人工地盤材料の長期耐久性とその維持管理(<特集>人工地盤材料の維持管理)

概要

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Characteristics of deterioration of the man-made geo-material should be known when discussing the long term durability of the material. But they are usually not known in the new materials. From the overview of the deterioration of cement treated clay which has been studied a lot, long term durability of the material is strongly affected by the environment. When the cement treated clay is set under the ground where small flow of air or water is observed and no solar insolation and fresh air is observed, rate of the deterioration of the material is very slow. Similar tendency can be observed other geo-materials. Usually it is very difficult to present the long term durability of new material. Long term durability of the material is often estimated from the analogy of that of similar geo-materials. From these situations, two ways of preparation are required to utilize new materials, such as deterioration monitoring of the material and making ready for the counter measure against troubles.
2012-11-01