In this study, the correlation with a proctor penetration resistance tester is analyzed for the purpose of judging the setting time of concrete by the convenient portability of the durometer which is a rubber hardness meter.The result of this study showed a high correlation between the value of the tilt of the durometer and the measured value of the proctor penetration resistance tester.

Abstract
 1. 서 론
 2. 실험계획 및 방법
 3. 실험결과 및 분석
 4. 결 론

• 이혁주(청주대학교 건축공학과) | Lee, Hyuk Ju 교신저자
• 이영준(청주대학교 건축공학과) | Lee, Young Jun
• 김태우(청주대학교 건축공학과) | Kim, Tae Woo
• 이재진(청주대학교 건축공학과) | Lee, Jae Jin
• 한민철(청주대학교 건축공학과) | Han, Min Cheol
• 한천구(청주대학교 건축공학과) | Han, Cheon Goo