摘要
养生是防止水泥稳定碎石基层收缩开裂和保证其使用性能的重要施工工序。为了对水泥稳定碎石养生提供选择依据,选用水泥稳定碎石基层的节水保湿养生膜、补水养生(麻袋)及密封养生(聚乙烯薄膜)三种养生方式开展室内试验研究和道路工程的验证。结果表明:麻袋养生需水量大、保温性能和抗水泥稳定碎石收缩性最差,聚乙烯薄膜养生次之,节水保湿养生膜最优。
Curing is a very important construction process to prevent cement stabilized macadam base from shrinking and cracking, and ensure its service performance. In order to provide the selection basis for cement stabilized macadam base curing, three curing methods, including water-saving damp-preservation membrane, water curing （gunny bag） and coating-sealing curing （polyethylene film）, were selected to carry out the indoor tests and verification by road engineering. The results show that gunny bag curing is characterized by large water demand, and worst thermal insulation and anti-shrinking performance, in respect of which polyethylene film curing is the second, second and water-saving damp-preservation curing membrane performs best.
出处
《路基工程》
2014年第3期37-40,共4页
Subgrade Engineering
基金
新疆交通运输厅重点基金项目:新疆高盐地区防盐腐蚀混凝土施工技术研究
关键词
道路工程
水泥稳定碎石
养生方式
收缩
抗裂性
road engineering
cement stabilized macadam
curing method,shrinkage,cracking resistance
