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http://dx.doi.org/10.6111/JKCGCT.2015.25.5.199

Study on the prevention methods of radial cracks generated in artificial lightweight aggregate  

Kang, Jimin (Department of Advanced Materials Engineering, Kyonggi University)
Kim, Kangduk (Department of Advanced Materials Engineering, Kyonggi University)
Kang, Seunggu (Department of Advanced Materials Engineering, Kyonggi University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.25, no.5, 2015 , pp. 199-204 More about this Journal
Abstract
In this study, prevention methods of radial cracks generated inside of artificial lightweight aggregate made of reject ash and dredged soil were investigated. The reject ash and dredged soil had mixed with weight ratio of 7 : 3 and formed to spheric shape of 5~20 mm diameter, then, the aggregates were manufactured using flash sintering method at $1200^{\circ}C$ for 10 min. The formation of radial cracks in the aggregates were suppressed as the size of specimen decreased. Also, the addition of silica to aggregates had prevented generation of the radial cracks. As the size and the amount of silica powder added increased, the development of radial cracks was constrained. Therefore the artificial lightweight aggregate manufactured in this study expected to be applicable to many fields such as construction and environmental usages. Also it is expected to contribute greatly to increase the recycling rate of reject ash and dredged soil.
Keywords
Recycle; Reject ash; Dredged soil; Artificial lightweight aggregate; Radial crack; Open pore;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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