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Characteristics of sintered fly ash-clay body prepared by slip processing and its applicability for foundation soils  

Kang, Seung-Gu (Department of Materials Engineering, Kyonggi University)
Lee, Yeong-Saeng (Department of Civil Engineering, Kyonggi University)
Abstract
The civil engineering properties for the coal fly ash produced from a power plant mixed with sintered powders made from the fly ash-clay slip system were measured and its applicability for the foundation soils was investigated. The F-slip whose dispersion state is 'not good' and C-slip which is re-flocculated by adding a flocculant to a well-dispersed slip were fabricated and then sintered. The sintered body made from C-slip had more uniform microstructure than that of F-slip, therefore, the bulk density and compressive strength were improved. The civil engineering properties such as compression index, compressive strength, permeability coefficient of fly ash were improved by mixing $0.84{\sim}2\;mm$ powders obtained by crushing a sintered body made from C-slip. Therefore, the applicability of mixed powders composing of fly ash and sintered body made from C-slip was confirmed to foundation soils due to its improved civil engineering properties.
Keywords
Fly ash; Slip; Direct coagulated casting; Civil engineering; Foundation soil;
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Times Cited By KSCI : 1  (Citation Analysis)
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