Abstract
Utilization of the soils recovered from the disaster debris is one of the geoenvironmental challenges related to the 2011 East Japan earthquake and tsunami. The disaster debris contained significant amount of soil fractions and these soils are expected to be separated from the disaster debris and utilized in re-construction works in the areas affected by the disaster. In this paper, generation and treatment of disaster debris are briefly summarized. Mechanical properties of recovered soil were discussed from the viewpoint of composition, compaction, and compressibility in order to utilize it in geotechnical applications. A lower amount of admixed combustible matter can lead a higher quality of recovered soils as a geo-material. Difficulty of characterizing the recovered soil and feasible strategies for utilization are also briefly discussed based on the experimental results.
