압전센서를 이용한 콘크리트의 응결시간 추정

Estimation of setting times of concrete using piezoelectric sensor

In this study, the setting times of concrete was evaluated using the electro-mechanical (EMI) behavior of piezoelectric sensor embedded in the concrete. Penetration resistance test was also performed to compare with EMI sensing technique. As a result, the setting times of concrete can be measured more effectively than penetration resistance test through the EMI sensing technique using the piezoelectric sensor.