Recycling of Tsunami Sludge by Fiber-Cement-Stabilized Soil Method and Creation of Artificial Ground

Abstract

Tsunami sludge was improved by Fiber-cement-stabilized soil method which we developed to increase the recycling rate of construction sludge, and high functional ground materials were made. By using the modified soils, an construction to create the artificial ground was carried out. It was confirmed through the construction that creation of artificial ground was possible even if a large amount of wasted wood chips was included in Tsunami sludge. Furthermore, a fundamental study to use modified soils as cover soils for radiological contaminated soils was carried out. In this study, low permeability as one of the functions for which the cover soils are required. In result, necessary conditions to satisfy the target value for permeability were made clear.