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    • 21. 发明专利
    • Production method of cement, cement composition, and cement hardened body
    • 水泥,水泥组合物和水泥硬化体的生产方法
    • JP2009234821A
    • 2009-10-15
    • JP2008080303
    • 2008-03-26
    • Sumitomo Osaka Cement Co Ltd住友大阪セメント株式会社
    • ONO AKIRA
    • C04B7/52C04B7/48C04B24/02C04B28/02
    • C04B7/52C04B2103/52C04B7/48C04B24/02C04B24/023
    • PROBLEM TO BE SOLVED: To provide a production method of cement, by which the amount of a grinding aid included in cement hardly fluctuates among production lots, the proportion of gypsum hemihydrate included in cement hardly fluctuates among production lots, and fluctuation in physical properties of a cement composition among production lots can be suppressed, to provide a cement composition capable of suppressing fluctuation in physical properties among production lots, and to provide a cement hardened body capable of suppressing fluctuation in physical properties among production lots by using the above cement.
      SOLUTION: The method for manufacturing cement comprises carrying out a grinding step of grinding cement clinker and gypsum in the presence of a grinding aid having a boiling point of not higher than 250°C to obtain a ground material, and a heat treatment step of heat treating the ground material.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供水泥的生产方法,水泥中所含的研磨助剂的量在生产批次中几乎不波动,水泥中包含的石膏半水合物的比例在生产批次中几乎不波动,波动 可以抑制生产批次中的水泥组合物的物理性质,提供能够抑制生产批次之间的物理变化波动的水泥组合物,并且通过使用上述方法提供能够抑制生产批次之间物理变化波动的水泥硬化体 水泥。 解决方案:水泥的制造方法包括在沸点不高于250℃的研磨助剂的情况下进行研磨水泥熟料和石膏的研磨工序,得到研磨材料,并进行热处理 对地面材料进行热处理的步骤。 版权所有(C)2010,JPO&INPIT