EXPERIMENTAL STUDY ON THE TEST METHOD OF THE DRY DENSITY FOR THE SHIELD CONCRETE

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  • TAKEUCHI Kenji
    Manager, Office of Civil Eng. and Architecture, The Kansai Electric Power Co., Inc.
  • OZAKI Masahiko
    Chief Manager, Nuclear Power Division, The Kansai Electric Power Co., Inc., Dr. Eng.
  • NAKAO Masazumi
    Branch Manager, Wakasa Branch, The General Environmental Technos
  • GOTO Shoichi
    Section Manager, Engineering Dept. Nuclear Facilities Division, Obayashi Corporation
  • ICHISE Kenichi
    General Manager, Technical Research Institute, Technology Division, Obayashi Corporation, Dr. Eng.

Bibliographic Information

Other Title
  • 遮へいコンクリートの乾燥単位容積質量試験方法に関する実験的研究
  • シャヘイ コンクリート ノ カンソウ タンイ ヨウセキ シツリョウ シケン ホウホウ ニ カンスル ジッケンテキ ケンキュウ シケン ジョウケン ノ ケントウ
  • Examination of test condition variability
  • 試験条件の検討

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This paper describes the study on the appropriate test method of the dry density for the shielding concrete. A series of experiments was conducted based on the Latin square method considering cement type and test condition variability. The following conclusions can be drawn.<br>1. The drying convergence time of a concrete specimen depends on the pre-curing period, the shape of the specimen and the drying temperature. The longer pre-curing period, larger specimen size and lower drying temperature make the drying convergence time longer.<br>2. Although there are two judgment criteria for oven-dry condition of the concrete specimen and these two criteria influence the drying convergence time, these two criteria do not influence the dry density of the concrete specimen.

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