THE EFFECT OF SODIUM HYDROXIDE SOLUTION CONCENTRATION ON CLAY-ALITE HYDRATION PRODUCTS

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  • MIYASHITA Ayano
    NIIGATA UNIVERSITY, Graduate School of Science and Technology（8050, Ikarashi Nino-cho, Nishi-ku, Niigata-shi, Niigata 950-2181, Japan）
  • SAITO Tsuyoshi
    NIIGATA UNIVERSITY, Faculty of Engineering（8050, Ikarashi Nino-cho, Nishi-ku, Niigata-shi, Niigata 950-2181, Japan）
  • SUZUKI Kazuho
    NIIGATA UNIVERSITY, Graduate School of Science and Technology（8050, Ikarashi Nino-cho, Nishi-ku, Niigata-shi, Niigata 950-2181, Japan）
  • SAEKI Tatsuhiko
    NIIGATA UNIVERSITY, Faculty of Engineering（8050, Ikarashi Nino-cho, Nishi-ku, Niigata-shi, Niigata 950-2181, Japan）

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Other Title
  • 水酸化ナトリウム水溶液の濃度が粘土-エーライト系水和生成物に及ぼす影響

Abstract

<p>In this study, we evaluated the hydration process and products of cementitious materials made of clay and alite when mixed with aqueous sodium hydroxide solutions of varying concentrations. In both montmorillonite and kaolinite, the results showed that sodium hydroxide solution and calcium hydroxide generated by hydration of alite promoted the decomposition of clay structure. For the C-A-S-H produced, the silicate anion chain structure in the system with montmorillonite tended to be short due to the high Q1 component, while the silicate anion chain structure in the system with kaolinite tended to be long due to the low Q1 component.</p>

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