EXPERIMENTAL STUDY ON VARIOUS FLUIDITY, UNDERWATER SEPARATION AND COMPRESSIVE STRENGTH OF GROUT MIXED WITH CELLULOSE ETHER

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  • HISADA Mao
    KUMAMOTO UNIVERSITY, Graduate School of Science and Technology（2-39-1, Kurokami, Chuo-ku, Kumamoto-shi, Kumamoto 860-8555, Japan）
  • MURAKAMI Kiyoshi
    KUMAMOTO UNIVERSITY, Graduate School of Science and Technology（2-39-1, Kurokami, Chuo-ku, Kumamoto-shi, Kumamoto 860-8555, Japan）
  • SATOH Ayumi
    KUMAMOTO UNIVERSITY, Graduate School of Science and Technology（2-39-1, Kurokami, Chuo-ku, Kumamoto-shi, Kumamoto 860-8555, Japan）
  • KONISHI Hidekazu
    SHIN-ETSU CHEMICAL CO., LTD., Specialty Chemicals Research Center（28-1, Nishi-fukushima, Kubiki-ku, Joetsu-shi, Niigata 942-8601, Japan）

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Other Title
  • セルロースエーテル混入によるグラウト材の各種流動性、水中分離度および圧縮強度に関する実験的研究

Abstract

<p>In this study, for the purpose of developing underwater grout, experiments were conducted regarding various fluidity, underwater separation and compressive strength of cellulose ether mixed grout using cellulose ethers with various molecular weights and chemical structures. As a result, it was experimentally confirmed that the compressive strength of cellulose ether mixed grout is affected by the fluctuation of air content due to the mixing of the cellulose ether and the defoaming agent, but the influence of the difference in the molecular weight and the chemical structure of the cellulose ether on the compressive strength is small, and that there is a high correlation between the viscosity of the aqueous solution of cellulose ether, various fluidities and the pH value.</p>

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