Abstract
Cement-treated Dredged clays have been used as a construction materials, backfilling of quay wall, artificial barrier layer of waste disposal site and submerged embankment. However, strength mobilization has not been fully understood from immediately after mixing to long-term curing time. Hence, unconfined compression test and vane shear test were carried under different stages of curing time, i.e., ranging from 0.5 hours to 90 days. On the basis of results, it was found that the strength at 1 hour of curing can be estimated by initial water content and specific volume ratio by normalized liquid limit. In addition, strength mobilization can be divided two stages depending on curing time; first stage within 3 days and second stage after 3 days. The formulas to estimate strength of cementtreated marine clay were proposed based on strength at 1 hour of curing and ratio of strength inclement before and after 3 days, and combined with previously proposed formula related to volumetric solid content.
