公开(公告)号：US08337677B2

公开(公告)日：2012-12-25

申请号：US13213151

申请日：2011-08-19

Applicant: Gareth Glass ,  Nigel Davison ,  Adrian Roberts

Inventor： Gareth Glass ,  Nigel Davison ,  Adrian Roberts

IPC: C23F13/12

CPC classification number: C23F13/02 ,  C23F13/06 ,  C23F2201/02 ,  C23F2213/21

Abstract: The installation and use of embedded sacrificial anodes to protect reinforced concrete may be improved. In one example a cavity [2] is formed in the concrete [3] and a puttylike backfill [4] is placed in the cavity and a compact discrete anode comprising a sacrificial metal element [1] is inserted into the backfill and a space is provided into which the backfill may move when subjected to a pressure arising from the formation of voluminous sacrificial meal corrosion products and a high current is passed from the anode to the steel in the concrete to arrest steel corrosion and activate the anode in the backfill. The space may be provided by venting the backfill to space outside the cavity through an opening [5] or by including a void space within the backfill [6] or a void space within the cavity [7].

Abstract translation: 嵌入牺牲阳极的安装和使用可以改善保护钢筋混凝土。 在一个实例中，在混凝土[3]中形成一个空腔[2]，将一个推杆式回填填料[4]放置在空腔中，将一个包含牺牲金属元件[1]的紧凑型离散阳极插入回填空间， 提供回填可以在受到形成大量牺牲粕腐蚀产物的压力时移动的位置，并且高电流从阳极传递到混凝土中的钢，以阻止钢腐蚀并激活回填中的阳极。 该空间可以通过将回填空气通过开口[5]排出到空腔外部或通过在回填物[6]内包含空隙空间或空腔内的空隙空间来提供空间[7]。

公开(公告)号：US08211289B2

公开(公告)日：2012-07-03

申请号：US12636411

申请日：2009-12-11

Applicant: Gareth Kevin Glass ,  Adrian Charles Roberts ,  Nigel Davison

Inventor： Gareth Kevin Glass ,  Adrian Charles Roberts ,  Nigel Davison

IPC: C23F13/04 ,  C23F13/06 ,  C23F13/20 ,  C23F13/22

CPC classification number: C23F13/06 ,  C23F2201/02 ,  C23F2213/21

Abstract: A method of protecting steel in concrete is disclosed. A voltage between two connections of a power supply is generated such that current can flow between a negative connection and a positive connection. In a first protection step, one of the connections of the power supply is electrically connected to the steel to be cathodically protected and a sacrificial anode is electrically connected in series with the other connection of the power supply such that the voltage generated by the power supply is added to the voltage generated between the sacrificial anode and the steel to produce a voltage greater than the voltage generated between the sacrificial anode and the steel alone. The power supply may be a cell or battery and may be combined with the sacrificial anode to form a single unit. In a second protection step that may follow the first protection step, the voltage generated by the power supply is no longer present and a current flows between the sacrificial anode and the steel to continue protecting and/or passivating the steel. This may be achieved by connecting the sacrificial anode directly to the steel.

Abstract translation: 公开了一种在混凝土中保护钢的方法。 产生电源的两个连接之间的电压，使得电流可以在负连接和正连接之间流动。 在第一保护步骤中，电源的一个连接电连接到要被阴极保护的钢，并且牺牲阳极与电源的另一个连接串联电连接，使得电源产生的电压 被添加到牺牲阳极和钢之间产生的电压，以产生大于牺牲阳极和钢之间产生的电压的电压。 电源可以是电池或电池，并且可以与牺牲阳极组合以形成单个单元。 在可以跟随第一保护步骤的第二保护步骤中，由电源产生的电压不再存在，并且电流在牺牲阳极和钢之间流动以继续保护和/或钝化钢。 这可以通过将牺牲阳极直接连接到钢来实现。

公开(公告)号：US07967971B2

公开(公告)日：2011-06-28

申请号：US12046310

申请日：2008-03-11

Applicant: Nigel Davison ,  Adrian Charles Roberts ,  Gareth Kevin Glass

Inventor： Nigel Davison ,  Adrian Charles Roberts ,  Gareth Kevin Glass

IPC: C23F13/18 ,  C23F13/06

CPC classification number: C23F13/06 ,  C23F2201/02 ,  C23F2213/22

Abstract: Sacrificial anode assemblies have the advantage that they can provide galvanic protection to steel in concrete and do not require long term maintenance of a DC power supply. However sacrificial anode assemblies often loose adhesion to the concrete surface. This invention discloses the use of a sacrificial anode (4) and a backfill (3) and a tape (5) and an adhesive to protect steel (8) in concrete. The backfill is preferably placed in a shallow cavity (1) in the concrete surface (2) and the sacrificial anode is inserted into the backfill. The cavity is covered with a tape that extends over the adjacent concrete surfaces on opposite sides of the sacrificial anode and backfill and the tape is attached to the concrete surface with the adhesive. The tape and the adhesive holds the anode in place and prevents a weathering environment from damaging the backfill.

