EXPERIMENTAL STUDY ON AIR-PERMEABILITY AND CARBONATION OF FULL SCALE MODEL OF CONCRETE WALL USING VARIOUS KINDS OF BINDING MATERIAL

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  • NONAKA Akira
    Kumagaigumi Technical Research and Development Institute
  • YUASA Noboru
    Dept. of Architecture and Architectural Eng., College of Industrial Technology, Nihon Univ.
  • OTSUKA Shuzo
    Dept. of Building Technologists, Monotsukuri Institute of Technologists
  • ISHIWATA Shota
    Graduate School of Technologists, Monotsukuri Institute of Technologists
  • NAKATA Yoshihisa
    Dept. of Architecture, College of Science and Technology, Nihon Univ.

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Other Title
  • 各種結合材を用いたコンクリート模擬壁部材の透気性および中性化に関する実験研究
  • カクシュ ケツゴウザイ オ モチイタ コンクリート モギ カベブザイ ノ トウキショウ オヨビ チュウセイカ ニ カンスル ジッケン ケンキュウ

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This research examined air-permeability of concrete mock test piece uses various kinds of binding material. The parameter of the experiment was various kinds of binding material, water binding material ratio, and an age of demold. When the water-cement ratio is small and the hydration is slow, the air-permeability is small. Influence of the age of demold was admitted only by the rapid air-permeation speed. The relation between the depth of neutralization and the air-permeability coefficient was able respectively to be shown by Portland cement, Portland blast-furnace slag cement, and Portland fly-ash cement in one line. However, coefficients of determination were smaller than the researches in the past.

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