公开(公告)号：WO1998016670A1

公开(公告)日：1998-04-23

申请号：PCT/US1997018848

申请日：1997-10-10

Applicant: BENNETT, Jack, E. ,  CLEAR, Kenneth, C.

IPC: C23F13/00

CPC classification number: C23F13/06 ,  C23F13/12 ,  C23F2201/02 ,  C23F2213/22

Abstract: Humectants are applied to cathodic protection systems which utilize a conductive paint anode or thermally-sprayed zinc or zinc alloy anodes applied to the surface of reinforced concrete structures. The humectants are deliquescent or hygroscopic organic or inorganic salts, hydrophilic polymers or colloids, or organic liquid desiccants. The humectants are positioned at or near the interface between the anodes and the concrete in a free flowing form and increase the moisture content at the interface. This increases the ability of the anode to deliver cathodic protection current to steel embedded in the concrete. The humectants may be applied to the concrete surface prior to application of the anode, or may be applied subsequent to installation of the anode. In an embodiment of the invention, the humectant is a lithium salt. The initiation of current delivery in the system results in the injection of lithium ions into the concrete which mitigates what is known as an alkali-silica reaction in the concrete.

Abstract translation: 保湿剂应用于阴极保护系统，其利用导电涂料阳极或喷涂锌或锌合金阳极施加到钢筋混凝土结构的表面。 湿润剂是潮解性或吸湿性的有机或无机盐，亲水性聚合物或胶体，或有机液体干燥剂。 保湿剂以自由流动的形式定位在阳极和混凝土之间的界面处或附近，并增加界面处的含水量。 这增加了阳极将阴极保护电流输送到嵌入混凝土中的钢的能力。 在施加阳极之前，保湿剂可以施加到混凝土表面，或者可以在安装阳极之后施加。 在本发明的一个实施方案中，保湿剂是锂盐。 在系统中的电流输送的引发导致将锂离子注入混凝土中，这减轻了混凝土中所谓的碱 - 二氧化硅反应。