연산호 육성용 어초 개발을 위한 송이 다공성 콘크리트의 적용성에 관한 실험적 연구

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 19; no. 4; pp. 28 - 34
• Main Authors: 홍종현(CHONG-HYUN HONG), 김문훈(MOON-HOON KIM), 김석철(SEOK-CHEL KIM), 박성배(SUNG-BAE PARK), 류성필(SEONG-PIL Ryu)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2005
• Subjects: 해양공학; Jeju Scoria 제주송이; Porous Concrete 다공성콘크리트; Artificial Reef 인공어초; Soft Coral 연산호; Mix Design Model 배합설계모델
• ISSN: 1225-0767; 2287-6715

In the study application of volcanic scoria concrete to artificial reefs is investigated. Volcanic scoria is a natural volcanic product that shows light weight, mil/i-porous, and far-infrared irradiation characteristics. The properties of volcanic scoria concrete using Jeju scoria aggregate are evaluated by conducting a comprehensive series of tests on strength and void ratio. It is concluded that the volcanic scoria concrete has the sufficient strength of 4MPa-13MPa and adequate void ratio of $12\%-35\%$ to be accepted as artificial reef concrete. The field experiments are performed through observation by scuba diver's at the Seogwipo coast. Porous specimen and plane concrete specimen are prepared for comparison purposes. Seasonal changes of soft coral on the two series of test specimens were have been observed from Apr. 9, 2004 to Mar. 18, 2005. The soft coral is well grown on the porous specimen however there are no significant changes on the conventional plain concrete specimen. Thus it is concluded that the volcanic scoria concrete is highly suitable as artificial reef concrete.