公开(公告)号：US07160433B2

公开(公告)日：2007-01-09

申请号：US10490349

申请日：2002-09-20

Applicant: John E. Bennett

Inventor： John E. Bennett

IPC: C23F13/02

CPC classification number: C23F13/02 ,  C23F2201/02

Abstract: The cathodic protection system of a concrete structure (22) uses sacrificial anodes such as zinc, aluminum and alloys thereof embedded in mortar. A humectant is employed to impart high ionic conductivity to the mortar in which the anode is encapsulated. Lithium nitrate and lithium bromide and combinations thereof are preferred as the humectant. The anode (10) is surrounded by a compressive, conductive matrix (12) incorporating a void volume between 15% and 50% to accommodate the sacrificial corrosion products of the anode. A void space of at least 5% of the total volume of the anode (12) may be provided opposite to the active face of the anode. Synthetic fibers such as polypropylene, polyethylene, cellulose, nylon and fiberglass have been found to be useful for forming the matrix. A tie wire is used to electrically connect the anode to the reinforcing bar.

Abstract translation: 混凝土结构（22）的阴极保护系统使用嵌入砂浆中的牺牲阳极，例如锌，铝及其合金。 使用保湿剂来赋予阳离子被包封的砂浆高的离子电导率。 作为保湿剂，优选硝酸锂和溴化锂及其组合。 阳极（10）由包含15％至50％之间的空隙体积的压缩导电基体（12）包围，以适应阳极的牺牲腐蚀产物。 阳极（12）的总体积的至少5％的空隙可以与阳极的活性面相对设置。 已经发现合成纤维如聚丙烯，聚乙烯，纤维素，尼龙和玻璃纤维可用于形成基质。 使用连接线将阳极电连接到钢筋。

公开(公告)号：US06881306B2

公开(公告)日：2005-04-19

申请号：US10098267

申请日：2002-03-15

Applicant: Ulrich Schneck ,  Thomas Winker ,  Hagen Grünzig

Inventor： Ulrich Schneck ,  Thomas Winker ,  Hagen Grünzig

IPC: E04G23/02 ,  C04B41/45 ,  C04B41/53 ,  C04B41/61 ,  C04B41/72 ,  C23F13/00

CPC classification number: C04B41/009 ,  C04B41/4566 ,  C04B41/5376 ,  C04B41/61 ,  C04B41/72 ,  C23F2201/02 ,  C04B28/02 ,  C04B32/02

Abstract: Re-usable, energy-efficient apparatus for the restoration of corrosion-damaged reinforced concrete and a method for controlling the same. The apparatus includes a combination electrode device in a sandwich construction that includes a dimensionally stable electrode, a reusable electrolyte reservoir, an ion exchanger element, a reference electrode, a power-switching device for anodic regulation, and a measuring system for determining the capacity of the ion exchanger element to take up ions. Use of this combination electrode device prevents the formation of active chlorine during extraction of chlorine from reinforced concrete.

Abstract translation: 用于恢复腐蚀损坏的钢筋混凝土的可重复使用的节能装置及其控制方法。 该装置包括夹层结构中的组合电极装置，其包括尺寸稳定的电极，可重复使用的电解质储存器，离子交换器元件，参考电极，用于阳极调节的功率开关装置，以及用于确定 离子交换元件吸收离子。 使用这种组合电极装置防止在从钢筋混凝土中提取氯时形成活性氯。

公开(公告)号：US06855199B1

公开(公告)日：2005-02-15

申请号：US09890610

申请日：2000-02-03

Applicant: Franz Pruckner

Inventor： Franz Pruckner

IPC: C23F13/02 ,  C04B12/04

CPC classification number: C23F13/02 ,  C23F2201/02

Abstract: A method is described for the electrochemical protection of reinforcement in concrete in harsh environments, for instance in contact with, or in close proximity to, seawater. On concrete, a composition comprising graphite dispersed in a curable mineralic binder in the form of water glass or another water-soluble inorganic silicate, a dispersion agent, optionally together with conventional additives is applied. The application is performed by spraying or brushing. An impregnation is optionally performed, either concurrent with the application of the composition or thereafter. If necessary a post treatment is performed. Further, the use of the composition for electromechanical protection or reinforcement in concrete in connection with, for instance, quay constructions, bridges, bridge piers and similar constructions is described.