Abstract translation: 牺牲阳极组件的优点在于它们可以为混凝土中的钢提供电流保护，并且不需要长期维护直流电源。 然而，牺牲阳极组件通常会松动与混凝土表面的粘合。 本发明公开了牺牲阳极（4）和回填（3）和带（5）和粘合剂以保护混凝土中的钢（8）的用途。 回填物优选放置在混凝土表面（2）中的浅空腔（1）中，并且将牺牲阳极插入回填料。 空腔被覆盖着在牺牲阳极和回填物的相对侧上相邻的混凝土表面上延伸的带，并且带用粘合剂附接到混凝土表面。 胶带和粘合剂将阳极保持在适当位置，并防止风化环境损坏回填。

公开(公告)号：US20110031132A1

公开(公告)日：2011-02-10

申请号：US12846124

申请日：2010-07-29

Applicant: Wolfgang SCHWARZ

Inventor： Wolfgang SCHWARZ

IPC: C25B11/04 ,  C03C14/00 ,  C23F13/00 ,  H01B1/22

CPC classification number: H01B3/08 ,  C04B28/006 ,  C04B2111/00215 ,  C04B2111/265 ,  C23F2201/02 ,  Y02P40/165 ,  C04B14/14 ,  C04B22/062 ,  C04B22/124 ,  C04B22/142 ,  C04B24/125 ,  C04B24/2641 ,  C04B24/383 ,  C04B32/02 ,  C04B14/10 ,  C04B24/2676 ,  C04B2103/0086 ,  C04B18/023

Abstract: The invention relates to a hydraulic binder, comprising K, Ca, aluminosilicates, as well as optionally Li, Na, and Mg, wherein the binder comprises the following components: a) a latently hydraulic aluminosilicate glass with a ratio of (CaO+MgO+Al2O3)/SiO2>1 and b) an alkali activator of the empirical formula (I) a(M2O)*x(SiO2)*y(H2O)  (I) wherein M=Li, Na, K, a=0-4, and x=0-5 and y=3-20, wherein the molar ratio of Ca/Si is 0.1. Furthermore, it relates to binder matrices, mortars, concrete adhesives, and metal anodes made of such binder.

Abstract translation: 本发明涉及一种水硬性粘合剂，其包含K，Ca，硅铝酸盐以及任选的Li，Na和Mg，其中粘合剂包括以下组分：a）具有（CaO + MgO + Al2O3）/ SiO2> 1，b）经验式（I）a（M2O）* x（SiO2）* y（H2O）（I）的碱活化剂，其中M = Li，Na，K，a = 0-4 ，x = 0-5和y = 3-20，其中Ca / Si的摩尔比<1，Al / Si的摩尔比<1，M / Si的摩尔比> 0.1。 此外，它涉及粘合剂基质，砂浆，混凝土粘合剂和由这种粘合剂制成的金属阳极。

公开(公告)号：US20100147703A1

公开(公告)日：2010-06-17

申请号：US12636411

申请日：2009-12-11

Applicant: Gareth Kevin GLASS ,  Nigel DAVISON ,  Adrian Charles ROBERTS

Inventor： Gareth Kevin GLASS ,  Nigel DAVISON ,  Adrian Charles ROBERTS

IPC: C23F13/14 ,  C23F13/08 ,  C23F13/02

CPC classification number: C23F13/06 ,  C23F2201/02 ,  C23F2213/21

Abstract: A method of protecting steel in concrete is disclosed. A voltage between two connections of a power supply is generated such that current can flow between a negative connection and a positive connection. In a first protection step, one of the connections of the power supply is electrically connected to the steel to be cathodically protected and a sacrificial anode is electrically connected in series with the other connection of the power supply such that the voltage generated by the power supply is added to the voltage generated between the sacrificial anode and the steel to produce a voltage greater than the voltage generated between the sacrificial anode and the steel alone. The power supply may be a cell or battery and may be combined with the sacrificial anode to form a single unit. In a second protection step that may follow the first protection step, the voltage generated by the power supply is no longer present and a current flows between the sacrificial anode and the steel to continue protecting and/or passivating the steel. This may be achieved by connecting the sacrificial anode directly to the steel.

