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    • 7. 发明公开
    • 해양 콘크리트용 혼합재 및 이를 이용한 시멘트 조성물
    • 海水混凝土的化合物和水泥的组成
    • KR1020100042943A
    • 2010-04-27
    • KR1020080102167
    • 2008-10-17
    • (주)대우건설한일시멘트 (주)
    • 박상준김경민김정환노현승조성현배준영
    • C04B18/14
    • Y02W30/94
    • PURPOSE: An admixture for a maritime concrete and a cement composite including thereof are provided to improve reinforcing rod corrosion resistance by preventing an activation of infiltrated chloride ion in the concrete. CONSTITUTION: An admixture for a maritime concrete contains 55~90 parts by weight of blast furnace slag fine powder with a first grading, 8~35 parts by weight of blast furnace slag fine powder with a second grading, and 2~10 parts by weight of salt damage preventing agent. The fineness of the first grading is 6,000~8,000 square centimeters per gram. The fineness of the second grading is 3,000~4,000 square centimeters per gram. The salt damage preventing agent is a nitroxy radical crystalline compound. A maritime cement composite contains 30~80 parts by weight of cement, 10~40 parts by weight of admixture from above, and 10~30 parts by weight of fly ash.
    • 目的:通过防止混凝土中渗透的氯离子的活化,提供包括海水混凝土和水泥复合材料在内的混合物,以增强其耐腐蚀性。 构成:海水混凝土的外加剂含有55〜90重量份的高炉矿渣细粉,第一等级,8〜35重量份的高炉矿渣粉末,二级分级,2〜10重量份 的防盐剂防治剂。 第一级的细度为每克6000〜8000平方厘米。 二级分级细度为3000〜4000平方厘米/克。 防盐剂是硝酰自由基结晶化合物。 水泥复合材料含水泥30〜80重量份,上述混合物10〜40重量份,粉煤灰10〜30重量份。
    • 8. 发明公开
    • 실제 구조체 콘크리트의 강도 발현 정도에 대응하여제어되는 온도 추종 공시체 양생 장치
    • 混凝土样品固化装置根据实际结构混凝土的强度控制,通过测量实际结构的混凝土强度,可以将样品的固化条件与实际混凝土结构的固化条件相对应
    • KR1020050018080A
    • 2005-02-23
    • KR1020030056030
    • 2003-08-13
    • (주)대우건설
    • 김기동오보환이상수박상준
    • E04G21/02
    • C04B40/0075C04B40/0082G01K13/00
    • PURPOSE: A concrete specimen curing apparatus controlled according to the strength of actual structural concrete is provided to measure the strength of actual structural concrete precisely and to secure the confidence on the quality of a concrete structure, and to prevent the delay on the period of construction by deciding the time for dismantling a form or timbering exactly. CONSTITUTION: The concrete specimen curing apparatus controlled according to the strength of actual structural concrete contains: a curing chamber(10) composed of a casing(12) having the appointed size to supply a space for a specimen(T) and provided with a heater unit(20) and a freezer unit(30) for controlling the internal temperature; a primary temperature sensor(50) buried under a concrete structure(2) to measure the temperature of an actual concrete structure(2); a secondary temperature sensor(52) installed on the curing chamber(10) to measure the internal temperature of the curing chamber(10); and a temperature control unit(60) controlling the heater unit(20) and the freezer unit(30) to correspond the internal temperature of the curing chamber(10) to the temperature of the concrete structure(2) by comparing the temperature value inputted from the primary temperature sensor(50) of the concrete structure(2) with the temperature value inputted from the secondary temperature sensor(52) of the curing chamber(10).