Abstract translation: 描述了一种用于在恶劣环境中，例如与海水接触或接近海水的混凝土中的钢筋的电化学保护的方法。 在具体实施方案中，应用包含分散在水玻璃或其它水溶性无机硅酸盐形式的可固化矿物粘合剂中的石墨，任选地与常规添加剂一起使用的分散剂的组合物。 应用程序通过喷涂或刷涂进行。 任选地进行浸渍，或者与施用组合物或之后同时进行。 如果需要，进行后处理。 此外，描述了与例如码头结构，桥梁，桥墩和类似结构相结合的混凝土中的机电保护或增强用组合物的用途。

公开(公告)号：US20040118702A1

公开(公告)日：2004-06-24

申请号：US10324111

申请日：2002-12-20

Inventor： David Whitmore

IPC: C23F013/00

CPC classification number: C23F13/16 ,  C23F2201/02

Abstract: Cathodic protection of an existing concrete structure, including a steel member at least partly buried, such as steel rebar, in the concrete structure, is provided by embedding anodes into a fresh concrete layer applied over an excavated patch and/or as a covering overlay. The anodes are embedded at spaced positions or as an array in the layer and connected to the rebar. A corrosion inhibitor is added into the fresh concrete at least at the interface and more preferably in admixture with the fresh concrete which acts to reduce the flow of ionic current to the steel or between the anode member and the steel in the fresh covering material without significantly increasing the resistivity of the fresh covering material and without inhibiting the ionic current between the anode member and the fresh covering material. In this way the current to the steel in the existing concrete is maximized to maximize the cathodic protection to the existing steel which is the primary target.

Abstract translation: 通过将阳极嵌入施加在挖掘的贴片和/或覆盖层上的新混凝土层中来提供在现有混凝土结构中的阴极保护，包括在混凝土结构中至少部分埋设的钢构件（例如钢筋）。 阳极嵌入在层间的间隔位置或阵列上，并与钢筋连接。 至少在界面处将新的混凝土中的腐蚀抑制剂加入到新混凝土中，更优选与新鲜的混凝土混合，这些混凝土的作用是减少离子电流向新鲜的覆盖材料中的钢或阳极构件和钢之间的流动，而不会明显 增加新鲜覆盖材料的电阻率，并且不会抑制阳极构件和新鲜覆盖材料之间的离子电流。 以这种方式，现有混凝土中的钢的电流最大化，以使作为主要目标的现有钢的阴极保护最大化。

公开(公告)号：US20040051332A1

公开(公告)日：2004-03-18

申请号：US10401148

申请日：2003-03-28

Applicant: APPLIED SEMICONDUCTOR, INC.

Inventor： David B. Dowling

IPC: B05D005/12 ,  H01L029/12

CPC classification number: C09D5/08 ,  C23F13/00 ,  C23F13/04 ,  C23F2201/02 ,  G01N17/02 ,  Y10T428/12528

Abstract: A semiconductor system is provided that uses semiconductive organic polymers, electronics and semiconductor technology to provide a wide array of semiconductor components and a system of preventing corrosion of a surface of a metal structure in contact with a corrosive environment involving: (a) a semiconductive organic polymer coating in conductive contact with at least part of the surface; and (b) an electronic filter for filtering corrosive noise and a method of preventing corrosion using the system.

Abstract translation: 提供半导体系统，其使用半导体有机聚合物，电子和半导体技术来提供广泛的半导体组件阵列和防止与腐蚀性环境接触的金属结构表面的腐蚀的系统，所述腐蚀环境包括：（a）半导体有机 聚合物涂层与表面的至少一部分导电接触; 和（b）用于过滤腐蚀性噪声的电子过滤器以及使用该系统防止腐蚀的方法。