Abstract translation: 公开了一种在混凝土中保护钢的方法。 产生电源的两个连接之间的电压，使得电流可以在负连接和正连接之间流动。 在第一保护步骤中，电源的一个连接电连接到要被阴极保护的钢，并且牺牲阳极与电源的另一个连接串联电连接，使得电源产生的电压 被添加到牺牲阳极和钢之间产生的电压，以产生大于牺牲阳极和钢之间产生的电压的电压。 电源可以是电池或电池，并且可以与牺牲阳极组合以形成单个单元。 在可以跟随第一保护步骤的第二保护步骤中，由电源产生的电压不再存在，并且电流在牺牲阳极和钢之间流动以继续保护和/或钝化钢。 这可以通过将牺牲阳极直接连接到钢来实现。

公开(公告)号：US20090236764A1

公开(公告)日：2009-09-24

申请号：US12253995

申请日：2008-10-19

Applicant: Gareth Kevin GLASS ,  Nigel DAVISON ,  Adrian Charles ROBERTS

Inventor： Gareth Kevin GLASS ,  Nigel DAVISON ,  Adrian Charles ROBERTS

IPC: B29C73/00

CPC classification number: E04G23/02 ,  C23F2201/02

Abstract: High performance proprietary cementitious concretes or mortars developed for use as patch repair materials for corrosion damaged concrete often have high resistivities that inhibit the performance of sacrificial anodes located within the patch repair areas. A method of repair is disclosed which comprises removing the corrosion damaged concrete to form a cavity to receive a concrete repair material and forming within this cavity a smaller distinct cavity for assembling a sacrificial anode assembly and placing within this second cavity a pliable viscous ionically conductive backfill and a sacrificial anode and an activating agent to form a sacrificial anode assembly and connecting the anode to the steel and covering the anode and the backfill in the second cavity with a repair material to restore the profile of the concrete structure. In this arrangement a high resistivity repair material promotes the flow of protection current to steel in adjacent contaminated concrete that is at risk of corrosion.

Abstract translation: 开发用于腐蚀损坏的混凝土的修补材料的高性能专用水泥混凝土或砂浆通常具有高电阻率，其抑制位于修补区域内的牺牲阳极的性能。 公开了一种修复方法，其包括去除腐蚀损坏的混凝土以形成容纳混凝土修复材料的空腔并且在该空腔内形成用于组装牺牲阳极组件的更小的不同的空腔，并在该第二腔内放置柔韧的粘性离子导电填充物 以及牺牲阳极和活化剂以形成牺牲阳极组件，并将阳极连接到钢上，并用修复材料覆盖第二腔中的阳极和回填，以恢复混凝土结构的轮廓。 在这种布置中，高电阻率修复材料促进了在具有腐蚀危险的相邻污染混凝土中对钢的保护电流的流动。

公开(公告)号：US20090229993A1

公开(公告)日：2009-09-17

申请号：US11908858

申请日：2006-03-14

Applicant: Gareth Glass ,  Adrian Roberts ,  Nigel Davison

Inventor： Gareth Glass ,  Adrian Roberts ,  Nigel Davison

IPC: C23F13/00 ,  C23F13/10 ,  B29C65/00

CPC classification number: C23F13/02 ,  C23F13/06 ,  C23F13/16 ,  C23F2201/02 ,  C23F2213/21 ,  C23F2213/31 ,  E04C5/015

Abstract: A single anode system used in multiple electrochemical treatments to control steel corrosion in concrete comprises a sacrificial metal that is capable of supporting high impressed anode current densities with an impressed current anode connection detail and a porous embedding material containing an electrolyte. Initially current is driven from the sacrificial metal [1] to the steel [10] using a power source [5] converting oxygen and water [14] into hydroxyl ions [15] on the steel and drawing chloride ions [16] into the porous material [2] around the anode such that corroding sites are moved from the steel to the anode restoring steel passivity and activating the anode. Cathodic prevention is then applied. This is preferably sacrificial cathodic prevention that is applied by disconnecting the power source and connecting the activated sacrificial anode directly to the steel.

