PURPOSES : The purpose of this study was to improve the performance of concrete pavements by decreasing measurement deviations using an Internet of Things (IoT)-based air content measurement device. METHODS : We calculated the properties of concrete which varied according to the air content. For a low measurement deviation, the concrete pavement performed according to the design standard. To confirm the difference in the performance of the concrete pavement for various air contents, we verified the change in the relative dynamic modulus according to the number of freeze–thaw cycles for each value of the air content. In addition, we analyzed the number of durability cracks according to the freeze–thaw cycles in the field. RESULTS : We confirmed that IoT-based measurement equipment improved the performance of pavements without changing their mixing designs or specifications. We confirmed that the performance of concrete pavements changed even with variations in air content within the range of quality standards. Using IoT-based air content management, we confirmed the reduction in concrete pavement durability cracks without changing the mixing design. CONCLUSIONS : We confirmed that IoT-based air-content management improved pavement performance. The feasibility of extending this concept to manage other concrete properties such as the chloride content should be acknowledged. Future research will require laboratory tests to understand the variation in concrete properties with varying air contents and to consider diverse load conditions.

1. 서론
2. 기존 장비와 IoT 기반 장비로 측정한 콘크리트공기량의 비교
3. 공기량과 동결융해 횟수에 따른 콘크리트의 상대동탄성계수
4. 동결융해 일수에 따른 콘크리트 포장의 내구성균열
5. 결론
감사의 글

• 이창원(인하대학교 공과대학 스마트시티공학전공 석사과정) | Lee Chang Won
• 연준석(정회원 · 인하대학교 공과대학 스마트시티공학전공 석사과정) | Yeon Joon Seok
• 정원경(정회원 · ㈜한국건설품질시험연구원 대표이사) | Jung Won Kyong
• 이대식(정회원 · 인하대학교 공과대학 토목공학과 박사과정) | Lee Dae Sik
• 정진훈(정회원 · 인하대학교 공과대학 사회인프라공학과 교수) | Jeong Jin Hoon 교신저자