The evolution of the electro-mechanical impedance (EMI) of piezoelectricity (PZT) sensor was investigated to determine the setting times of fiber reinforced cementitious materials in this study. Penetration resistance test was also conducted to validate the EMI sensing technique. As a result, the setting times of fiber reinforced cementitious materials can be effectively monitored through the EMI sensing technique using an embedded PZT sensor.

• 이준철(경북대학교 대경권국토교통기술지역거점센터, 공학박사) | Lee, Jun Cheol 교신저자
• 김화중(경북대학교 건설에너지환경공학부 교수, 공학박사) | Kim, Wha Jung
• 권용민(안동대학교 토목공학과 교수, 공학박사) | Kwon, Yong Min
• 배수호(경북대학교 건설에너지환경공학부, 석사과정) | Bae, Su ho