Abstract

A large amount of dredged soils occur in the marine purification project but dredged fine-grained soils have been abandoned as a waste. The standards as filling materials, banking materials, revetment blocks and concrete blocks were surveyed. Through the geotechnical tests of marine dredged fine-grained soils and the alkali-activation reaction, the usability as banking materials, revetment blocks and concrete blocks were analyzed. Dredged sands could be used as banking materials, and dredged fine-grained soils could be used as filling materials. A mixture of dredged fine-grained soils and dredged sands could be used as banking materials. Materials produced by the alkali-activation reaction could be used as a revetment block and a concrete block.

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