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Strength and Deformation Characteristics of Lightweight Foamed Soil Using In-situ Soil  

Yoon Gil-Lim (Coastal & Harbor Engrg. Lab, Korea Ocean Research & Development Institute)
You Seung-Kyong (Dept. of Civil Engrg., Myongji College)
Publication Information
Journal of the Korean Geotechnical Society / v.20, no.9, 2004 , pp. 125-131 More about this Journal
Abstract
A series of unconfined compression tests were carried out firstly to investigate mechanical behaviors of Lightweight Foamed Soil (LWFS) which is composed of dredged soils, cement and air foam. And secondly, to compare the difference of mechanical characteristic of LWFS with previous research conclusions (Yoon & Kim,2004) by using different dredged soils sampled at Joong-Ma in Gwangyang harbor area. Based on numberous laboratory experiments, it was found that deformation coefficient $(E_{50})$ of LWFS increases with increasing cement contents but decreases with increasing initial water contents of dredged soils. Appropriate regression formula (normalizing factor scheme) which considers relationship between LWFS composing elements, initial water contents of dredged soils, cement, air foam, and uniaxial compression strength or LWFS is proposed for practical applications. Finally, it was clear that, to apply LWFS method to practical projects, certain laboratory test would be necessary to take considerations of soil locality because mechanical charac-teristics of LWFS were surely dependent upon their sampled locations and properties.
Keywords
Dredged soils; In-situ soil; Lightweight foamed soil; Uniaxial compression test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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