GA-10浇注式沥青混合料配合比及施工工艺研究  

Study on Mix Proportion and Construction Technology of GA-10 Pouring Asphalt Mixture

作　　者：孙凤喜 SUN Fengxi

机构地区：[1]中铁十五局集团第四工程有限公司,河南新郑451100

出　　处：《重庆建筑》2025年第3期57-61,共5页Chongqing Architecture

摘　　要：浇注式沥青混合料(GA)属于悬浮密实结构,具有沥青含量高、矿粉含量高、拌合温度高、空隙率低的特点。浇注式沥青混合料浇注成型后具有不透水、整体性强、抗疲劳性强、随从变形能力好及耐久性强等特点,能有效延长路面的使用寿命,降低全寿命周期养护成本,社会经济效益显著。依据施工设计的具体要求,按照规范要求和施工经验,重点控制贯入度、贯入度增量、测试温度流动性及低温弯曲破坏时最大弯拉应变检测指标,总结了设计GA-10浇注式沥青混合料配合比的方法和步骤,探讨了施工工艺技术和施工中质量控制的方法。Cast asphalt mixture originated in Germany and has been widely used in other European countries and some Asian countries In China,the technical field started late in 1995 up to now,pouring asphalt mixture has been successfully applied in steel deck pavement engineering of many bridges,especially suitable for large and medium-sized bridges,especially long-span cable-stayed bridges,suspension bridges and arch bridges pouring asphalt concrete(GA)belongs to suspended dense structure and has the characteristics of"three highs and one low"That is,high asphalt content,high mineral powder content,high mixing temperature and low porosity after casting,it has the characteristics of impermeability,strong integrity,strong fatigue resistance,good follow-up deformation ability and strong durability,etc.It can effectively prolong the service life of pavement,and the wholelife cycle maintenance cost is remarkable in social and economic benefits combined with the concrete project GA-10 pouring asphalt mixture,the mix ratio selection and construction technology are explained in detail in this paper.

关 键 词：浇注式沥青混合料 配合比 施工工艺 

分 类 号：TU74[建筑科学—建筑技术科学] U414[交通运输工程—道路与铁道工程]