骨架密实型GAC-25沥青混合料施工关键技术  

Key Technology for the Construction of Skeleton Compact Type GAC-25 Asphalt Mixture

作　　者：李宏日 LI Hongri(Guangxi Road Construction Engineering Group Co.,Ltd.,Nanning,Guangxi 530001,China)

机构地区：[1]广西路建工程集团有限公司,广西南宁530001

出　　处：《黑龙江交通科技》2024年第5期14-18,共5页Communications Science and Technology Heilongjiang

摘　　要：GAC-25沥青混合料因其良好的骨架效果,具有优良的抗车辙、抗渗、抗疲劳性能,在我国高温多雨的华南地区大范围应用于高速公路下面层的铺筑,但它的骨架密实型结构决定了其性能及使用寿命大幅受到施工工艺的影响。为提高华南地区GAC-25沥青混合料的施工质量,以广东省紫惠高速公路项目为依托,对下面层的原材料控制、配合比设计、施工关键环节开展了研究。GAC-25 asphalt mixture because of its good skeleton effect,with excellent rutting resistance,seepage resistance,anti-fatigue performance,in the lower layer of the highway,but its skeleton compact structure determines its performance and service life is greatly affected by the construction technology.In order to improve the construction quality of GAC-25 asphalt mixture in South China,the raw material control,mix ratio design and construction key links of the following layer were studied based on the Zihui Expressway project in Guangdong Province.

关 键 词：GAC-25 沥青混合料 下面层 施工技术 

分 类 号：U416.217[交通运输工程—道路与铁道工程]