Silting is a serious problems in most of the reservoirs in Taiwan. Dredging is frequently conducted to remove soils deposited in the reservoirs. On the other hand, back-fill materials are in serious shortage for engineering constructions. Thus, use of the dredged soils as a back-fill material has presented a great solution to the treatment of dredged soils. This study focuses on the use of dredged soils to construct road embankment. Soil samples were taken from Bai-Ho reservoir for laboratory tests. The soil was classified as CL based on the USCS classification system. Compressibility characteristics of compacted soil and soil-cement were investigated by conducting both static and repeated loading consolidation tests.Portland cement (type 1) of 0, 3, 6, 12, and 18% were mixed with the soil to prepare specimens of 1.91 cm in height and 6.35 cm in diameter.
