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http://dx.doi.org/10.4191/KCERS.2002.39.12.1138

Environmentally Adaptive Stabilization of the Hazardous Heavy Metal Waste by Cementious Materials(II)  

Won, Jong-Han (Department of Ceramic Engineering, Hanyang University)
Choi, Kwang-Hui (Department of Ceramic Engineering, Hanyang University)
Choi, Sang-Hul (Department of Ceramic Engineering, Hanyang University)
Lee, Hun-Ha (Environment Energy Research Division, Materials Utilization Research Team, RIST)
Sohn, Jin-Gun (Environment Energy Research Division, Materials Utilization Research Team, RIST)
Shim, Kwang-Bo (Department of Ceramic Engineering, Hanyang University)
Publication Information
Journal of the Korean Ceramic Society / v.39, no.12, 2002 , pp. 1138-1142 More about this Journal
Abstract
Slag cement and supersulfated slag cement were fabricated by mixing blast furnace slag and ordinary portland cement and adapted to solidify/stabilize heavy metal contained hazardous waste sludge. In case of slag cement, it showed continuous increase of their compressive strengths, which is attributed to the formation of the C-S-H, ettringite and monosulfate with STS sludge. However, BF and COREX sludge has a different shape and composition. therefore, adequate compressive strength could not be achieved with this slag cement. In case of the mixture of the each sludge like the STS-BF or the STS-COREX, the compressive strength over the standard level for disposing the wastes could be obtained with slag cement. The supersulfated slag cement that contain accelerators was very effective in solidifying the COREX sludge, which was difficult to solidify using different cement and obtained high compressive strength only for 3 days.
Keywords
Solidification and stabilization; Slag cement; Supersulfated slag cement; Sludge;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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