Study on the Carbonation Behavior of Cement Mortar by Electrochemical Impedance Spectroscopy

被引：69

作者：

Dong, Biqin ^{[1
]}

Qiu, Qiwen ^{[1
]}

Xiang, Jiaqi ^{[1
]}

Huang, Canjie ^{[1
]}

Xing, Feng ^{[1
]}

Han, Ningxu ^{[1
]}

机构：

[1] Shenzhen Univ, Sch Civil Engn, Guangdong Prov Key Lab Durabil Marine Civil Engn, Key Lab Durabil Civil Engn Shenzhen, Shenzhen 518060, Guangdong, Peoples R China

来源：

MATERIALS | 2014年 / 7卷 / 01期

基金：

中国国家自然科学基金;

关键词：

electrochemical impedance spectroscopy; mortar; electrochemical model; parameter; carbonation depth; prediction; MICROSTRUCTURAL CHARACTERIZATION; CORROSION BEHAVIOR; PORE STRUCTURE; HIGH-VOLUME; CONCRETE; MODEL; STEEL; PREDICTION; DIOXIDE;

D O I：

10.3390/ma7010218

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new electrochemical model has been carefully established to explain the carbonation behavior of cement mortar, and the model has been validated by the experimental results. In fact, it is shown by this study that the electrochemical impedance behavior of mortars varies in the process of carbonation. With the cement/sand ratio reduced, the carbonation rate reveals more remarkable. The carbonation process can be quantitatively accessed by a parameter, which can be obtained by means of the electrochemical impedance spectroscopy (EIS)-based electrochemical model. It has been found that the parameter is a function of carbonation depth and of carbonation time. Thereby, prediction of carbonation depth can be achieved.

引用

页码：218 / 231

页数：14

共 45 条

[21] Curing effects on carbonation of concrete using a phenolphthalein indicator and Fourier-transform infrared spectroscopy [J].

Lo, Y ;

Lee, HM .

BUILDING AND ENVIRONMENT, 2002, 37 (05) :507-514

[22] Carbonation service life modelling of RC structures for concrete with Portland and blended cements [J].

Marques, Pedro Faustino ;

Chastre, Carlos ;

Nunes, Angela .

CEMENT & CONCRETE COMPOSITES, 2013, 37 :171-184

[23] THE AC RESPONSE OF HARDENED CEMENT PASTE [J].

MCCARTER, WJ ;

BROUSSEAU, R .

CEMENT AND CONCRETE RESEARCH, 1990, 20 (06) :891-900

[24] IMPEDANCE MEASUREMENTS ON CEMENT PASTE [J].

MCCARTER, WJ ;

GARVIN, S ;

BOUZID, N .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1988, 7 (10) :1056-1057

[25] Dynamics of the internal reaction layer arising during carbonation of concrete [J].

Meier, S. A. ;

Peter, M. A. ;

Muntean, A. ;

Boehm, M. .

CHEMICAL ENGINEERING SCIENCE, 2007, 62 (04) :1125-1137

[26] Consequences of carbonation on microstructure and drying shrinkage of a mortar with cellulose ether [J].

Metalssi, Othman Omikrine ;

Ait-Mokhtar, Abdelkarim ;

Turcry, Philippe ;

Ruot, Bertrand .

CONSTRUCTION AND BUILDING MATERIALS, 2012, 34 :218-225

[27] Corrosion behaviour of rebars in fly ash mortar exposed to carbon dioxide and chlorides [J].

Montemor, MF ;

Cunha, MP ;

Ferreira, MG ;

Simoes, AM .

CEMENT & CONCRETE COMPOSITES, 2002, 24 (01) :45-53

[28] Investigation of the technology of historic mortars [J].

Moropoulou, Antonia ;

Bakolas, Asterios ;

Bisbikou, Katerina .

JOURNAL OF CULTURAL HERITAGE, 2000, 1 (01) :45-58

[29] A moving-boundary problem for concrete carbonation: Global existence and uniqueness of weak solutions [J].

Muntean, Adrian ;

Boehm, Michael .

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2009, 350 (01) :234-251

[30] Effects of carbonation on pore structure and diffusional properties of hydrated cement pastes [J].

Ngala, VT ;

Page, CL .

CEMENT AND CONCRETE RESEARCH, 1997, 27 (07) :995-1007

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