-
公开(公告)号：KR102255042B1
公开(公告)日：2021-05-24
申请号：KR1020200145417
申请日：2020-11-03
申请人： 한국건설기술연구원
IPC分类号： C04B28/02 , C04B14/48 , C04B16/04 , C04B20/02 , C04B40/00 , C04B40/04 , C04B40/02 , B28B1/26 , B28B11/24 , B28B1/52 , E01B25/30 , E01B25/24 , C04B103/00
摘要： 본발명은 SAP이도포된보강섬유를함유함으로써, 수축과균열을극도로억제할수 있게되어차량이시속 1,000km 이상의초고속으로안전하게운행할수 있는하이퍼루프(Hyper Loop)를위한아진공(亞眞空) 튜브를구현하는데적합한초고밀도콘크리트조성물과이러한초고밀도콘크리트조성물을제조하는방법, 그리고초고밀도콘크리트조성물을이용하여콘크리트부재를제작하는방법과그에의해제작된초고밀도콘크리트부재에관한것이다.
-
-
公开(公告)号：KR1020160014970A
公开(公告)日：2016-02-12
申请号：KR1020140097221
申请日：2014-07-30
申请人： 한국건설기술연구원
CPC分类号： C04B28/28 , C04B28/02 , C04B28/021 , C04B41/45
摘要： 초고성능콘크리트(UHPC)의타설면을개선하도록초고성능콘크리트타설직후유성타입의표면마감제를도포하여표면건조를방지함으로써, 표면부의공극이제거됨에따라콘크리트표면부의강도를향상시키고내구성능을증가시킬수 있고, 또한, 초고성능콘크리트의표면을매끄럽게함으로써고품질의초고성능콘크리트를제조할수 있으며, 초고성능콘크리트의경화메커니즘에따라수화반응으로수분증발을막음으로써신뢰할수 있는초고성능콘크리트의강도를확보할수 있는, 유성타입의표면마감제를이용하여콘크리트표면의건조를방지하는초고성능콘크리트의제조방법이제공된다.
摘要翻译： 提供一种制造超高性能混凝土（UHPC）的方法，其通过在浇注UHPC之后立即施加油性表面处理材料来改善浇注混凝土的表面来防止表面干燥，并且改善混凝土表面的机械强度 相对于去除表面孔，同时增强耐久性。 此外，提供了一种制造UHPC的方法，其可以通过平滑UHPC的表面来制造高品质的UHPC，并且通过相对于UHPC的硬化机理阻止水分蒸发而获得UHPC的可靠的机械强度，同时 使用油性表面处理材料防止混凝土的表面干燥。 制造UHPC的方法包括以下步骤：a）制备与UHPC的单位含水量相关的水（W）和通过混合水泥和硅灰形成的粘结材料（B）; b）混合W和B以具有小于或等于0.3的水结合物比（W / B）; c）通过混合高性能减水剂制备混合水; d）选择性地制备聚集体，同时排除粗骨料; e）用钢结合材料，细骨料和混合水制备和混合钢纤维，并将UHPC浇注成铸件; e）浇注UHPC后立即涂油基表面处理材料; 和g）固化UHPC。
-
公开(公告)号：KR1020130040407A
公开(公告)日：2013-04-24
申请号：KR1020110105146
申请日：2011-10-14
申请人： 한국건설기술연구원
CPC分类号： E04G21/246 , C04B40/0263 , H05B3/34 , H05B2203/005 , H05B2203/007 , H05B2203/014
摘要： PURPOSE: An assembling type electrical heat radiating sheet for curing cold water concrete and a cold water concrete curing method using the same are provided to improve quality by preventing a solidity decline. CONSTITUTION: A heating wire(120) is mounted in a waterproofing sheet(110). An attaching and detaching device(130) is formed at the outer circumference of the waterproofing sheet. At least one conducting joint(140) is comprised at the outer circumference of a heating unit. The attaching and detaching device is formed with velcro. The velcro is formed at the outer circumference of the waterproofing sheet.
