アルカリ骨材反応を起こした鉄筋コンクリート実構造物の変形特性の考察

概要

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The deformation characteristic of a concrete affected by Alkali-Silica reaction is making clear by a lot of studies in laboratories and observations of actual structure. In the case of un-reinforced concrete, these expansion rates affected by Alkali-silica reaction has been able to nearly predict by measuring of residue expansion rate that is tested core sample. Also, it is well known that expansion rate of a reinforced concrete affected by Alkali-silica reaction is come under the influence of constraint of reinforcement. The almost reports of observations for expansion rate affected by Alkali-silica reaction have been ended when expansion rate was saturated. However, some of papers have reported that actual structure has tended to constrict beyond about 15years. This paper considered deformation characteristic of actual reinforced concrete structure affected by Alkali-silica reaction due to measurement of actual expansion rate and residue expansion rate by long term aging phenomena observations beyond 25 years, and it proposed the model of deformation characteristic that is constrained concrete affected by Alkali-silica reaction.
社団法人日本建築学会の論文
2007-08-30