Application of the cement treated clay with added tire chips to the sealing materials of coastal waste disposal site

This paper shows the one result of the study on effective recycling method of used tire and dredged clay for civil engineering material or geo-material. The authors conducted in unconfined compression test and tri-axial compression test of the cement treated clay with added tire chips. Then, we found that the cement treated clay was able to have a large toughness capacity by adding tire chips in the volume of about 10 to 20%. Essentially, very soft clay is able to have a strength and low permeability by adding cement, but its deformation property is brittle more than natural clay. Then, if it would be deformed, it would be cracked, and its permeability would be changed to high. But, the authors found that it was possible to change its deformation property, tough from brittle by adding tire chips into this, and consequently it is possible to keep its low permeability against increasing deformation. Then, we propose that cement treated clay with adding tire chips apply to the sealing material of coastal waste disposal site.