抄録
Environmental safety of the landfill sites is now highly requested. In this viewpoint, a new typelandfill sites called as ‘steel plate liner system’ is now developed. Steel plate is used as the liner facility insteadof the conventional rubber sheets. However, the corrosion of the steel plate can take place in the system.Especially, the corrosion of the inside steel plate is feared because waste or leachate is touching to the inside.Corrosion margin should be adopted as the protection method. In this method, the corrosion rate of steel plateuntil reclaimed waste reaches stable is estimated and the board thickness is determined in advance. However, no data has been reported about the corrosion rate of steel plate in landfill sites. In this study, the corrosionrate of a non-painted steel plate was measured and the performance of various types of painting for protectionwas checked by landfill site exposure tests. The required board thickness was determined by using themaximum value of annual corrosion rate of the non-painted piece in view of safety.
