沥青混合料优化设计在工程中的应用研究  

Research on optimization of asphalt mixture in engineering project

作　　者：柴彩萍[1] Chai Caiping(Shaanxi College of Communication Technology,Xi’an 710018,China)

机构地区：[1]陕西交通职业技术学院

出　　处：《山西建筑》2019年第20期116-117,共2页Shanxi Architecture

摘　　要：旨在探讨美国Superpave20设计标准在我国工程应用中,沥青混合料配合比优化设计思路。以工程实际中AC-19沥青混凝土配合比设计为依托,研究将我国现行规范与美国Superpave20设计标准相结合,以空隙率和矿料间隙率为主要控制指标,进行沥青混合料的配合比优化设计时,混合料的路用性能能否得到改善。结果表明,调整后的沥青混合料具有更高的高温稳定性和水稳性。可见,该配合比优化设计思路在工程实际中切实可行,可为道路工作人员进行沥青混合料配合比设计提供参考。The paper aims at discussing the optimal design of asphalt mixture ratio of American Superpave20 design standard in Chinese engineering application.Based on the design of mix ratio of AC-19 asphalt concrete in engineering practice,the paper studies whether the road performance of asphalt mixture can be improved when the mix ratio of asphalt mixture is optimized by combining the current specifications of China with the design standard of Superpave20 in the United States,and taking voidage and voids in the mineral aggregate as the main control indexes.The results show that the modified asphalt mixture has higher high temperature stability and water stability.It can be seen that the optimal design idea of asphalt mixture ratio is feasible in engineering practice and can provide reference for road workers to design asphalt mixture ratio.

关 键 词：级配设计 空隙率 矿料间隙率 

分 类 号：U414[交通运输工程—道路与铁道工程]