CAJ | 학술논문

研究了混凝土暴露在重金属环境中的污染特征，采用Zn、Cu、Pb、Cr、Cd单一溶液及混合溶液浸泡C20混凝土试块，分析了重金属在混凝土剖面的分布规律。结果表明，重金属主要分布于混凝土表层1 cm内，>1cm深度混凝土中重金属含量接近背景含量，建议在受重金属污染的混凝土构筑物拆除无害化处理处置中，可对其进行表层剥离。
연구료혼응토폭로재중금속배경중적오염특정，채용Zn、Cu、Pb、Cr、Cd단일용액급혼합용액침포C20혼응토시괴，분석료중금속재혼응토부면적분포규률。결과표명，중금속주요분포우혼응토표층1 cm내，>1cm심도혼응토중중금속함량접근배경함량，건의재수중금속오염적혼응토구축물탁제무해화처리처치중，가대기진행표층박리。
Aimed at providing basic data in management of heavy metal polluted construction and demolition waste (C&DW), this paper establishes the exposure of concrete to heavy metal. Immersion of C20 concretes in Zn, Cu, Pb, Cr, Cd solution and their mixed solution was conducted in research, and analyzing the heavy metal distribution in different depths of concrete was followed. The results showed that heavy metals were concentrated at concrete surface depth of less than 1cm, heavy metal concentrations in depth beyond 1cm were close to the background value. Distinguished approaches can be executed to separate the surface part and dispose safely in heavy metal polluted C&DW treatment.