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Proceedings Paper

Estimation of the strength development of ultra high performance concrete using a single embedded sensor
Author(s): Changgil Lee; Sukhoon Pyo; John E. Bolander; Seunghee Park
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Paper Abstract

In this study, the hardening process of ultra high performance concrete (UHPC) was monitored non-destructively using a single embedded sensor system and the characteristics of guided waves, especially the Lamb wave. Lamb wave propagation depends on the material properties of the medium and boundary conditions. Since the boundary conditions of the embedded sensor system continuously change during the hardening process of concrete materials, the measured characteristics of the propagating waves also vary. To understand the variations in wave propagation, the Lamb modes were decomposed using the polarization characteristics of piezoelectric sensors, which were used to measure wave responses. Additionally, a traditional penetration resistance method was adopted to estimate the time for phase transition of UHPC. The decomposed Lamb modes were compared to measurements of penetration resistance. The strength development of UHPC, with and without short-fiber reinforcement, was estimated using the variation of patterns of the decomposed Lamb modes after the phase transition. Based on the proposed methodology, which measures the propagation and variation of the Lamb waves, it is possible to estimate the time of phase transition and the strength development of UHPC.

Paper Details

Date Published: 12 April 2017
PDF: 6 pages
Proc. SPIE 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 101682Q (12 April 2017); doi: 10.1117/12.2260056
Show Author Affiliations
Changgil Lee, Sungkyunkwan Univ. (Korea, Republic of)
Sukhoon Pyo, Korea Railroad Research Institute (Korea, Republic of)
John E. Bolander, Univ. of California, Davis (United States)
Seunghee Park, Sungkyunkwan Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 10168:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017
Jerome P. Lynch, Editor(s)

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