Phase change material (PCM) has been developed and applied in various fields as construction material. If the application of PCM as the semi-rigid pavement cement grout becomes available, it would be possible to control the occurrence of a micro crack due to the generation of hydration heat in the ultra rapid harding cement, and if the occurrence of a micro crack is reduced, it would be possible to improve the cohesion performance between asphalt matrix and grout as well as to compact the matrix of the pavement material, improving the durability. Therefore, the applicability review of PCM for the purpose of improving the semi-rigid pavement materials through the shrink reduction of ultra rapid harding cement used as the semi-rigid pavement cement grout was carried out in this study.

• 이병재((주)제이엔티아아엔씨 기술연구소 책임연구원, 공학박사) | Lee, Byung Jae
• 김윤용(충남대학교 토목공학과 교수, 공학박사) | Kim, Yun Yong 교신저자
• 김성수((주)가람이엔씨 대표이사, 공학박사) | Kim, Seung Su