폴리아미드 섬유를 포함하는 초고강도 내화 콘크리트
    2.
    发明公开
    폴리아미드 섬유를 포함하는 초고강도 내화 콘크리트 有权
    超高强度混凝土与聚酰胺纤维

    公开(公告)号:KR1020110080584A

    公开(公告)日:2011-07-13

    申请号:KR1020100000893

    申请日:2010-01-06

    CPC classification number: Y02W30/94

    Abstract: PURPOSE: A high strength fire resistant concrete containing polyamide fiber is provided to increase the workability of hardening concrete by uniformly dispersing polyamide fiber in the concrete based on a dispersing agent. CONSTITUTION: A high strength fire resistant concrete includes 600-700 kg of cement, 130-180 kg of water, 260-420 kg of admixture, 900-1100 kg of fine aggregate, 350-500 kg of coarse aggregate, and 2.0-3.5 kg of polyamide fiber per unit volume. The design strength of the concrete is between 150 and 200 MPa. The admixture includes 90-140 kg/m^3 of silica fume, 140-200 kg/m^3 of slag fine powder, 30-80 kg/m^3 of anhydrous gypsum. The external surface of the polyamide fiber is coated with a dispersing agent. The dispersing agent includes a poly-atomic alcohol ester lubricant, a nonionic surfactant, and an antistatic agent.

    Abstract translation: 目的:提供含有聚酰胺纤维的高强度耐火混凝土,以通过将聚酰胺纤维均匀分散在基于分散剂的混凝土中来提高硬化混凝土的加工性。 构成:高强度耐火混凝土包括600-700kg水泥,130-180kg水,260-420kg混合料,900-1100kg细骨料,350-500kg粗骨料和2.0-3.5 kg单位体积的聚酰胺纤维。 混凝土的设计强度在150〜200MPa之间。 该混合物包括90-140kg / m 3的硅灰,140-200kg / m 3的矿渣细粉,30-80kg / m 3的无水石膏。 聚酰胺纤维的外表面涂布有分散剂。 分散剂包括多元醇酯润滑剂,非离子表面活性剂和抗静电剂。

    판상-링형 구속시험방법에 의한 콘크리트의 수축균열평가방법
    3.
    发明公开
    판상-링형 구속시험방법에 의한 콘크리트의 수축균열평가방법 有权
    混凝土收缩裂缝性能评估方法

    公开(公告)号:KR1020090109335A

    公开(公告)日:2009-10-20

    申请号:KR1020080034732

    申请日:2008-04-15

    Abstract: PURPOSE: A method for evaluating shrinkage crack of concrete by slat and ring type restrained test is provided to extract necessary data for grasp the crack characteristic. CONSTITUTION: A method for evaluating shrinkage crack of concrete through slat-ring type restrained test comprises: a step of placing outer ring and inner ring to form concentric circle on a plate; a step of constructing concrete between the outer ring and inner ring; a step of inducing surface crack of concrete using drier of high temperature; and a step of measuring restrained shrinkage force and crack generation amount.

    Abstract translation: 目的:提出通过板条和环型约束试验评估混凝土收缩裂缝的方法,以提取必要的数据来掌握裂纹特征。 构成:通过板条型约束试验评价混凝土收缩裂缝的方法包括:将外圈和内圈放置在板上形成同心圆的步骤; 在外圈和内圈之间构造混凝土的步骤; 使用高温干燥器引起混凝土表面裂纹的一个步骤; 以及测量约束收缩力和裂纹产生量的步骤。

    콘크리트 급속재하 인장강도 시험방법
    10.
    发明授权
    콘크리트 급속재하 인장강도 시험방법 有权
    通过快速加载的混凝土强度测试方法

    公开(公告)号:KR101654811B1

    公开(公告)日:2016-09-08

    申请号:KR1020150175867

    申请日:2015-12-10

    Abstract: 본발명은콘크리트정적및 동적재료특성평가용복합시험장치및 이를이용한콘크리트강도시험방법에관한것으로서, 구체적으로는크리프시험, 압축강도시험, 내충격시험, 일반재히휨강도시험, 급속재하휨강도시험, 일반재하인장강도시험, 급속재하인장강도시험을필요에따라하나의시험장치에서시험할수 있도록설계된콘크리트강도복합시험장치및 이를이용한콘크리트강도시험방법에관한것이다.

    Abstract translation: 本发明涉及一种用于评价混凝土静态和动态材料特性的复合试验装置和使用该复合试验装置的混凝土强度试验方法,更具体地涉及一种混凝土强度复合试验装置和使用该试验装置的混凝土强度试验方法,其中 混凝土强度复合试验装置设计用于试验蠕变试验,抗压强度试验,耐冲击试验,一般载荷弯曲强度试验,快速载荷弯曲强度试验,一般载荷拉伸强度试验和快速载荷拉伸试验 强度测试根据需要在一个测试设备中。

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