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| SHEAR STRENGTH PROPERTIES OF LIGHTWEIGHT BEAD-TREATED SOIL MADE FROM DREDGED SILT |
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Abstract Lightweight bead-treated soil made from dredged silt is a new type of lightweight geo-materials(LGM). The meso-cracks in lightweight bead-treated specimen are found to generate from the interface between expanded poly-styrene (EPS) beads and solidified soil particles .With the additive amounts of cement and beads of EPS，the Mohr-coulomb envelope curve of the lightweight bead-treated specimen has two types：folding line and straight line. Different from natural soils，the damage of cementation should be considered in the strength mechanics of lightweight bead-treated soil.
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Received: 01 February 2005
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