    • 目的:提供根据实际结构混凝土强度控制的混凝土试样固化装置,精确测量实际结构混凝土的强度,确保混凝土结构质量的信心,防止施工期延误 通过决定拆卸表单或正确木材的时间。 构成:根据实际结构混凝土的强度控制的混凝土试样固化装置包括:固化室(10),其由具有指定尺寸的壳体(12)组成,以供给试样(T)的空间并设置有加热器 单元(20)和用于控制内部温度的冷冻单元(30); 埋在混凝土结构(2)下面以测量实际混凝土结构(2)的温度的初级温度传感器(50); 安装在固化室(10)上以测量固化室(10)的内部温度的二次温度传感器(52); 以及控制加热器单元(20)和冷冻单元(30)的温度控制单元(60),通过比较输入的温度值,将固化室(10)的内部温度与混凝土结构(2)的温度相对应 从混凝土结构(2)的一次温度传感器(50)到从固化室(10)的二次温度传感器(52)输入的温度值。
    • 9. 发明公开
    • 온돌바닥 미장용 조성물
    • 辐射加热板组合物
    • KR1020130050667A
    • 2013-05-16
    • KR1020110115868
    • 2011-11-08
    • (주)대우건설유진기업 주식회사
    • 박상준박형철고정원유재강김경민류득현전준영김훈상황해정유창달
    • C04B18/14C04B18/06C04B14/06C04B24/24
    • Y02W30/92Y02W30/94C04B18/04C04B14/06C04B2103/20C04B2103/34Y02W30/91
    • PURPOSE: A composition for pastering an ondol floor is provided to allow environment-friendlyness, an excellent workability at the construction, and excellent compressive strength and resistance against shrinkage deformation after the construction by mixing a dry mortar composition using industrial byproducts and a constructability enhancer. CONSTITUTION: A composition for plastering an ondol floor is a mixture of a dry mortar composition and a constructability enhancer. The dry mortar composition is formed of a blast furnace slag micropowder, cogeneration fly ash, incinerated paper mill sludge ash, gypsum, and sand. The dry mortar composition includes 3.0 to 15.0wt% of the blast furnace slag micropowder, 10.0 to 40.0wt% of the cogeneration fly ash, 3.0 to 10.0wt% of the incinerated paper mill sludge ash, 0.5 to 2.5wt% of the gypsum, and 50.0 to 80.0wt% of the sand. 0.05 to 0.15wt% of the constructability enhancer based on a weight of the dry mortar composition is mixed. The constructability enhancer comprises 70.0 to 90.0 wt% of superplasticizer and 10.0 to 30.0wt% of a retarder. The superplasticizer is at least one of a polycarboxylic acid based superplasticizer, a naphthalyene based superplasticizer, a lignin based superplasticizer, and a melamine based superplasticizer. The retarder is at least one of a boron retarder and a phosphoric acid retarder.
    • 目的:通过混合使用工业副产品的干砂浆组合物和可施工性增强剂,提供了用于粘贴ondol地板的组合物,以使得环境友好性,施工时的优异的可加工性和施工后的优异的抗压强度和抗收缩变形性。 构成:用于抹灰地板的组合物是干砂浆组合物和构建性增强剂的混合物。 干砂浆组成由高炉渣微粉,热电粉煤灰,焚烧造纸厂污泥灰,石膏和砂组成。 干砂浆组成包括高炉渣微粉3.0〜15.0重量%,热电粉煤灰10.0〜40.0重量%,焚烧造纸厂污泥灰3.0〜10.0重量%,石膏0.5〜2.5重量% 和50.0〜80.0重量%的砂。 将基于干砂浆组合物重量的可施工性增强剂的0.05至0.15重量%混合。 构建性增强剂包含70.0〜90.0重量%的超增塑剂和10.0〜30.0重量%的缓凝剂。 超增塑剂是基于多元羧酸的超增塑剂,基于萘树脂的超增塑剂,木质素基超增塑剂和三聚氰胺基超增塑剂中的至少一种。 缓凝剂是硼延迟剂和磷酸缓凝剂中的至少一种。
    • 10. 发明公开
    • 구조체콘크리트의 압축강도 평가방법
    • 用于结构混凝土的压缩强度评估方法
    • KR1020110007502A
    • 2011-01-24
    • KR1020090065051
    • 2009-07-16
    • (주)대우건설
    • 오보환박상준유재강고정원류동우김경민
    • G01N33/38G01K3/04G01M99/00
    • PURPOSE: A method for evaluating compressive strength of structural concrete is provided to efficiently manage a construction process and to improve reliability of concrete quality. CONSTITUTION: A method for evaluating compressive strength of structural concrete comprises: a step of making a test piece having sample mixing condition with the structural concrete; a step of checking curing period and compressive strength of the test piece to draw accumulated temperature-compressive strength relation graph; a step of measuring the temperature by each curing period of structure concrete built in a form to calculate the accumulate temperature; and a step of estimating compressive strength of the structural concrete.
    • 目的:提供一种评估结构混凝土抗压强度的方法,有效管理施工过程,提高混凝土质量的可靠性。 构成:评价结构混凝土的抗压强度的方法,其特征在于,包括以下步骤:将结构混凝土的样品混合条件制成试样; 检查试件的固化时间和抗压强度以绘制累积的温度 - 压缩强度关系图的步骤; 测量结构混凝土每个固化周期的温度的步骤,以形式计算累积温度; 以及估计结构混凝土抗压强度的步骤。