寒冷地区道路基层取芯时间的探讨  

INVESTIGATION ON CORING TIME OF ROAD BASE COURSE IN COLD REGION

作　　者：赵秀云 陈亮亮[2] 赵银[2] 

机构地区：[1]中铁十三局集团第四工程有限公司,哈尔滨150008 [2]哈尔滨工业大学交通科学与工程学院,哈尔滨150090

出　　处：《低温建筑技术》2011年第8期99-101,共3页Low Temperature Architecture Technology

摘　　要：分析了目前道路半刚性基层施工中采用7d取芯成功作为验收标准在寒冷地区应用可能带来不利因素。结合不同水泥剂量下水泥稳定级配碎石的温缩试验,说明了提高水泥剂量增大了半刚性基层温缩系数从而导致基层开裂,并就解决方法提出了几点建议。The disadvantages that using the 7-day coring method as the acceptance check in the construction of semi-rigid base course are analysed in this paper. The test on cement stabilized graded crushed stone with different cement dosages proved that increment in cement dosage can improve temperature shrinkage coefficient and the possiblity of the craking of semi-rigid materials. At last, several suggestions on solving the problem are proposed in the paper.

关 键 词：取芯时间 半刚性基层 温缩系数 养生 

分 类 号：TU412[建筑科学—岩土工程]