MONITORING EARLY-AGE BEHAVIOR OF CONCRETE RETAINING WALL BY FBG SENSORS IN YONGIN CONSTRUCTION SITE

摘要：

Concrete is the construction material used widely in civil engineering field. Thecracks of concrete are mainly caused by the uneven shrink in the early age especiallyhardening period. Hence,it is important to know concrete shrinkage and temperature varyingduring its early age. Firstly,the basic monitoring principle and merits of FBG sensor areintroduced in this paper. Then FBG temperature sensor and swain sensor has been used tomonitoring shrinkage and temperature of concrete retaining wall in construction site in itscasting early age. The test results indicate that this monitoring method is a practical methodfor monitoring concrete at very early age. However,thermal shift of FBG strain senor shouldbe eliminated. The monitoring technique used in this research could be extended to monitorshrinkage and temperature for mass concrete structure.

关键词： early age shrinkage FBG sensor temperature compensation retaining wall

作者: Il-Young, Jang Ying-Wei, Yun Feng-Li, Fan

作者单位: Civil Engineering Department,Kumoh National Institute of Technology,Korea Civil Engineering Department,Kumoh National Institute of Technology,Korea,Civil Engineering Departme

会议类型: 国际会议

会议名称: The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 436-441

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）