kuang-huai;WU Chuan-hai;NIE Gui-hai;CAI Xu;XU Xin-quan;ZHENG Yu-qi;HUANG Wen-ke;WANG Zhi-xiang;HUANG Jian-dong(School of Civil Engineering,Guangzhou University,Guangzhou 510006,Guangdong,China;Guangdong Hualu Traffic Technology Co.Ltd.,Guangzhou 510420,Guangdong,China)

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]广东华路交通科技有限公司,广东广州510420

出　　处：《中国公路学报》2025年第2期102-113,共12页China Journal of Highway and Transport

基　　金：国家自然科学基金项目(51878193);广东省交通集团研发项目(JT2021YB20)。

摘　　要：探讨了热拌沥青混合料(Hot Mix Asphalt,HMA)组成特性与路用性能的内在联系,以及现行HMA成型或施工过程中胶浆可塑不析漏这一共同基石对沥青混合料设计、施工及沥青路面性能的影响。基于胶浆流动这一理论创新和胶浆流动填充骨架空隙的原理,提出了流动胶浆沥青混合料(Fluid Mastic Asphalt,FMA)理论框架及其胶浆流动填充(Mastic Flow for Filling Method,MaFF)设计方法,探索了FMA的多种成型工艺。设计并成型了多种典型FMA混合料,进行了路用性能评价和验证。结果表明:由于胶浆流动,FMA更易于形成紧密骨架且内部空隙率接近于0,形成新型的骨架-超密实结构。从而FMA能够在确保抗车辙的前提下,避免沥青路面水损害,提升沥青路面抵抗疲劳和反射开裂的能力以及抗老化性能。此外,胶浆流动使得FMA的表面构造能够灵活设计,从而实现路面抗滑性能设计和抗滑耐久设计。FMA胶浆用量需要有所增加以使得胶浆能够流动,采用现行工艺时施工难度可能增大,但FMA有望大幅度提升沥青混合料的性能,此外,胶浆流动使得FMA的表面构造能够灵活设计,从而实现路面抗滑性能设计和抗滑耐久设计。FMA胶浆用量需要有所增加以使得胶浆能够流动,采用现行工艺时施工难度可能增大,但FMA有望大幅度提升沥青混合料的性能,从而使FMA能够在确保抗车辙的前提下,避免沥青路面水损害,提升沥青路面抵抗疲劳、反射开裂的能力以及抗老化性能。FMA理论及其MaFF法突破了现行的HMA理论体系和设计框架,能够大幅提升路面耐久性,降低寿命周期成本和资源消耗,为沥青路面行业带来深远影响,值得进一步深入研究。This study discusses the internal relationship between the composition characteristics and pavement performance of hot mix asphalt(HMA)and the influence of the cornerstone of plastic mastic without mastic leakage on the design,construction,and pavement performance of asphalt mixtures during current HMA molding or construction processes.Based on the theoretical innovation of fluid mastic and principle of fluid mastic filling of the voids in the aggregate,a theoretical framework of the Fluid Mastic Asphalt(FMA)mixture and the Mastic Flow for Filling(MaFF)method were proposed,and various forming processes of FMA were explored.Several typical FMA mixtures were designed and formed,and their road performances were evaluated and verified.The results show that owing to the fluid mastic,FMA facilitates the formation of a tightly embedded skeleton,and the internal air voids are close to zero,forming a skeleton-ultra-dense structure.Therefore,FMA can prevent water damage to asphalt pavements with good rutting resistance performance and improve the ability of asphalt pavements to resist fatigue,reflective cracking,and aging.Additionally,the fluid mastic allows the surface structure of the FMA to be flexibly designed to realize pavement skid resistance and anti-skid durability.The asphalt content of FMA must be increased to enable mastic flow,which leads to difficulties in construction when using the current process.However,FMA are expected to significantly improve the performance of asphalt mixtures and solve the problems of pavement water damage and cracking,while ensuring anti-rutting.The FMA theory and its MaFF method break through the current HMA theoretical system and design framework.This can significantly improve the durability of pavements,reduce life cycle costs,and resource consumption.Hence,it can lead to far-reaching influence on the asphalt pavement industry,which is worthy of further study.

关 键 词：路面工程 流动胶浆沥青混合料(FMA) 胶浆流动填充设计方法 骨架-超密实结构 耐久性 

分 类 号：U414[交通运输工程—道路与铁道工程]