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J. Ocean Eng. Technol. 2003;17(4):16-22.    

An Experimental Study on Recycled Aggregate Concrete for Artificial Fishing Reefs
인공어초 개발을 위한 재생골재 콘크리트의 실험적 연구
홍종현,김문훈,우광성
탐라대학교 토목환경공학과,탐라대학교 토목환경공학과,영남대학교 토목공학과
© 2003 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Precast Artificial fishing Reefs, Mix Design Model, Recycled Aggregate Concrete, Polypropylene Fiber
핵심용어: 인공어초, 배합설계모델, 재생골재 콘크리트, 폴리프로필렌 섬유
Abstract
The mechanical characteristics of newly recycled aggregate concrete on the basis of the proposed mix design model have been studied to develop the precast artificial fishing reefs. In the first task, the experimental test for the recycled aggregates taken from Jeju Island has been carried out to verify the material properties in terms of specific gravity, percentage of solids, absorption and abrasion of coarse aggregates. In the second task, the experimental parameters of newly recycled aggregate concrete are investigated to meet with the requirements of guidelines with respect to slump, unit weight, pH, ultrasonic velocity, void ratio, and compressive strength which are made of sea-shore sand ad slag cement. The natural aggregate and polypropylene fiber are added to newly recycled aggregate concrete to improve the compressive strength and quality. The optimal mix proportions for compressive strength are W/C=30


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