公开(公告)号：WO2007126715A3

公开(公告)日：2008-07-31

申请号：PCT/US2007007317

申请日：2007-03-24

Applicant: BENNETT JOHN E

Inventor： BENNETT JOHN E

IPC: C23F13/00 ,  C23F13/02 ,  C23F13/06 ,  C23F13/08 ,  C23F13/12 ,  C23F13/20

CPC classification number: C04B28/02 ,  C04B20/1066 ,  C04B2111/265 ,  C23F13/02 ,  C23F2201/02 ,  C04B32/02 ,  C04B14/104 ,  C04B14/20

Abstract: The galvanic cathodic protection of reinforced concrete structures such as bridges, buildings, parking structures, piers, and wharves, is enhanced by the use of an inert water absorbent solid. The absorbent solid and chemicals are mixed with a cementitious binder to form an activating matrix. This matrix surrounds a sacrificial metal anode such as zinc, or aluminum or their alloys. The metal anode is electrically connected to the ferrous reinforcing member by a metallic conductor. The water absorbent solid may be a clay such as bentonite or a hydrated mineral such as vermiculite. It is preferably in the form of discrete particles dispersed throughout the binder. The inclusion of the absorbent solid in the activating matrix serves to increase the protective current, thereby reducing corrosion of the reinforcing components of the concrete structure.

Abstract translation: 钢筋混凝土结构如桥梁，建筑物，停车场，码头和码头的电气阴极保护通过使用惰性吸水固体得到增强。 将吸收固体和化学品与水泥粘合剂混合以形成活化基质。 该矩阵围绕牺牲金属阳极，例如锌或铝或其合金。 金属阳极通过金属导体与铁质加强构件电连接。 吸水性固体可以是粘土如膨润土或水合矿物如蛭石。 其优选为分散在整个粘合剂中的离散颗粒的形式。 将吸收性固体包含在活化基质中用于增加保护电流，从而减少混凝土结构的增强部件的腐蚀。

公开(公告)号：WO2008118589A1

公开(公告)日：2008-10-02

申请号：PCT/US2008/054839

申请日：2008-02-25

Applicant: BENNETT, John, E.

Inventor： BENNETT, John, E.

IPC: C23F13/00

CPC classification number: C23F13/10 ,  C04B26/02 ,  C04B28/005 ,  C04B28/02 ,  C04B2111/00525 ,  C04B2111/00853 ,  C04B2111/265 ,  C23F13/02 ,  C23F2201/02 ,  E04C5/015 ,  E04C5/017 ,  C04B14/204 ,  C04B22/085 ,  C04B22/128

Abstract: The galvanic cathodic protection of steel embedded in concrete structures is enhanced by the utilization of a flexible composite anode assembly containing a sacrificial anode member. The anode member is at least partially covered by a matrix comprising an ionically-conductive material. The conductive material includes at least one electrochemical activating agent such as a mixture of lithium bromide and lithium nitrate and a compressible water-retaining mineral such as a phyllosilicate mineral. The presence of this mineral in the matrix increases the current delivered by the anode, thereby resulting in a greater level of cathodic protection, and a longer effective service life of the anode. Exfoliataed vermiculite is a preferred phyllosilicate mineral and is present in an amount of between about 2% and about 15% by weight, based on the total weight of the matrix.

Abstract translation: 通过利用包含牺牲阳极部件的柔性复合阳极组件，增强了嵌入在混凝土结构中的钢的电镀阴极保护。 阳极构件至少部分被包含离子导电材料的基体覆盖。 导电材料包括至少一种电化学活化剂，例如溴化锂和硝酸锂的混合物以及可压缩的保水矿物如页硅酸盐矿物。 这种矿物在基体中的存在增加了阳极传递的电流，从而导致更高水平的阴极保护和更长的阳极使用寿命。 去角质蛭石是优选的页硅酸盐矿物，并且基于基质的总重量以约2％至约15％重量的量存在。

公开(公告)号：WO2005121760A1

公开(公告)日：2005-12-22

申请号：PCT/US2005/018768

申请日：2005-05-27

Applicant: BENNETT, John, E. ,  GRIFFIS, Dale, W., II ,  BECHKOWIAK, Russell, J.

