Early-Age Autogenous Shrinkage of High-Performance Concrete Columns by Embedded Fiber Bragg-Grating Sensor

Abstract:

High-performance concrete (HPC) as a promising construction material has been widely used in infrastructures and high-rise buildings etc. However, its pretty high autogenous shrinkage (AS) especially in its early age becomes one of the key problems endangering long-time durability of HPC structures. This paper carried out the early age AS research of large scaled HPC column specimens by embedded Fiber Bragg-Grating (FBG) strain sensor. Temperature compensation for FBG strain sensor by thermocouple was also attempted in this paper, and the results were reasonable and acceptable comparing with the result compensated by FBG temperature sensor. Reinforcement influence, size effect and temperature effect on HPC AS were also analyzed respectively in this paper.

• Periodical: Key Engineering Materials (Volumes 419-420)
• Pages: 1-4
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.419-420.1
• Online since: October 2009
• Authors: Ying Wei Yun, Ii Young Jang, Seong Kyum Kim, Seung Min Park
• Keywords: Early Age Autogenous Shrinkage, Fiber Bragg-Grating Strain Sensor, High Performance Concrete Column, Temperature Compensation

References

[1] YUN Ying-wei and JANG Il-Young, Application of Fiber Bragg Grating Sensor to Monitor Early-Age Deformation of HPC, in: Proceedings of 8th International Symposium on Utilization of High-Strength and High-Performance Concrete, Vol. 2, p.757, Tokyo, Japan (2008).

DOI: 10.4028/www.scientific.net/kem.450.478

[2] Aïctin, PC, Autogenous shrinkage measurement, in: Autogenous Shrinkage of Concrete, edited by Tazawa, E., E & FN Spon, p.257 (1999).

DOI: 10.1201/9781482272123-36

[3] Neville A.M.: Properties of Concrete, (Longman, London 1995), p.16.