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http://dx.doi.org/10.14481/jkges.2014.15.3.33

Mechanical and Germination Characteristics of Stabilized Dredged Soil  

Lee, Miji (Department of Ocean Engineering, Pukyong National University)
Mun, Kyoungju (CMD Group-Technical R&D Center)
Yoon, Gillim (Korea Institute of Ocean Science & Technology)
Eum, Hyunmi (CMD Group-Technical R&D Center)
Kim, Yuntae (Department of Ocean Engineering, Pukyong National University)
Publication Information
Journal of the Korean GEO-environmental Society / v.15, no.3, 2014 , pp. 33-40 More about this Journal
Abstract
In this paper, mechanical and germination characteristics of stabilized dredged soils were investigated to recycle dredged soil in eco-friendly manner such as waterfront construction. Non sintering binder (NSB), which was developed by using interchemical reactions between slag, high-calcium fly ash, alkali activator on the dredged marine clay, was added to dredged soil. Ordinary portland cement was also used for the comparison of two binders. Experimental tests such as flow test and unconfined compressive test were carried out to evaluate characteristics of stabilized dredged soil. Leaching test, pH measure, vegetation germination test were also conducted to consider environmental applicability. The unconfined compressive tests shows that unconfined compressive strength (UCS) also increases with the increase of curing time and mixed ratio. UCS of NSB mixtures were higher than those of OPC mixtures. Germination tests showed that germination and sprouting date are better in NSB mixture than OPC mixture. It can be explained that germination decreased as pH and 7-day strength increased.
Keywords
Dredged soil; Non sintering binder; Germination; pH; Recycling;
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Times Cited By KSCI : 9  (Citation Analysis)
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