Inventor： BENNETT, John, E. ,  GRIFFIS, Dale, W., II ,  BECHKOWIAK, Russell, J.

IPC: G01N27/00

CPC classification number: C23F13/06 ,  C23F13/02 ,  C23F13/10 ,  C23F2201/00 ,  C23F2201/02

Abstract: The deterioration of reinforced concrete structures by galvanic corrosion is a well understood problem, particularly as it affects roads, bridges, parking garages and buildings that use reinforcing steel in their construction. Galvanic cathodic protection is typically provided for such reinforced concrete structures using embedded sacrificial anodes, such as zinc, aluminum, and alloys thereof. Disclosed herein is an anode assembly (10) for cathodic protection of a reinforced concrete structure. The assembly comprises at least one sacrificial anode member (12). The anode member is covered with an ionically-conductive covering material (14) into which is bound an electrochemical activating agent at least partly covering the sacrificial anode member. One side (26) of the ionically-conductive covering material is configured to conform closely and securely to a steel reinforcing bar. The conforming side has a non-conductive barrier (16) as an integral part of the covering material. An electrical connection is established between the anode member and a ferrous reinforcing bar (20) using conductive wires (18).

Abstract translation: 钢筋混凝土结构因电镀腐蚀而变质，是一个很好理解的问题，特别是影响道路，桥梁，停车库和建筑物中使用钢筋的建筑物。 通常为使用嵌入的牺牲阳极（例如锌，铝及其合金）的这种钢筋混凝土结构提供电镀阴极保护。 本文公开了一种用于钢筋混凝土结构的阴极保护的阳极组件（10）。 组件包括至少一个牺牲阳极部件（12）。 阳极构件被离子导电覆盖材料（14）覆盖，其中结合有至少部分覆盖牺牲阳极构件的电化学活化剂。 离子导电覆盖材料的一侧（26）构造成紧密且牢固地附着在钢筋上。 配合侧具有作为覆盖材料的组成部分的非导电屏障（16）。 使用导线（18）在阳极构件和铁质钢筋（20）之间建立电连接。

公开(公告)号：WO2005080637A1

公开(公告)日：2005-09-01

申请号：PCT/US2005/004403

申请日：2005-02-14

Applicant: BENNETT, John, E.

Inventor： BENNETT, John, E. ,  NIKSA, Andrew, J.

IPC: C23F13/00

CPC classification number: C23F13/10 ,  C23F2201/02

Abstract: The performance of sacrificial anodes such as zinc, aluminum and their alloys in providing galvanic cathodic protection of steel embedded in concrete is improved by clamping the anode to the steel. Spring action clamps, "C" clamps and band clamps are described. The electrical contact between the anode and the steel can be further improved by tack welding, or the use of one or more knife edges, points or protrusions into a portion of the clamp that contacts the steel. An electrochemical activating agent, such as lithium nitrate and/or lithium bromide, acts as a humectant and, as such, enhances the performance of the sacrificial properties of the anodes.

Abstract translation: 通过将阳极固定在钢上，提高了锌，铝及其合金等牺牲阳极在混凝土中嵌入钢中阴极保护的性能。 描述了弹簧动作夹具，“C”夹和带夹。 阳极和钢之间的电接触可以通过定位焊接进一步改进，或者使用一个或多个刀刃，点或突起进入与钢接触的夹具的一部分。 电化学活化剂，例如硝酸锂和/或溴化锂，用作保湿剂，因此增强了阳极的牺牲性能的性能。

公开(公告)号：WO2003027356A1

公开(公告)日：2003-04-03

申请号：PCT/US2002/030030

申请日：2002-09-20

Applicant: J.E. BENNETT CONSULTANTS, INC. ,  BENNETT, John, E.

Inventor： BENNETT, John, E.

IPC: C23F13/00

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：WO2007126715A2

公开(公告)日：2007-11-08

申请号：PCT/US2007/007317

申请日：2007-03-24

Applicant: BENNETT, John, E.

