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남정만,김군학 濟州大學校 海洋硏究所 2004 해양과환경연구소 연구논문집 Vol.28 No.1
Recently, the efficient handling of recycled concrete becomes a problem, as re-development of city centers and apartments are .being activated in Korea. The effort to utilize the concrete aggregate as supplementary base course of road, back filling and refilling materials has been launched since the early 1980s, and the utilization method has been constantly studied and reviewed to commercialize it in various countries including the United States and European countries. The concrete waste matters have the attributes that they need a vast area to reclaim, and their biological degeneration is not conducted with time passage. 70∼80 thus, the concrete waste matter's potential utilization is very high. According to the data studied so far, the CBR value of recycled aggregate was 60.5%, the maximum dry density was 1.98 g/㎤ at 11.5% in optimal function ratio, abrasion was 21.8% and absorption rate was 5.65%. As a result of analyses on the domestic laws and on the quality standards through gathering waste concrete from construction sites within Jeju Island, the recycled waste concrete aggregate may e judgingly used as the material for back filling, refilling, road bed filled ground and supplementary base course of road materials.
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