CAJ | 학술논문

废弃混凝土中砂石和水泥石颗粒回收用作再生骨料和再生水泥原料，是废弃混凝土有效资源化的基础。为了达到天然砂石骨料的性能，再生骨料需要经过颗粒整形、裂缝填充和去除黏附的水泥浆等物理化学强化处理。为了达到水泥原料的活性要求，废弃混凝土粉需要经加热和激发剂等活性激发。采用经强化和激发后的再生骨料和再生水泥可以拌制绿化混凝土、墙体砌块等混凝土再生品。综述了废弃混凝土在国内外建筑行业内的有效资源化途径，分析了资源化回用途径中关于再生骨料强化和再生水泥技术等存在的关键问题以及资源化研究的发展趋势。
폐기혼응토중사석화수니석과립회수용작재생골료화재생수니원료，시폐기혼응토유효자원화적기출。위료체도천연사석골료적성능，재생골료수요경과과립정형、렬봉전충화거제점부적수니장등물이화학강화처리。위료체도수니원료적활성요구，폐기혼응토분수요경가열화격발제등활성격발。채용경강화화격발후적재생골료화재생수니가이반제녹화혼응토、장체체괴등혼응토재생품。종술료폐기혼응토재국내외건축행업내적유효자원화도경，분석료자원화회용도경중관우재생골료강화화재생수니기술등존재적관건문제이급자원화연구적발전추세。
It is the basis of effective recycling to recycle the sand and cement particles from the waste concrete as the raw materials of the recycled aggregates and cement. In order to achieve the performance of natural sand and gravel aggregate,recycled aggregate particles required plastic,crack filling and remove adhesion of cement slurry and other physical and chemical intensive processes. The waste concrete powder needs to be activated by heating and exciting agent so that it can achieve the activity of cement raw material requirements. After reinforcement and stimulation, the recycled aggregates and recycled concrete can be used to produce concrete mixing greening, wall block and any other renewable products of concrete. Some effective ways to recycle waste concrete as materials in the construction industry and key problems and research trends of the resource recycling ways on strengthening the recycled aggregates and motivating the recycled cement are reviewed.