EFFECT OF METAKAOLIN-BASED ARTIFICIAL POZZOLAN ON MASS TRANSFER RESISTANCE OF CONCRETE USING BLAST-FUNACE SLAG CEMENT CLASS B

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  • SAGAWA Yasutaka
    KYUSHU UNIVIERSITY, Faculty of Engineering, Department of Civil Engineering（744 Motooka, Nishi-ku, Fukuoka-shi, Fukuoka 819-0395, Japan）
  • SHIKADA Haruto
    OKUMURA CORPORATION, Kyushu Branch Office（2-19-1 Sanno, Yahata Higashi-ku, Kitakyushu-shi, Fukuoka 805-8531, Japan）（a former student in KYUSHU UNIVERSITY, Graduate School of Engineering）
  • YAMAMOTO Daisuke
    NATIONAL INSTITUTE OF TECHNOLOGY, Oita College, Department of Civil and Environmental Engineering（1666 Maki, Oita-shi, Oita 870-0152, Japan）
  • KASHIWAGI Takeharu
    KASHIWAGI KOSAN CO., LTD.（1-27-7 Kamimuta, Hakata-ku, Fukuoka-shi, Fukuoka 812-0006, Japan）

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Other Title
  • 高炉セメントB種を用いたコンクリートの物質移動抵抗性へのメタカオリン含有人工ポゾラン混和の影響

Description

<p>This study was conducted on concrete using blast furnace cement Class B and metakaolin-based artificial pozzolan （MKP） as mineral admixture. Two curing methods, water curing at 20℃ and air curing after demolding, were used to evaluate permeability of substances at 1 month, 6 months and 1 year. When the water curing was continued for MKP mixed concrete, sift of pore size distribution into smaller size, smaller chloride ion diffusion coefficient, and smaller water permeation rate coefficient were observed. A correlation was also clarified between the chloride ion diffusion coefficient and surface electrical resistivity in this study.</p>

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