Method for Estimating Quantity of Non-Hydrated Cement in a Cement Recycling System

• Atarashi Daiki

  Tokyo Institute of Technology, Graduate School of Science and Engineering, Tokyo, Japan.

• Kamio Tetsuji

  Tokyo Institute of Technology, Graduate School of Science and Engineering, Tokyo, Japan.

• Aikawa Yutaka

  Tokyo Institute of Technology, Graduate School of Science and Engineering, Tokyo, Japan.

• Miyauchi Masahiro

  Tokyo Institute of Technology, Graduate School of Science and Engineering, Tokyo, Japan.

• Sakai Etsuo

  Tokyo Institute of Technology, Graduate School of Science and Engineering, Tokyo, Japan.

抄録

The objective of this research was to develop a method for the rapid estimation of the quantity of residual cement in sludge water and to control its hydration reaction using sodium gluconate in order to enable the residual cement in sludge water to be effectively utilized. The quantity of residual cement in sludge water can be estimated by measuring the heat of hydration liberated in 24 h using a conduction calorimeter. It is possible to recommence sodium gluconate-controlled cement hydration using magnesium nitrate. A method was developed to simulate the rate of the hydration reaction, which makes it possible to estimate the quantity of residual cement in sludge water by measuring the rate of heat liberation of hydration over 10 h.

収録刊行物

• Journal of Advanced Concrete Technology

  Journal of Advanced Concrete Technology 13 (1), 44-49, 2015-01-27

  公益社団法人 日本コンクリート工学会

キーワード

• General Materials Science
• Building and Construction

詳細情報

• CRID: 1390282680195837952
• NII論文ID: 130004940160
• NII書誌ID: AA11862067
• DOI: 10.3151/jact.13.44
• ISSN: 13473913
• ISSN: 13468014
• Web Site: http://ir.lib.shimane-u.ac.jp/31814
• Web Site: https://www.jstage.jst.go.jp/article/jact/13/1/13_44/_pdf
• 本文言語コード: en
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