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    • 4. 发明专利
    • Method of manufacturing ultra-high strength concrete member, and method of analyzing form removal procedure
    • 制造超高强度混凝土构件的方法和分析形式拆除程序的方法
    • JP2009052268A
    • 2009-03-12
    • JP2007219393
    • 2007-08-27
    • Sumitomo Mitsui Construction Co LtdSumitomo Osaka Cement Co Ltd三井住友建設株式会社住友大阪セメント株式会社
    • MATSUDA HIROSHINISHIMOTO YOSHIKATSUKAWAKAMI KOJINAGAOKA SEIICHI
    • E04G21/02E04B1/62E04B2/84G01N3/00
    • PROBLEM TO BE SOLVED: To avoid cracking in ultra-high strength concrete during curing, and to shorten a curing period. SOLUTION: When the ultra-high strength concrete 3 is cured, a heat insulating form 2 is employed. In the present invention, the heat insulating form 2 is constructed by laminating a plurality of heat insulating members 1 on each other, and then the heat insulating members 1 are successively detached. The procedure and timing of detaching the heat insulating members 1 are obtained based on analysis by the finite element method. By adequately determining the thickness of the initial heat insulating form 2, initial cracking (cracking occurring before first form removal is carried out) can be avoided. Further by adequately determining the timing at which the heat insulating members 1 are detached, cracking at the time of form removal (i.e. cracking caused by thermal shock) can be avoided, and thus the curing period before detachment of all the heat insulating members 1 can be shortened. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了避免固化过程中超高强度混凝土的开裂,缩短固化时间。 解决方案:当超高强度混凝土3固化时,采用隔热形式2。 在本发明中,绝热体2通过将多个隔热构件1彼此层叠而构成,然后隔热构件1依次分离。 基于有限元法的分析,求出绝热部件1的拆卸顺序和时机。 通过适当地确定初始隔热层2的厚度,可以避免初始裂纹(在第一次脱模之前发生的裂纹)。 此外,通过适当地确定绝热构件1脱离的时间,可以避免在形成除去时的裂纹(即,由热冲击引起的裂纹),因此所有隔热构件1的脱离之前的固化时间可以 缩短。 版权所有(C)2009,JPO&INPIT
    • 8. 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
    • 10. 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