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    • 12. 发明专利
    • 養生シート設置装置及び養生シート設置方法
    • 固化装置和固化装置的安装方法
    • JP2014214553A
    • 2014-11-17
    • JP2013094536
    • 2013-04-26
    • 鹿島建設株式会社Kajima Corp
    • IKEMATSU KENJISAKATA NOBORUWATANABE KENZONUKUSHINA TATSUYAHAGIWARA TOMOHISA
    • E21D11/10E04G21/02
    • E04G21/02E21D11/10
    • 【課題】トンネルの壁面に打設される覆工コンクリートの養生シートを、効率良く設置する設置装置及び設置方法を提供する。【解決手段】養生シート設置装置1は、トンネル100の壁面101に打設される覆工コンクリートCの養生シート10を設置する装置であって、養生シート10がロール状に巻かれてなる養生シートロール11をトンネル100の周方向に移動させ養生シートロール11を解きながらセントル91の外側面92上に養生シート10を装着する養生シート装着部3と、周方向に湾曲して延在しセントル91及び養生シート10の外側に打設された覆工コンクリートCに向けて養生シート10を押さえ込むための固定バンド6を予め保持する固定部材保持部5と、を備える。【選択図】図1
    • 要解决的问题:提供一种安装装置和安装方法,用于有效地安装放置在隧道的墙壁表面上的衬里混凝土的固化片。解决方案:固化片安装装置1是用于安装固化片10的装置 设置在隧道100的壁面101上的衬里混凝土C,并且包括:固化片安装部3,用于将固化片10安装在拱中心91的外表面92上,同时通过移动来释放固化片11 将固化片10沿隧道100的圆周方向卷成卷状的固化片卷11; 以及固定构件保持部5,用于预先固定固定带6,以将固化片10朝向拱形中心91外侧的衬里混凝土C和固化片10沿圆周方向弯曲延伸。
    • 14. 发明专利
    • Method for manufacturing concrete structure, and concrete curing sheet
    • 制造混凝土结构的方法和混凝土固化片
    • JP2014185506A
    • 2014-10-02
    • JP2013092281
    • 2013-04-25
    • Kajima Corp鹿島建設株式会社
    • SAKATA NOBORUWATANABE KENZONUKUSHINA TATSUYAYANAI SHUJISAKAI GOROYOKOZEKI KOSUKEKONDO KEIJI
    • E04G21/02E04G9/10
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a concrete structure, capable of manufacturing a concrete structure of prescribed quality by effectively utilizing water.SOLUTION: A method for manufacturing a concrete structure includes: an installation step for installing a concrete form 30 for concrete placing; a placing step for placing concrete in a state that a curing sheet 10 is stuck on an inner face of the concrete form 30; and a concrete form removal step for removing the concrete form 30 after the concrete C is placed. A contact angle between a contact surface on the concrete side of the curing sheet 10 used for the placing step and water is equal to or more than 50 degrees, thereby suppressing the generation of bleeding water.
    • 要解决的问题:提供一种混凝土结构的制造方法,其能够通过有效利用水来制造具有规定质量的混凝土结构。解决方案:一种制造混凝土结构的方法,包括:安装步骤,用于安装混凝土模板30,用于 混凝土配置 将固化片10固定在混凝土模30的内面的状态下配置混凝土的放置工序; 以及在混凝土C放置之后去除混凝土模板30的混凝土表面去除步骤。 用于放置步骤的固化片10的混凝土侧的接触表面与水之间的接触角等于或大于50度,从而抑制出水的产生。
    • 16. 发明专利
    • Temperature control system
    • 温度控制系统
    • JP2013185296A
    • 2013-09-19
    • JP2012048420
    • 2012-03-05
    • Kajima Corp鹿島建設株式会社
    • YANAI SHUJIWATANABE KENZOSAKATA NOBORUKUMABE ATSUSHIWATANABE ARIHISANUKUSHINA TATSUYA
    • E04G21/02C04B40/02
    • PROBLEM TO BE SOLVED: To provide a temperature control system capable of reducing a temperature difference between an interior and an exterior of a concrete structure after placing concrete thereof.SOLUTION: Water in a cooling water tank 3 is supplied to a cooling hole 21 of a concrete structure 2 through first piping 4 to cool an interior of the concrete structure 2. The water heated inside the cooling hole 21 by absorbing hydration heat is collected through second piping 5 and stored in a curing water tank 6. The water stored in the curing water tank 6 is automatically heated further to a preset temperature T1 with heaters 8 and 8 controlled by a control device 9 on the basis of a measured temperature T0 of the concrete structure 2 measured with a thermocouple 7. The water heated inside the curing water tank 6 is then supplied to the exterior of the concrete structure 2 through third piping 10 to heat the concrete structure 2 from an outside thereof.
