Sup20沥青混合料VMA指标的重要意义  

A Brief Overview of the Importance of VMA Index of Sup20 Asphalt Mixture

作　　者：王涛 WANG Tao(Jiangsu Branch of China Communications Third Navigation Engineering Bureau Co.,Ltd.)

机构地区：[1]中交第三航务工程局有限公司江苏分公司

出　　处：《广东建材》2024年第2期20-22,共3页Guangdong Building Materials

摘　　要：本文通过简要论述Sup20配合比设计中存在的VMA技术指标问题,展开一些基础论述,并简要概述了VMA指标对于沥青混合料设计的重要性,以及存在问题后如何及时去调整设计,最终能够设计出优秀的配合比。对比了高速和地方国省干线道路使用的结果,验证了VMA指标对于长寿命沥青路面的重要贡献,帮助初学者尽快领悟悟Sup20的设计精髓,最大程度发挥该种结构带来的优秀效果。This article briefly discusses the VMA technical indicators in the design of Sup20 mix proportions,and provides some basic discussions.It also briefly outlines the importance of VMA indicators in asphalt mixture design,as well as how to adjust the design in a timely manner if there are problems,and the excellent mix proportion can be designed finally.The results of comparing the use of highways and local national and provincial trunk roads have verified the important contribution of VMA indicators to long-life asphalt pavement,helping beginners quickly understand the design essence of Sup20 and maximize the excellent effects brought by this structure.

关 键 词：VMA Sup20 空隙率 沥青用量 矿料级配 

分 类 号：U414[交通运输工程—道路与铁道工程]