Development of Deterioration Model of Potable Water Distribution System Considering the Material Propertie

Water and wastewater facilities of Korea also have been continuously increased with the rapid development of urbanization. Especially in the 80's and 90's, many water pipes had been installed and the useful life of them goes beyond more than 40 years old. These facilities will cause the simultaneous increase of the replacement time and will result of a large of national financial burden on government and society. For this reason, to build the appropriate and reasonable budget investment strategy, the determination of introduction of asset management system about water treatment and wastewater facilities is absolutely needed. Thus, in this study, a certain pilot area for analysis of safety/ technical diagnosis data was selected , methodology of developing aging model for water pipe was studied, and environmental characteristic, and aging tendency was applied for developing of deter model. Through this process, the correlation between the two diagnostics, environmental characteristics was compared and the prediction deterioration model according to material properties was developed. It will be based on the long-term national plan for infrastructure asset management and it will be utilized a very important part of investment decision making for infrastructure.