摘要
为了深入了解CRE涂层自身的延性以及与混凝土之间的黏结能力,采用拉伸试验以及拔出试验对CRE涂层钢筋进行试验分析。结果表明:CRE涂层的平均协同应变值为2017με,基本与钢筋屈服拉应变保持一致,可以与钢筋协同工作。CRE涂层对光圆钢筋与混凝土之间的黏结性能可以提升3倍以上,对螺纹钢筋可以提升1.1倍以上。可以有效降低钢筋锚固长度,节省原料降低成本。
In order to understand the ductility of CRE coating itself and bond strength with concrete,tensile test and pull-out test were used to test CRE coated steel bars.Results show that,the average strain value of CRE coating is 2017 με,which is basically consistent with the yield tensile strain of steel bar,so CRE coating can work in conjunction with steel bars.Bond strength of plain bar and ribbed bar was increased by more than 3 times and 1.1times because of CRE coating, respectively.It can effectively reduce the anchorage length,and save the raw materials and cost.
作者
徐震
邓嘉华
张洛栋
黄之昊
闫东明
XU Zhen;DENG Jiahua;ZHANG Luodong;HUANG Zhihao;YAN Dongming(Shanxi Sanjian Construction Group Co.,Ltd.,Changzhi 046011,China;College of civil engineering and architecture,Zhejiang University,Hangzhou 310058,China;State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China)
出处
《结构工程师》
北大核心
2019年第3期176-180,共5页
Structural Engineers
基金
国家自然科学基金项目(51778570、51879230)
水文资源与利工程科学国家重点实验室开放研究基金(2014490211)
关键词
活性瓷釉涂层
延性
黏结性能
chemically reactive enamel coating
ductility
bond strength
