高経年化技術評価の高度化 - コンクリート構造物の長期耐久性評価 -
Study of System Safety Evaluation on LTO of National Project- Long Term Durability Evaluation of Concrete Structures -
著者:
橘高 義典 Yoshinori KITSUTAKA 橘高 義典 Yoshinori KITSUTAKA
発刊日:
公開日:
ConcreteDurabilityIrradiationNeutralizationPenetration of salinityStructureThermal effect
概要
In this paper, method on the aging evaluation in nuclear power plant concrete structures was investigated. Problems on the durability evaluation of reinforced concrete structures were pointed out and an evaluation framew ork was considered. In view of the importance of evaluating the degree of deterioration of reinforced concrete structures, relationships should be formulated among the number of years elapsed, 1, the amount of action of a deteriorative factor, F, the degree of material deterioration, D, and the performance of the structure, P. Evaluation by PDFt diagrams combining these relationships may be effective. A detailed procedure of durability evaluation for a reinforced concrete structure using PDFt concept is presented for the deterioration factors of thermal effect, irradiation, neutralization and penetration of salinity by referring to the recent papers.
