Abstract
In the Law for the Utilization of Recyclable Resources, the reasonable disposal, restraint of generation and decrease of cons-truction by-products are demanded. Recently, processing and disposal of construction surplus soils are common subjects of metro-polises, and the development of recycling technology of soil generated from various kinds of sites is very important.
The purpose of this study is utilization of the surplus soil that does not reach the material sta-ndard. In this paper, the authors report about the new soil improvement machine that mixes unreusable soils such as soft soils, gravelly soils, concrete lumps and so on. The machine is able to change the unreusable soils into embankment materials in the short term. That techno-logy has been developed with the aid of the Kinki Technology Office of the Ministry of Construction.
As a result, the surplus soils that are mixed with concrete lumps achieve the material standard of High Standard Levee. The utilization of the surplus soils is possible because the grain size distribution and the strength of the mixed soils has been improved. It has been made clear that the mixture performance of the new soil improvement machine is good.