摘要翻译： 目的：提供一种用于固化冷水混凝土的组装式电热辐射片和使用其的冷水混凝土固化方法，以通过防止坚固性下降来提高质量。 构成：将加热线（120）安装在防水片（110）中。 在防水片的外周形成安装和拆卸装置（130）。 至少一个导电接头（140）包括在加热单元的外周。 安装和拆卸装置由尼龙搭扣构成。 尼龙搭扣形成在防水卷材的外周。
-
公开(公告)号：KR1020120066137A
公开(公告)日：2012-06-22
申请号：KR1020100127337
申请日：2010-12-14
申请人： 한국건설기술연구원
CPC分类号： E01C9/08 , E01C9/086 , E01D19/12 , E01D19/125
摘要： PURPOSE: A concrete bottom plate having fixed ends and absorber pads at support ends and a manufacturing method thereof are provided to improve work efficiency by performing the loading and unloading works of the concrete bottom plates without an additional crane. CONSTITUTION: A manufacturing method of a concrete bottom plate having fixed ends and absorber pads at support ends is as follows. Absorber pads(20) are arranged on the bottom of a form for molding the bottom of a concrete bottom plate(1). The surfaces of the absorber pads have concave grooves. The concave grooves are filled with concrete. The absorber pads are integrally formed on the bottom surface of the concrete bottom plate. Fixed ends(10) for fixing the movement of the concrete bottom plate are integrally formed on the bottom surface of the concrete bottom plate.
摘要翻译： 目的：提供一种具有固定端和在支撑端处的吸收垫的混凝土底板及其制造方法，以通过在没有附加起重机的情况下执行混凝土底板的装载和卸载工作来提高工作效率。 构成：在支撑端部具有固定端部和吸收垫的混凝土底板的制造方法如下。 吸收垫（20）布置在用于模制混凝土底板（1）的底部的模板的底部上。 吸收垫的表面具有凹槽。 凹槽填充混凝土。 吸收垫一体形成在混凝土底板的底面上。 用于固定混凝土底板的运动的固定端（10）一体地形成在混凝土底板的底面上。
-
公开(公告)号：KR1020120060439A
公开(公告)日：2012-06-12
申请号：KR1020100121948
申请日：2010-12-02
申请人： 한국건설기술연구원
CPC分类号： C04B14/06 , C04B16/06 , C04B28/02 , C04B2103/302 , C04B2201/50
摘要： PURPOSE: A manufacturing method of ultra high performance fiber-reinforced cement composite and ultra high performance fiber-reinforced cement composite are provided to reduce viscosity of cement complex and mixing time and to increase application property by using fine silica powder as substitute for cement. CONSTITUTION: Ultra high performance fiber-reinforced cement composite is composed of the mortar and combined water. The mortar includes 10-30 parts by weight of silica micro-powder which contains zirconium having specific surface area of 80,000-120, 000cm^2/g based on 100.0 parts by weight of cement. The mortar additionally includes 100-130 parts by weight of sand having particle size of less than 5mm and 10-30 parts by weight of filler based on 100.0 parts by weight of cement. A ratio of the combined water to binding material which is composed of silica micro-powder containing cement and zirconium is 0.22 or less.
摘要翻译： 目的：提供超高性能纤维增强水泥复合材料和超高性能纤维增强水泥复合材料的制造方法，以降低水泥复合材料的粘度和混合时间，并通过使用细二氧化硅粉替代水泥来提高应用性能。 规定：超高性能纤维增强水泥复合材料由砂浆和混合水组成。 砂浆包括10-30重量份的二氧化硅微粉，其含有基于100.0重量份水泥的比表面积为80,000-120,000cm 2 / g的锆。 砂浆还包括100-130重量份的颗粒尺寸小于5mm的砂和基于100.0重量份水泥的10-30重量份填料。 由含有水泥和锆的二氧化硅微粉末组成的水与粘结材料的比例为0.22以下。
-
公开(公告)号：KR1020120055119A
公开(公告)日：2012-05-31
申请号：KR1020100116645
申请日：2010-11-23
申请人： 한국건설기술연구원
摘要： PURPOSE: An ultra-high fiber-reinforced concrete and a manufacturing method thereof are provided to prevent break down between cement paste and aggregate or fiber, thereby enhancing strength and toughness economically. CONSTITUTION: An ultra-high fiber-reinforced concrete comprises 10-30 parts by weight of silicon dioxide powder having a fineness of 2,500-4,000cm^2/g compare to 100.0 parts by weight of cement. The ultra-high performance fiber reinforced concrete comprises mortar including 10-30 parts by weight of reactive powder and 100-130 parts by weight of aggregates based on 100.0 parts by weight of cement. Water is mixed in order to make a ratio of the binding material of the mortar to be less than 0.25. The fiber is a steel fiber having a length of 12-30mm and a diameter 0.2-0.5mm. The steel fiber is mixed 1-5 volume % based on total volume.
