|
Title |
Effect of Replacing Fine Aggregate by Cathode-Ray Tube(CRT) Waste Glass on Gamma-ray Shielding Properties of Cement Mortar Specimen
|
|
Authors |
최윤석(Yoon-Suk Choi) ; 이선민(Seon-Min Lee) ; 김태상(Tae-Sang Kim) ; 김일순(Il-Sun Kim) ; 양은익(Eun-Ik Yang) |
|
DOI |
https://doi.org/10.11112/jksmi.2019.23.7.172 |
|
Keywords |
브라운관 폐유리; 잔골재; 감마선 차폐; 선형감쇠계수; 반가층 CRT waste glass; Fine aggregate; Gamma-ray shielding; Linear attenuation coefficient; Half-value layer |
|
Abstract |
In this study, the microstructure and gamma-ray shielding efficiency of CRT glass mortar specimen were evaluated with replacement ratio and material properties. The results show that as the replacement ratio of CRT waste glass increases, the volume of pores with diameters below 50 nm and above 400 nm is increased. Also, the half-value layer of CRT glass mortar decreased with the increasing of linear attenuation coefficient. In addition, compressive and flexural strength were reduced when CRT waste glass was replaced as the fine aggregate, but the mechanical performance of CRT mortar specimen could be obtained by substitution of the mineral admixture.
|