The Basic Study on the Site Application of the Underwater-Hardening Epoxy Mortar Using RCSS

급냉 제강 슬래그를 이용한 에폭시 수지 모르타르 현장 적용에 관한 기초적 연구

The repair and reinforcement materials of the concrete structure in underwater is use to epoxy mortar for underwater-harding. Because it ensures the separation of material and a fluidity in construction, it is important to epoxy mortar This study dealt with the influence of the using of rapidly-chilled steel slag on flow, nozzle passing time, viscosity, and strength of mortar by experimental design. As results of study, this paper proved that the more the using rate of rapidly chilled steel slag increased, the more this affected the enhancement of flow, the decrease of O-lot, and the development of compressive strength, flexural strength. Also, considering the fluidity, nozzle passing time and strength of mortar, it is desirable to use RCSS300 of rapidly chilled slag.