日喀则地区水泥稳定碎石(低品质卵石)基层配合比设计  

Cement stabilized macadam base (inferior quality pebble) grading design in Shigatse

作　　者：赵海生 胡佳波 鹿俊峰 邢志军 邵华 ZHAO Hai-sheng;HU Jia-bo;LU jun-feng;XING Zhi-jun;SHAO Hua(Key Laboratory of Expressway Maintenance Technology of Minisityof Transport (Jinan),Shandong Jinan 250031 China;Shigatse Transport Agency,Tibet Shigatse 857000 China)

机构地区：[1]高速公路养护技术交通行业重点实验室(济南),山东济南250031 [2]日喀则市交通运输局,西藏日喀则857000

出　　处：《山东交通科技》2019年第2期86-88,共3页

摘　　要：日喀则农村公路EPC建设项目中,缺少优质石料,将线路沿线河道或者山区冲积扇内卵石进行简易破碎和筛分,破碎后的卵石满足规范相关指标要求,按照C-A-1级配范围,确定级配并进行最大干密度击实试验,得到最佳含水率为6.5%,初定水泥剂量5%,7d无侧限抗压强度代表值3.63MPa,满足规范和设计要求。High quality macadam is in short supply during the rural road construction in he EPC construction of Shigatse rural road,pebbles obtained from rivers along designed rural road were crushed and sieved,the parameters of cursed pebbles were meet the requirements of specification,the gradation,grading design were made according to the gradation scope of C-B-2 in specification,the maximum dry density test were carried out and the optimum water content was 6.5%;the primary cement content was 5%,the representative value of 7 days no lateral limit compressive strength was 3.63 MPa which meet the requirements of specification and design.

关 键 词：水泥稳定碎石 卵石 试验段 目标配合比设计 

分 类 号：U416.1[交通运输工程—道路与铁道工程]