公开(公告)号：US06627065B1

公开(公告)日：2003-09-30

申请号：US09977531

申请日：2001-10-15

Applicant: Louis G. MacDowell ,  Joseph J. Curran

Inventor： Louis G. MacDowell ,  Joseph J. Curran

IPC: C23F1300

CPC classification number: E04C5/015 ,  C23F13/02 ,  C23F2201/02

Abstract: Coating compositions and methods of their use are described herein for the reduction of corrosion in imbedded metal structures. The coatings are applied as liquids to an external surface of a substrate in which the metal structures are imbedded. The coatings are subsequently allowed to dry. The liquid applied coatings provide galvanic protection to the imbedded metal structures. Continued protection can be maintained with periodic reapplication of the coating compositions, as necessary, to maintain electrical continuity. Because the coatings may be applied using methods similar to standard paints, and because the coatings are applied to external surfaces of the substrates in which the metal structures are imbedded, the corresponding corrosion protection may be easily maintained. The coating compositions are particularly useful in the protection of metal-reinforced concrete.

Abstract translation: 本文描述了其使用的涂料组合物和方法，用于降低嵌入的金属结构中的腐蚀。 将涂层作为液体施加到其中嵌入金属结构的基底的外表面。 随后使涂层干燥。 液体涂覆的涂层为嵌入的金属结构提供电流保护。 如果需要，可以定期重新涂覆涂料组合物来维持持续的保护，以保持电连续性。 因为可以使用类似于标准涂料的方法涂覆涂层，并且因为将涂层施加到嵌入金属结构的基材的外表面上，所以可以容易地保持相应的腐蚀保护。 涂料组合物特别可用于保护金属钢筋混凝土。

公开(公告)号：US20030075457A1

公开(公告)日：2003-04-24

申请号：US10182377

申请日：2002-10-02

Inventor： Nicholas Robert Buenfeld ,  Gareth Kevin Glass ,  Bharti Reddy ,  Robert Franklyn Viles

IPC: C23F013/00

CPC classification number: C04B28/02 ,  C04B20/1066 ,  C04B41/009 ,  C04B41/4564 ,  C04B41/60 ,  C04B2111/26 ,  C23F2201/02 ,  E04C5/015 ,  C04B20/1062 ,  C04B32/02 ,  C04B40/0204 ,  C04B22/064

Abstract: The invention provides a reinforced concrete having improved corrosion resistance in which the content of voids in the concrete at the surface of the steel reinforcement is below 0.8%, preferably below 0.5%, more preferably below 0.2% by area of steel and in which there is a layer of solid alkali, preferably at least one micron in thickness on the steel surface. The reinforced concrete preferably has a chloride threshold level of at least 0.5% preferably at least 0.8% by weight of the cement. The invention also provides a process for reducing corrosion of steel reinforcement in concrete which comprises forming a reinforced concrete in which the voids at the steel surface are below 0.5% by volume and in which there is a layer of solid alkali on the steel surface the layer being at least 1 micron in thickness and covering at least 20% of the steel surface.

Abstract translation: 本发明提供一种具有改善的耐腐蚀性的钢筋混凝土，其中钢筋表面的混凝土中的空隙含量低于钢的0.8％，优选低于0.5％，更优选低于0.2％，其中存在 一层固体碱，优选至少一微米厚的钢表面。 钢筋混凝土的氯化物阈值水平优选为水泥重量的至少0.5％，优选至少为0.8％。 本发明还提供一种降低混凝土中钢筋腐蚀的方法，其中包括形成钢筋混凝土，其中钢表面的空隙低于0.5体积％，并且在钢表面上有一层固体碱层 厚度至少为1微米，并覆盖钢表面的至少20％。

公开(公告)号：US06387244B1

公开(公告)日：2002-05-14

申请号：US09761387

申请日：2001-01-16

Applicant: Efim Ya. Lyublinski

Inventor： Efim Ya. Lyublinski

IPC: C23F1300

CPC classification number: C23F13/04 ,  C23F2201/02 ,  E04C5/015

Abstract: A steel-reinforced structure supplied with an aqueous solution of an inhibitor for the strucutre, is further protected against deterioration when an impressed cathodic current is applied; preferably the structure is continuously bathed in the inhibitor solution; flow of the first impressed current is maintained until flow is relatively constant at a level at least one-half the level at which the first impressed current was initiated. The concentration of ions is sensed by measurement of the current flow while maintaining a chosen voltage. The inhibitor solution may be used in conjunction with an electroosmotic current to drive ions into the concrete and towards the steel; this may be done prior to applying the cathodic impressed current, or concurrently therewith by providing secondary electrodes. Program controller means in the power station switches from one mode of delivery to another when current usage, measured by current density, is deemd to have become uneconomical.

