Evaluation of Durability on Water-Swelling Materials as Seepage Control Works in Waste Landfill Sites
Shinya INAZUMI, Hideo KAWABATA, Hiroyasu OHTSU and Takayuki ISODA
Abstract:This paper estimates the durability of water-swelling materials that is an important element in water cutoff performance of vertical cutoff walls constructed in coastal waste landfill sites. We carry out accelerated deterioration tests on the water-swelling materials. Furthermore, we predict the durability of water-swelling materials based on Arrhenius law.When Arrhenius law is applied to the result of accelerated deterioration test, the life of water-swelling materials will be estimated about 27 years. This suits the previous results in which decreasing in strength of water-swelling materials will not advance after progress from their curing start for one year. Therefore, it is thought that water-swelling materials are utilizable enough as water cutoff materials of vertical cutoff walls constructed in waste landfill sites for tens of years. Key Words:Accelerated deterioration test, Arrhenius law, Durability, Waste landfill, Water-swelling material