EFFECTS OF GRANULATED FLY ASH TO RECYCLE SEDGMENT IN AREA DEVASTATED BY TSUNAMI

Abstract

 Coastal area in Tohoku district was devastated by Tsunami at the East Japan Earthquake Disaster, and resulted that large volume of sediments of Tsunami were still accumulated. Now, public work, sediments removed and construction of soil structures as the dike for Tsunami, was in rehabilitation process. If large volume of sediments could be used for material of soil structures, it will contribute to the rehabilitation of the great earthquake disaster.
 In this study, granulated fly ash was mixed with soils as representative samples of devastated area, and laboratory test which was cone penetration test, odor test and germ culture test was tested. Granulated fly ash could be improved strength and could be restrained bad odor and culturing bacteria. By the field test with blending machine, those improvement effects were evaluated.