Abstract translation: 提供了用于结构的抑制剂的水溶液的钢筋结构进一步被保护以防止施加阴影电流时的劣化; 优选地，结构连续地浸泡在抑制剂溶液中; 第一外加电流的流动被维持，直到流动相对恒定为起始第一外加电流的水平的至少一半的水平。 通过测量电流来检测离子的浓度，同时保持所选择的电压。 抑制剂溶液可以与电渗电流结合使用以将离子驱入混凝土并朝向钢; 这可以在施加阴极外加电流之前进行，或者通过提供次级电极同时进行。 当电流密度测量的当前使用被认为变得不经济时，电站中的程序控制器装置从一种传送模式切换到另一种模式。

公开(公告)号：US06383364B1

公开(公告)日：2002-05-07

申请号：US09529001

申请日：2000-04-06

Applicant: Per Austnes

Inventor： Per Austnes

IPC: C23F1300

CPC classification number: C23F13/16 ,  C04B41/009 ,  C04B41/4566 ,  C04B41/5376 ,  C04B41/61 ,  C04B41/72 ,  C23F2201/02 ,  C04B28/02 ,  C04B32/02

Abstract: There is described a method of cathodic protection, electrochemical chloride extraction and realkalisation in reinforced concrete or similar materials, and also reinforcement and crack prevention in concrete (1), comprising the impressing of a direct voltage between the reinforcement in the concrete (1) and a conductive device which is brought into contact with the surface of the concrete (1), and wherein the crack preventing effect is obtained by embedding the device in fresh concrete. The method is characterised in that as conductive device/current distributors there is used a mat (3) of optionally coated, conductive carbon fibers produced by blowing, pressing, weaving or knitting so that the fibers lie in almost every direction, and wherein the fibers are of different thickness, wherein the mat further comprises electric conductors (4) in the form of bands or wires of conductive material which are placed over or under the mat (3) or are incorporated therein.

Abstract translation: 描述了在钢筋混凝土或类似材料中阴极保护，电化学氯化物提取和再碱化的方法，以及混凝土中的加强和防裂（1），其包括在混凝土（1）和钢筋混凝土 与混凝土（1）的表面接触的导电装置，其中通过将装置嵌入新混凝土中获得防裂效果。 该方法的特征在于，作为导电装置/电流分布器，使用通过吹制，压制，编织或针织制成的任选涂布的导电碳纤维的垫（3），使得纤维几乎位于每个方向，并且其中纤维 具有不同的厚度，其中所述垫还包括导电材料的带状或导线形式的电导体（4），所述电导体（4）放置在所述垫子（3）上或下方，或者被结合在其中。

公开(公告)号：US06358397B1

公开(公告)日：2002-03-19

申请号：US09663958

申请日：2000-09-19

Applicant: Efim Ya. Lyublinski

Inventor： Efim Ya. Lyublinski

IPC: C23F1300

CPC classification number: G01N17/02 ,  C23F13/04 ,  C23F2201/02

Abstract: A concrete structure is reinforced with steel rebars coated with essentially pure aluminum in the range from about 0.25 mm to 2 mm thick upon which aluminum coating is an aluminum oxide layer in the range from 0.1 &mgr;m to 100 &mgr;m thick. This layer of aluminum oxide and/or hydrated aluminum oxide is referred to as a combined aluminum oxide layer, and it is in direct contact with the concrete. The Al-coated rebars may be protected in a galvanic circuit using magnesium or other metal baser than aluminum as a sacrificial anode, but more preferably the rebars are cathodically protected with an impressed cathodic current the current density of which is derived by sensing the corrosion potential at a sensing member of essentially pure aluminum embedded in the concrete, or in concrete outside a zone immediately surrounding the rebars, measuring the corrosion potential at the sensing member relative to a reference electrode until the value stabilizes at a measured stable potential; then providing an impressed current at a potential in the range from about 150 mV to less than 300 mV lower than the corrosion potential of the sensing member.