Inventor： BENNETT, John, E.

IPC: C12M3/00

CPC classification number: C04B28/02 ,  C04B20/1066 ,  C04B2111/265 ,  C23F13/02 ,  C23F2201/02 ,  C04B32/02 ,  C04B14/104 ,  C04B14/20

Abstract: The galvanic cathodic protection of reinforced concrete structures such as bridges, buildings, parking structures, piers, and wharves, is enhanced by the use of an inert water absorbent solid. The absorbent solid and chemicals are mixed with a cementitious binder to form an activating matrix. This matrix surrounds a sacrificial metal anode such as zinc, or aluminum or their alloys. The metal anode is electrically connected to the ferrous reinforcing member by a metallic conductor. The water absorbent solid may be a clay such as bentonite or a hydrated mineral such as vermiculite. It is preferably in the form of discrete particles dispersed throughout the binder. The inclusion of the absorbent solid in the activating matrix serves to increase the protective current, thereby reducing corrosion of the reinforcing components of the concrete structure.

Abstract translation: 钢筋混凝土结构如桥梁，建筑物，停车场，码头和码头的电气阴极保护通过使用惰性吸水固体得到增强。 将吸收固体和化学品与水泥粘合剂混合以形成活化基质。 该矩阵围绕牺牲金属阳极，例如锌或铝或其合金。 金属阳极通过金属导体与铁质加强构件电连接。 吸水性固体可以是粘土如膨润土或水合矿物如蛭石。 其优选为分散在整个粘合剂中的离散颗粒的形式。 将吸收性固体包含在活化基质中用于增加保护电流，从而减少混凝土结构的增强部件的腐蚀。

公开(公告)号：WO2005121760B1

公开(公告)日：2006-03-16

申请号：PCT/US2005018768

申请日：2005-05-27

Applicant: BENNETT JOHN E ,  GRIFFIS DALE W II ,  BECHKOWIAK RUSSELL J

Inventor： BENNETT JOHN E ,  GRIFFIS DALE W II ,  BECHKOWIAK RUSSELL J

IPC: C23F13/00 ,  C23F13/06 ,  G01N27/00

CPC classification number: C23F13/06 ,  C23F13/02 ,  C23F13/10 ,  C23F2201/00 ,  C23F2201/02

Abstract: The deterioration of reinforced concrete structures by galvanic corrosion is a well understood problem, particularly as it affects roads, bridges, parking garages and buildings that use reinforcing steel in their construction. Galvanic cathodic protection is typically provided for such reinforced concrete structures using embedded sacrificial anodes, such as zinc, aluminum, and alloys thereof. Disclosed herein is an anode assembly (10) for cathodic protection of a reinforced concrete structure. The assembly comprises at least one sacrificial anode member (12). The anode member is covered with an ionically-conductive covering material (14) into which is bound an electrochemical activating agent at least partly covering the sacrificial anode member. One side (26) of the ionically-conductive covering material is configured to conform closely and securely to a steel reinforcing bar. The conforming side has a non-conductive barrier (16) as an integral part of the covering material. An electrical connection is established between the anode member and a ferrous reinforcing bar (20) using conductive wires (18).

Abstract translation: 钢筋混凝土结构因电镀腐蚀而变质，是一个很好理解的问题，特别是影响道路，桥梁，停车库和建筑物中使用钢筋的建筑物。 通常为使用嵌入的牺牲阳极（例如锌，铝及其合金）的这种钢筋混凝土结构提供电镀阴极保护。 本文公开了一种用于钢筋混凝土结构的阴极保护的阳极组件（10）。 组件包括至少一个牺牲阳极部件（12）。 阳极构件被离子导电覆盖材料（14）覆盖，其中结合有至少部分覆盖牺牲阳极构件的电化学活化剂。 离子导电覆盖材料的一侧（26）构造成紧密且牢固地附着在钢筋上。 配合侧具有作为覆盖材料的组成部分的非导电屏障（16）。 使用导线（18）在阳极构件和铁质钢筋（20）之间建立电连接。