EFFECT OF NBO/T OF BIOMASS ASH ON COMPRESSIVE STRENGTH OF HARDENED CEMENT

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  • TAKAGI Ryoichi
    HAZAMA ANDO CORPORATION, Construction Headquarters, Technical Research Institute（515-1, Karima, Tsukuba-shi, Ibaraki 305-0822, Japan）
  • HAYASHI Toshinari
    HAZAMA ANDO CORPORATION, Construction Headquarters, Technical Research Institute（515-1, Karima, Tsukuba-shi, Ibaraki 305-0822, Japan）
  • KAMIMURA Koya
    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

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Other Title
  • バイオマス灰のNBO/Tがセメント硬化体の圧縮強度に及ぼす影響

Abstract

<p>In this study, various physical properties of hardened cement using a large amount of biomass ash were investigated, focusing on the effect of NBO/T, a chemical indicator of ash, on the hardened body. The results of FT-IR and Al-NMR analysis showed that ettringite, C-A-S-H, and monosulfate were formed in large amounts in the hardened cement. This was thought to be one factor in the higher compressive strength. A positive correlation between NBO/T of the biomass ash and compressive strength of the hardened product was confirmed, suggesting that NBO/T may be used as an indicator for estimating the blending strength.</p>

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