断级配水泥稳定碎石基层设计  

Design of Gap Gradation Cement Stabilized Gravel base

作　　者：戴天乐 李闯民[1] Dai Tianle;Li Chuangmin(College of Transportation Engineering,Changsha University of Technology,Changsha,Hunan 410114)

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410114

出　　处：《江西建材》2023年第4期9-12,共4页Jiangxi Building Materials

基　　金：江西省交通运输厅科技项目《特重蠕行荷载路段高抗车辙柔性沥青路面成套技术研究》(项目编号:2021H0019)。

摘　　要：文中分析了形成干涉的级配粒径范围,并以最小振实矿料间隙率VCA和最大CBR值为优化指标,获得了骨架结构粗集料级配组成。根据胶砂填充设计思想对细集料级配及水泥胶凝材料组成进行体积法设计,试验结果表明,与普通水泥稳定级配碎石基层相比,设计的断级配水泥稳定碎石基层抗压强度和弯拉强度均有提升。In this paper,the size range of gradation that causes interference is analyzed,and the gradation composition of coarse aggregate with skeleton structure is obtained by taking the minimum compacted mineral gap ratio VCA and the maximum CBR value as optimization indexes.According to the design idea of mortar flling,the fine aggregate gradation and cement cementitious material composition are designed by volume method.The test results show that the compressive strength and flexural strength of the designed broken graded cement stabilized macadam base are improved compared with the ordinary cement stabilized macadam base.

关 键 词：断级配水泥稳定碎石基层 振实密度试验 体积法设计 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]