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http://dx.doi.org/10.4191/KCERS.2002.39.12.1133

Fabrication of the Cement for the Solidification of the Toxic Waste using Waste Concrete Powder  

Kim, In-Seob (Department of Ceramic Engineering, Hanyang University)
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, Jong-Gyu (Ceramic${\cdot}$Building Materials Department, KICET)
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. 1133-1137 More about this Journal
Abstract
The cement for solidification of the toxic waste was fabricated using a mixture of the waste concrete powder and blast furnace slag in the ratio of 1:1 and its hydrate morphology and compressive strength of the sample were evaluated in order to apply to the solidification of the COREX sludge. The X-ray diffraction analysis of the sample which prepared by the addition of 10% Portland cement and hemihydrate showed the presence of $Ca(OH)_2$, ettringite, gel-phase and C-S-H hydrate. Compressive strength of the sample exhibited enough high to use as a solidification cement. The strength of the sample was over 140 kgf/$m^2$ in 7 days in case of solidification of the COREX sludge and the sample possess sufficient morphology for the solidification and stabilization of the waste sludge.
Keywords
Solidification; Waste concrete; COREX sludge; Blast furnace slag; XRD;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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