CONCRETE PAVEMENT STRUCTURAL EVALUATION USING FWD DEFLECTION

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  • FWDたわみによるコンクリート舗装の構造評価

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This paper describes a method for structural evaluation of concrete pavements using FWD deflections. The results obtained in the previous studies were reviewed in this paper. Especially, temperature gradient of concrete slabs affects FWD deflections of concrete pavements. Therefore, we examined the influence of the temperature gradient and loading positions on the concrete slab. On basis of these factors, structural evaluation, critical deflections of lower modulus of base course reaction were proposed. Furthermore, structural evaluation methods of concrete pavements were proposed for the network level and the project level.

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