摘要翻译： 目的：提供超高纤维增强混凝土及其制造方法，以防止水泥浆与骨料或纤维之间的分解，从而经济地提高强度和韧性。 构成：超高纤维增强混凝土包含10-30重量份的二氧化硅粉末，其细度为2,500-4,000cm 2 / g，相对于100.0重量份的水泥。 超高性能纤维增强混凝土包括基于100.0重量份水泥的包含10-30重量份反应性粉末和100-130重量份聚集体的砂浆。 混合水以使砂浆的粘结材料的比例小于0.25。 纤维是长度为12-30mm，直径为0.2-0.5mm的钢纤维。 钢纤维基于总体积混合1-5体积％。
-
-
公开(公告)号：KR1020110093395A
公开(公告)日：2011-08-18
申请号：KR1020100013423
申请日：2010-02-12
CPC分类号： C04B28/08 , C04B14/02 , C04B20/0096 , C04B40/0032 , C04B2103/10 , C04B2103/302 , C04B24/10 , C04B24/18 , C04B24/223
摘要： PURPOSE: Cementless concrete using blast slag and a method for manufacturing the same are provided to adequately control the mobility and a time for a coagulating process by coating a water-reducing agent mixed with sugar to the blast slag and adding an activator. CONSTITUTION: Blast slag, fine aggregate, and a water reducing agent mixed with sugar are mixed in a mixer. An activator, coarse aggregate, and water are additionally introduced into the mixer and are mixed. The water reducing agent mixed with super is composed of the combination of sugar and at least one of a melamine-based material or a lignin-based material. The content of the water reducing agent mixed with sugar is 1.5 to 4.5 parts by weight, based on 100 parts by weight of the blast slag. The activator includes at least one of sodium hydroxide or sodium silicate.
摘要翻译： 目的：提供使用鼓风炉渣的无水泥混凝土及其制造方法，以通过将与糖混合的减水剂涂布在高炉渣中并加入活化剂来充分控制凝结过程的流动性和时间。 构成：将混合有高炉渣，细骨料和与糖混合的减水剂混合在混合器中。 将活化剂，粗骨料和水另外引入混合器中并混合。 与超级混合的减水剂由糖和三聚氰胺类材料或木质素类材料中的至少一种组合构成。 与糖混合的减水剂的含量相对于100重量份的炉渣为1.5〜4.5重量份。 活化剂包括氢氧化钠或硅酸钠中的至少一种。
-
公开(公告)号：KR1020110067341A
公开(公告)日：2011-06-22
申请号：KR1020090123902
申请日：2009-12-14
申请人： 한국건설기술연구원
CPC分类号： C04B28/08 , C04B5/00 , C04B14/02 , C04B22/062
摘要： PURPOSE: A non-sintering binder containing blast furnace slag, and a high early strengthening cement-free mortar composition using thereof are provided to easily control the required workability and compressive strength of the binder. CONSTITUTION: A non-sintering binder containing blast furnace slag includes the blast furnace slag and an alkali activation reagent in a weight ratio of 60~80:40~20. The alkali activation reagent is a sodium hydroxide solution, or a mixture of the sodium hydroxide solution and sodium silicate. A high early strengthening cement-free mortar composition contains fine aggregate, water, and the non-sintering binder.
摘要翻译： 目的：提供一种含有高炉矿渣的非烧结粘合剂，以及使用它的高的早期强化无水砂浆组合物，以便容易地控制粘合剂所需的加工性和抗压强度。 构成：含有高炉渣的非烧结粘合剂包括高炉渣和碱活化剂，重量比为60〜80：40〜20。 碱活化剂是氢氧化钠溶液，或氢氧化钠溶液与硅酸钠的混合物。 早期强化的高强度无水砂浆组合物含有细骨料，水和非烧结粘合剂。
-
-
-
-
-
-
-
-
-
搜索结果
119 条记录 (耗时 0.023 秒)
