TY - GEN
T1 - Fluorescence-Based Fiber Optic Sulphate Sensor for Long Term Sulphate Ion Monitoring in Concrete Structures
AU - Lin, Zhen
AU - Ni, Yiqing
AU - Sun, Tong
N1 - Publisher Copyright:
© 2023 by DEStech Publi cations, Inc. All rights reserved
PY - 2023
Y1 - 2023
N2 - Concrete has been one of the most popular construction materials around the world. However, sulphate ion will cause of concrete degradation and lead to the decrease of service life of concrete structures. The formation of ettringite and other reaction products can lead to the decrease of service life of concrete structures, thus, a continuous monitoring of sulphate ions is needed as a reference for the maintenance work of concrete structures. This paper presents the design and development of a fluorescence-based fiber optic sulphate sensor for this purpose. The sensor's design capitalizes on the changes in fluorescent intensity of morin-metal ion complexes induced by sulphate concentration changes. By using cellulose acetate, the complex is transformed from a solution to a thin film, serving as the sensing element in the sensor probe. The sensor provides a response over a sulphate molarity range of 0 mol/l to 0.010 mol/l. And after being embedded inside the cement paste, the sensor still responds to sulphate. These features make this fluorescence-based fiber optic sulphate sensor potentially suited for in field and long-term monitoring of sulphate ions in the concrete structures, thereby enhancing structural health monitoring within the civil engineering sector.
AB - Concrete has been one of the most popular construction materials around the world. However, sulphate ion will cause of concrete degradation and lead to the decrease of service life of concrete structures. The formation of ettringite and other reaction products can lead to the decrease of service life of concrete structures, thus, a continuous monitoring of sulphate ions is needed as a reference for the maintenance work of concrete structures. This paper presents the design and development of a fluorescence-based fiber optic sulphate sensor for this purpose. The sensor's design capitalizes on the changes in fluorescent intensity of morin-metal ion complexes induced by sulphate concentration changes. By using cellulose acetate, the complex is transformed from a solution to a thin film, serving as the sensing element in the sensor probe. The sensor provides a response over a sulphate molarity range of 0 mol/l to 0.010 mol/l. And after being embedded inside the cement paste, the sensor still responds to sulphate. These features make this fluorescence-based fiber optic sulphate sensor potentially suited for in field and long-term monitoring of sulphate ions in the concrete structures, thereby enhancing structural health monitoring within the civil engineering sector.
UR - http://www.scopus.com/inward/record.url?scp=85182264763&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:85182264763
T3 - Structural Health Monitoring 2023: Designing SHM for Sustainability, Maintainability, and Reliability - Proceedings of the 14th International Workshop on Structural Health Monitoring
SP - 1101
EP - 1108
BT - Structural Health Monitoring 2023
A2 - Farhangdoust, Saman
A2 - Guemes, Alfredo
A2 - Chang, Fu-Kuo
PB - DEStech Publications
T2 - 14th International Workshop on Structural Health Monitoring: Designing SHM for Sustainability, Maintainability, and Reliability, IWSHM 2023
Y2 - 12 September 2023 through 14 September 2023
ER -