Feasibility of electrochemical chloride extraction from structural reinforced concrete using a sprayed conductive graphite powder-cement paste as anode

被引：54

作者：

Canon, A. ^{[1
]}

Garces, P. ^{[1
]}

Climent, M. A. ^{[1
]}

Carmona, J. ^{[1
]}

Zornoza, E. ^{[1
]}

机构：

[1] Univ Alicante, Dept Civil Engn, E-03080 Alicante, Spain

来源：

CORROSION SCIENCE | 2013年 / 77卷

关键词：

Steel reinforced concrete; Galvanostatic; Pitting corrosion; ACID-SOLUBLE CHLORIDE; DIFFUSION-COEFFICIENTS; MECHANICAL-PROPERTIES; CATHODIC PROTECTION; CARBON; CORROSION; REMOVAL; MORTAR; STEEL; EFFICIENCY;

D O I：

10.1016/j.corsci.2013.07.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article summarizes research on the application of a conductive cement paste as an anode in the now classical technique of electrochemical extraction of chlorides applied to a concrete structural element by spraying the paste on the surface of a concrete structural element, a pillar. Sprayed conductive cement paste, by adding graphite powder, is particularly useful to treat sizable vertical surfaces such are structural supports. Outcomes indicate that this kind of anode not only provides electrochemical chloride removal with similar efficiency, but also is able to retain moisture even without the use of a continuous dampening system. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：128 / 134

页数：7

共 29 条

[1]

Alcaide JS, 2007, MATER CONSTRUCC, V57, P33

[2]

Andrade C., 1998, REH STRUCT P 2 INT R, P1

[3]

Baeza FJ, 2011, COMPUT CONCRETE, V8, P229

[4] Effectiveness of a conductive cementitious mortar anode for cathodic protection of steel in concrete [J].

Bertolini, L ;

Bolzoni, F ;

Pastore, T ;

Pedeferri, P .

CEMENT AND CONCRETE RESEARCH, 2004, 34 (04) :681-694

[5] Functional properties of cement-matrix composites [J].

Chung, DDL .

JOURNAL OF MATERIALS SCIENCE, 2001, 36 (06) :1315-1324

[6]

CHUNG DDL, 2004, ELECT CONDUCTIVE CEM

[7] Generalization of the possibility of eliminating the filtration step in the determination of acid-soluble chloride content in cement and concrete by potentiometric titration [J].

Climent, MA ;

de Vera, G ;

Viqueira, E ;

López-Atalaya, MM .

CEMENT AND CONCRETE RESEARCH, 2004, 34 (12) :2291-2295

[8] A test method for measuring chloride diffusion coefficients through nonsaturated concrete -: Part I.: The instantaneous plane source diffusion case [J].

Climent, MA ;

de Vera, G ;

López, JF ;

Viqueira, E ;

Andrade, C .

CEMENT AND CONCRETE RESEARCH, 2002, 32 (07) :1113-1123

[9] Analysis of acid-soluble chloride in cement, mortar, and concrete by potentiometric titration without filtration steps [J].

Climent, MA ;

Viqueira, E ;

de Vera, G ;

López-Atalaya, MM .

CEMENT AND CONCRETE RESEARCH, 1999, 29 (06) :893-898

[10]

Climent MA, 2006, ACI MATER J, V103, P243

← 1 2 3 →