A study on the application of CB-filled cement-based composite as a strain sensor for concrete structures

Huigang Xiao; Hui Li

doi:10.1117/12.660787

11 April 2006 A study on the application of CB-filled cement-based composite as a strain sensor for concrete structures

Huigang Xiao, Hui Li

Proceedings Volume 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems; 61742T (2006) https://doi.org/10.1117/12.660787
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

Cement-based composites filled with carbon black of 120nm size were prepared, the composites contained 15% amount of CB was in the percolation threshold, and it showed good strain sensing ability, the resistivity of composites changed linearly with applied strain, suggesting that this kind of composites was a promising candidate for strain sensor used in concrete structures. Water ratio has obviously influences on the initial resistivity of the composites. Epoxy encapsulated was found a practicable way to insulate the composites from water, and make the resistance measurement practicable. Strain senser was maken with the composite contained 15% amount of CB, and applied in concrete column for strain monitoring, the results showed that the strain of the concrete column could be monitored by this kind of sensor.

Citation Download Citation

Huigang Xiao and Hui Li "A study on the application of CB-filled cement-based composite as a strain sensor for concrete structures", Proc. SPIE 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, 61742T (11 April 2006); https://doi.org/10.1117/12.660787

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