沥青混合料目标配合比动态设计流程  

Dynamic Design Flow of Target Mix Ratio of Asphalt Mixture

作　　者：郝晟 HAO Sheng(Tianjin Municipal Engineering Design&Research Institute Co.Ltd.,Tianjin 300392,China)

机构地区：[1]天津市政工程设计研究总院有限公司,天津300392

出　　处：《天津建设科技》2023年第4期26-30,共5页Tianjin Construction Science and Technology

摘　　要：针对传统沥青混合料目标配合比设计只考虑备料初期的矿料组成,无法代表后续备料的实际状况,提出了基于目标配合比实现的沥青混合料动态设计流程。结合备料进程,将目标配合比分为3个阶段,考虑合成级配的变异性,结合3个阶段的备料权重,计算备料全过程目标配合比,实现矿料备料数量与比例的动态调整。该流程能够有效代表现场矿料的实际组成,使沥青混合料的组成结构符合预期效果,进而保证其路用性能。The traditional design of target mix ratio is a static process,which only considers the mineral composition at the initial stage of preparation,and cannot represent the actual situation of subsequent material preparation,this paper proposes a dynamic design flow of asphalt mixture based on target mix ratio.Combined in preparation process,the paper divides proportion of the target into three stages,considering the variability of synthetic grading,combination of three phase material weight,to calculate the whole process of target mixture ratio,and realize the amount of ore materials preparation and proportion of dynamic adjustment.This process can effectively represent the actual composition of the site ore,make the composition structure of the asphalt mixture meet the expected effect,and then ensure its road performance.

关 键 词：目标配合比 沥青混合料 动态设计 

分 类 号：U414[交通运输工程—道路与铁道工程]