    • 要解决的问题:提供一种温度控制系统,其能够在放置混凝土之后降低混凝土结构的内部和外部之间的温差。解决方案:将冷却水箱3中的水供应到冷却水槽21的冷却孔21 混凝土结构2通过第一管道4冷却混凝土结构2的内部。通过吸收水合热量在冷却孔21内加热的水通过第二管道5收集并存储在固化水箱6中。储存在固化中的水 基于由热电偶7测量的混凝土结构2的测量温度T0,将水箱6进一步加热到预设温度T1,加热器8和8由控制装置9控制。固化水箱内加热的水 6然后通过第三管道10被供给到混凝土结构体2的外部,以从其外部加热混凝土结构2。
    • 18. 发明专利
    • Concrete composition and method of manufacturing the same
    • 混凝土组合物及其制造方法
    • JP2013023418A
    • 2013-02-04
    • JP2011161160
    • 2011-07-22
    • Kajima Corp鹿島建設株式会社
    • ONO TOSHIOFUKUYA YOSHINORIHAGIWARA TOMOHISAWATANABE KENZOMATSUBARA KOMEI
    • C04B28/02C04B24/00C04B24/12C04B24/16C04B24/26
    • PROBLEM TO BE SOLVED: To provide a concrete composition that can obtain flow retention property applicable to a case where time to casting exceeds two hours and easily adjust fresh properties in accordance with changes in temperature.SOLUTION: A concrete composition includes cement, aggregate, water, and at least two kinds of dispersants. At least one kind of the dispersants is selected from the group consisting of a water reducing agent delay type, an AE water reducing agent delay type, a high performance AE water reducing agent delay type, and a fluidizing agent delay type. An initial slump flow value X and a 50 cm arrival time Y satisfy either condition A or condition B as follows. Condition A is 550≤X≤600 and -0.5X+320≤Y≤-2X+1,280. Condition B is 600≤X≤700 and -0.1X+80≤Y≤-0.4X+320.
    • 要解决的问题:提供一种能够获得流动保持性的具体组合物,其适用于浇铸时间超过2小时并根据温度变化容易地调节新鲜特性的情况。 解决方案:混凝土组合物包括水泥,骨料,水和至少两种分散剂。 至少一种分散剂选自减水剂延迟型,AE减水剂延迟型,高性能AE减水剂延迟型和流化剂延迟型。 初始坍落度流动值X和50cm到达时间Y满足条件A或条件B如下。 条件A为550≤X≤600且-0.5X +320≤Y≤-2X + 1,280。 条件B为600≤X≤700,-0.1X +80≤Y≤-0.4X + 320。 版权所有(C)2013,JPO&INPIT
    • 19. 发明专利
    • Concrete curing method and device
    • 混凝土固化方法和装置
    • JP2012233309A
    • 2012-11-29
    • JP2011100678
    • 2011-04-28
    • Kajima Corp鹿島建設株式会社
    • EGASHIRA MASAYUKIYANAI SHUJIWATANABE KENZOANZAI MASARUMUKAIHARA KENWATANABE ARIHISANUKUSHINA TATSUYASAKATA NOBORU
    • E01D21/00E01D1/00E04G21/02E21D11/10
    • PROBLEM TO BE SOLVED: To provide a curing method and device for promoting the strength development of concrete while suppressing the occurrence of crack due to internal constraint and crack due to drying shrinkage by imparting excellent heat and moisture retaining effects to a curing material without the need for installing a scaffold and timbering during curing on the lower face of the concrete.SOLUTION: Gas lighter than air is supplied to the inside of a flotation type curing mat 7 on which a wire 9 is mounted at one end, and the flotation type curing mat 7 is floated while being held from the upper side by the wire 9 and then installed along a lower face 25 of a lower floor slab 15 of a block 5 of a PC box girder 1 for curing the concrete-placed lower face 25 of the lower floor slab 15. As required, a moisture retaining material is provided between the flotation type curing mat 7 and the lower face 25. After finishing the curing, the inside gas is collected and the flotation type curing mat 7 is moved to a concrete-placed lower face 25 of a lower floor slab 15 of a new block 5.
    • 待解决的问题:提供一种用于促进混凝土的强度发展的固化方法和装置,同时通过赋予固化材料优异的保湿效果,抑制由于内部约束引起的裂纹的发生和由于干燥收缩引起的裂纹 而不需要在混凝土的下表面上固化时安装脚手架和木材。

      解决方案:将比空气轻的气体供给到其一端安装有导线9的浮选型固化垫7的内部,并且浮选型固化垫7在从上侧被保持的同时浮起 电线9,然后沿着PC箱梁1的块体5的下层板15的下表面25安装,用于固化下层楼板15的混凝土放置的下表面25.根据需要,保湿材料是 设置在浮选型固化垫7和下表面25之间。固化完成后,收集内部气体,并将浮选型固化垫7移动到新的下层板15的混凝土放置下表面25 (C)2013,JPO&INPIT