ひずみ制御機能を備えたコンクリートの収縮ひび割れ試験装置の開発

書誌事項

タイトル別名
  • DEVELOPMENT OF A NEW APPARATUS FOR SHRINKAGE CRACKING TEST OF CONCRETE
  • ヒズミ セイギョ キノウ オ ソナエタ コンクリート ノ シュウシュク ヒビワレ シケン ソウチ ノ カイハツ

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抄録

In order to clarify the mechanism and the criterion of shrinkage cracking of concrete, it is necessary to obtain the data on the relationship between the stress restraining concrete and teh occurrence of cracking. Then, in this research, the new testing apparatus in which the restraint ratio can be kept constant and the stress occurring in concrete can be directly measured was developed. For the verification of performance of the newly developed apparatus, tests for the static direct tensile strength, tensile creep, tensile stress relaxation test and drying shrinkage cracking were carried out. It was found that the newly developed testing apparatus was available as a multipurpose testing apparatus.

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