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    • 5. 发明专利
    • Centrifugal casting method of concrete, and centrifugally casted concrete
    • 混凝土的离心铸造方法和离心浇注混凝土
    • JP2009078478A
    • 2009-04-16
    • JP2007250355
    • 2007-09-27
    • Sumitomo Osaka Cement Co Ltd住友大阪セメント株式会社
    • NAGAOKA SEIICHI
    • B28B1/20C04B24/22C04B24/26C04B28/02
    • PROBLEM TO BE SOLVED: To provide a centrifugal casting method of concrete, which is easy to knead concrete to be used, and enables the manufacture of ultrahigh strength concrete products, and also can be operated industrially stably.
      SOLUTION: The centrifugal casting method of concrete comprises a process of kneading and mixing a cement composition in which water/bonding agent ratio is 20 mass% or less, and a high-performance AE water reducing agent to prepare concrete in which a slump flow is 50 cm or more, a process of throwing the prepared concrete in a formwork of a centrifugal molding machine while rotating slowly the formwork, a process of adding to the concrete an additive having a bad compatibility with the high-performance AE water reducing agent to decrease the fluidity of the concrete, and a process of rotating the formwork at high speed after the decrease in fluidity of the concrete.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供混凝土的离心浇铸方法,其易于混炼使用,并且能够制造超高强度混凝土制品,并且还可以在工业上稳定地进行操作。 解决方案:混凝土的离心铸造方法包括将水/粘结剂比例为20质量%以下的水泥组合物和高性能AE减水剂混炼混合的方法,制备混凝土,其中, 坍落度为50厘米或以上,是将离心成型机的模板中的预制混凝土投入到同时慢速旋转模板的过程中,向混凝土添加与高性能AE水相容性差的添加剂的工序 降低混凝土流动性的试剂,以及混凝土流动性降低后高速旋转模板的工序。 版权所有(C)2009,JPO&INPIT
    • 7. 发明专利
    • Method for suppressing color skip or mottling of cement hardened body
    • 用于抑制水泥硬化体的颜色滑移或毛刺的方法
    • JP2007269611A
    • 2007-10-18
    • JP2006100532
    • 2006-03-31
    • Sumitomo Osaka Cement Co Ltd住友大阪セメント株式会社
    • MATSUMOTO KOICHIKOIDE TAKAONAGAOKA SEIICHIMIURA SHINJI
    • C04B24/32C04B28/02C04B103/60
    • C04B24/32C04B28/02C04B24/02
    • PROBLEM TO BE SOLVED: To provide a method for previously effectively suppressing the generation of color skip or mottling in a cement hardened body such as a mortar or concrete structure, an architectural concrete, or a concrete product using cement.
      SOLUTION: The method for suppressing the generation of color skip or mottling in a cement hardened body comprises applying a material, obtained by mixing a water and/or alcohol soluble admixing agent with cement, to a cement hardened body. The admixing agent is an alkyleneoxide or its addition product expressed by general formula: R
      1 O(AO)nR
      2 (wherein, R
      1 and R
      2 are the same or different groups selected from the group comprising hydrogen, alkyl groups, and phenyl groups; A is alkylene group; and n is an integer of ≥1).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种用于以前有效地抑制水泥硬化体如砂浆或混凝土结构,建筑混凝土或使用水泥的混凝土产品中的颜色跳跃或斑驳的产生的方法。 解决方案:用于抑制水泥硬化体中的颜色跳跃或斑驳产生的方法包括将通过将水和/或醇可溶性混合剂与水泥混合而获得的材料施加到水泥硬化体上。 混合剂是由通式表示的环氧烷或其加成产物:其中,R SB = O(AO)nR SB 2(其中,R SB = 1 / R SB 2是选自氢,烷基和苯基的相同或不同的基团; A是亚烷基; n是≥1的整数)。 版权所有(C)2008,JPO&INPIT