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Title |
Fundamental Properties and Radioactivity Shielding Characteristics of Mortar Specimen Utilizing CRT Waste Glass as Fine Aggregate
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Authors |
최윤석(Yoon-Suk Choi) ; 김일순(Il-Sun Kim) ; 최소영(So-Yeong Choi) ; 양은익(Eun-Ik Yang) |
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DOI |
https://doi.org/10.11112/jksmi.2019.23.1.163 |
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Keywords |
브라운관 폐유리 ; 방사선 차폐 ; 선형감쇠계수 ; 고밀도 잔골재 CRT waste glass ; Radioactivity shielding ; Linear attenuation coefficient ; High-density fine aggregate |
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Abstract |
In recent years, various types of industrial wastes are rapidly increasing with the development of high-tech industries. Specially, high-density waste glass of CRT TV containing heavy metals are buried or disposed of due to reprocessing costs and environmental pollution problems. Thus, more basic research is needed to recycle waste such as CRT waste glass such. In this study, the fundamental properties and radiation shielding performance of mortar specimens substituted CRT waste glass as a fine aggregate were analyzed and their application to shielding materials was evaluated. According to the results, the bulk density of mortar specimen replaced with CRT waste glass was increased and the compressive strength and flexural strength were decreased. Meanwhile, the CRT waste glass substitute specimen containing a large amount of lead component showed a higher shielding performance than the general mortar specimen. Especially, the linear attenuation coefficient of CRT waste glass in 122KeV·57Co of the low energy field was 2.5 times higher than that of normal specimen.
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