Abstract translation: 用于多个电化学处理以控制混凝土中的钢腐蚀的单阳极系统包括牺牲金属，其能够利用外加电流阳极连接细节和含有电解质的多孔嵌入材料来支持高的外加的阳极电流密度。 最初，电流从牺牲金属[1]驱动到钢[10]，使用电源[5]将氧和水[14]转化为羟基离子[15]并将氯离子[16]转化为多孔 材料[2]，使得腐蚀部位从钢移动到阳极，恢复钢的钝性并激活阳极。 然后应用阴极预防。 这优选是通过断开电源并将激活的牺牲阳极直接连接到钢来施加的牺牲阴极防止。

公开(公告)号：US20080047843A1

公开(公告)日：2008-02-28

申请号：US11587647

申请日：2005-04-29

Applicant: Gareth Glass ,  Adrian Roberts ,  Nigel Davidson

Inventor： Gareth Glass ,  Adrian Roberts ,  Nigel Davidson

IPC: C23F13/00

CPC classification number: E04C5/015 ,  C23F13/06 ,  C23F13/10 ,  C23F2201/02 ,  C23F2213/21

Abstract: A sacrificial anode assembly for cathodically protecting and/or passivating a metal section, comprising: (a) a cell, which has an anode and a cathode arranged so as to not be in electronic contact with each other but so as to be in ionic contact with each other such that current can flow between the anode and the cathode; (b) a connector attached to the anode of the cell for electrically connecting the anode to the metal section to be cathodically protected; and (c) a sacrificial anode electrically connected in series with the cathode of the cell; wherein the cell is otherwise isolated from the environment such that current can only flow into and out of the cell via the sacrificial anode and the connector. The invention also provides a method of cathodically protecting metal in which such a sacrificial anode assembly is cathodically attached to the metal via the connector of the assembly, and a reinforced concrete structure wherein some or all of the reinforcement is cathodically protected by such a method.

Abstract translation: 一种用于阴极保护和/或钝化金属部分的牺牲阳极组件，包括：（a）电池，其具有布置成不彼此电子接触但被离子接触的阳极和阴极 使得电流可以在阳极和阴极之间流动; （b）附接到电池的阳极的连接器，用于将阳极电连接到金属部分以进行阴极保护; 和（c）与电池的阴极电连接的牺牲阳极; 其中电池另外从环境分离，使得电流仅能够经由牺牲阳极和连接器流入和流出电池。 本发明还提供一种阴极保护金属的方法，其中这种牺牲阳极组件经由组件的连接器阴极连接到金属，以及钢筋混凝土结构，其中部分或全部加强件被这种方法阴极保护。

公开(公告)号：US20070209949A1

公开(公告)日：2007-09-13

申请号：US11370167

申请日：2006-03-08

Applicant: David Whitmore

Inventor： David Whitmore

IPC: C23F13/00

CPC classification number: C23F13/02 ,  C23F13/10 ,  C23F2201/02

Abstract: An anode for use in cathodic protection of steel in concrete is formed from an electrically conductive material such as zinc and an ionically conductive material which is preferably a humectant and/or has a pH greater than 12 to enhance current flow. The materials are intimately intermixed through at least a part of the anode body and compressed into the anode body with an electrical connecting lead formed into a core of the body which is wholly conductive material. Portions of the electrically conductive material are pressed into electrical contact to form a plurality of electrically conductive paths within the anode body. Many of the voids in the body are interconnected to form a plurality of ionically conductive paths through the anode body by causing the humectant to migrate through the voids. The large surface area between the ionically conductive paths and the electrically conductive paths increase significantly the contact surface area of the anode body to increase current flow.

Abstract translation: 用于混凝土中钢的阴极保护的阳极由诸如锌的导电材料和优选为湿润剂和/或具有大于12的pH的离子导电材料形成以增强电流。 材料通过阳极体的至少一部分紧密地混合并且被压入阳极体，其中电连接引线形成为完全导电材料的主体芯体。 导电材料的一部分被压入电接触以在阳极体内形成多个导电路径。 通过使保湿剂迁移通过空隙，身体中的许多空隙被互连以形成通过阳极体的多个离子导电路径。 离子传导路径和导电路径之间的大的表面积显着地增加了阳极体的接触表面积以增大电流。

公开(公告)号：US07226532B2

公开(公告)日：2007-06-05

申请号：US10683108

申请日：2003-10-14

Applicant: David W. Whitmore

Inventor： David W. Whitmore

IPC: C23F13/10

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 reinforcing layer is applied to the anode or adjacent the anode to resist expansion of the anode body tending to cause cracking of the concrete caused by the larger volume of the corrosion products relative to the anode material. Pores are provided in the anode body so as to take up the corrosion products. The reinforcing layer can be provided in the actual anode body as a closed surface surrounding the anode material inside or may be provided in the concrete as a layer on top of the anode in an array form at or near the outer surface of the concrete.

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。 加强层施加到阳极或邻近阳极以抵抗阳极体的膨胀，从而导致相对于阳极材料的较大体积的腐蚀产物引起的混凝土开裂。 在阳极体中设置有孔以吸收腐蚀产物。 增强层可以在实际的阳极体中设置为围绕阳极材料的封闭表面，或者可以在混凝土中作为层叠在阳极的顶部上，以阵列形式设置在混凝土的外表面附近。