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    • 5. 发明专利
    • Method for manufacturing concrete and method for preventing initial stage cracking by drying from occurring
    • 用于制造混凝土的方法和通过干燥从预防初始阶段破裂的方法
    • JP2005280113A
    • 2005-10-13
    • JP2004097859
    • 2004-03-30
    • Sumitomo Osaka Cement Co Ltd住友大阪セメント株式会社
    • HARADA SHUSUKEUCHIDA YOSHIOEDAMATSU YOSHINOBUNAKAMURA SHIROAOKI MAKITACHIBANA KIKUO
    • B28C7/00
    • PROBLEM TO BE SOLVED: To make flow properties of a ready mixed concrete good, and to relatively conveniently prevent initial stage cracking by drying from occurring while good workability is kept.
      SOLUTION: A method for manufacturing a concrete comprising carrying the ready mixed concrete to a site for feeding while it is agitated, and feeding it, is characterized by that after the ready mixed concrete is carried to the site for feeding, at least one kind of a concrete admixture selected from a high performance water reducing agent, a high performance AE water reducing agent and a superplasticizing agent is compounded into the ready mixed concrete before feeding. In addition, the method is characterized by that after the ready mixed concrete is carried to the site for feeding while the ready mixed concrete is agitated, at least one kind of the concrete admixture selected from the high performance water reducing agent, the high performance AE water reducing agent and the superplasticizing agent is compounded into the ready mixed concrete before feeding.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 待解决的问题:为了使预拌混凝土的流动性良好,并且相对方便地通过干燥而相对方便地防止初始阶段开裂,同时​​保持良好的可加工性。 解决方案:一种用于制造混凝土的方法,其特征在于,将预混合混凝土运送到搅拌位置进行进料,并将其进料,其特征在于,将预混混凝土运送至至少进料部位,至少 选择高性能减水剂,高性能AE减水剂和超增塑剂的一种混凝土外加剂在进料前混入预拌混凝土中。 此外,该方法的特征在于,在将混合后的混凝土搅拌的同时将混合后的混凝土运送到现场进行供给的场合,至少选择一种选自高性能减水剂,高性能AE 减水剂和超塑化剂在喂食前混入预拌混凝土中。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Production of segment using concrete having high fluidity
    • 使用具有高流动性的混凝土生产分段
    • JPH11278960A
    • 1999-10-12
    • JP8161198
    • 1998-03-27
    • Kajima CorpSumitomo Osaka Cement Co Ltd住友大阪セメント株式会社鹿島建設株式会社
    • NAGAOKA SEIICHISUZUKI HIROAKIEDAMATSU YOSHINOBUMATSUMOTO SEIJIROYOSHIMURA MUNEOSHINODA YOSHINOBUSATO TAKUROMURAI YASUHIKO
    • C04B40/02
    • C04B40/024C04B28/00C04B32/02C04B41/00
    • PROBLEM TO BE SOLVED: To economically and efficiently obtain a segment forming neither air pock mark nor water pock mark, by placing a concrete having high fluidity in a closed type frame mold, rapidly curing the concrete with steam at a specific temperature, removing the frame mold after a fixed time and finishing the surface of the concrete by a trowel.
      SOLUTION: A concrete 5 having high fluidity is placed in a frame mold 3 for producing a closed type segment, equipped with a main body frame mold 1 and a cover frame mold 2. The concrete 5 having high fluidity has, for example, fluidity of about 30% water powder ratio, about 60±5 cm, slump flow value and about 4.5% air amount and high self filling and does not require vibration fastening causing noise and vibration. Immediately after the placing of the concrete, the concrete is cured with steam in an atmosphere at 30-50°C and the hardening of the concrete 5 is mildly promoted. The cover frame mold 2 is removed 2 to 4 hours after the placing and the surface of the concrete 5 capable of retaining the shape is finished by a trowel to smooth the unevenness. Then the concrete 5 is continuously cured with steam for a fixed time, is hardened and removed from the main body frame mold 1.
      COPYRIGHT: (C)1999,JPO
    • 要解决的问题:为了经济有效地获得既不形成空气标记也不形成水痕迹的区段,通过将具有高流动性的混凝土放置在封闭型框架模具中,在特定温度下用蒸汽快速固化混凝土,移除框架 模具经过一段固定的时间,并用t刀整理混凝土的表面。 解决方案:具有高流动性的混凝土5被放置在用于制造具有主体框架模具1和盖框模具2的封闭型段的框架模具3中。具有高流动性的混凝土5具有例如流动性 约30%水粉比,约60±5厘米,坍落度流量值和约4.5%的空气量和高自填,不需要振动紧固,造成噪音和振动。 在混凝土放置后,混凝土在30-50℃的气氛中用蒸汽固化,并且混凝土5的硬化得到轻微的提升。 盖架模具2在放置后2至4小时移除,并且能够保持形状的混凝土5的表面被t刀完成以平滑不平坦度。 然后将混凝土5用蒸汽持续固化一段固定的时间,并从主体框架模具1中硬化和去除。