Steel corrosion behaviour in carbonated alkali-activated slag concrete

被引：131
|
作者：
Aperador, W. [2 ]
Mejia de Gutierrez, R. [2 ]
Bastidas, D. M. [1 ]
机构：
[1] CSIC, CENIM Natl Ctr Met Res, Madrid 28040, Spain
[2] Univ Valle, Composite Mat Grp, Cali, Colombia
来源：
CORROSION SCIENCE | 2009年 / 51卷 / 09期
关键词：
Steel reinforced concrete; Alkali-activated cement; EIS; Mossbauer spectroscopy; Carbonation; FLY-ASH; RESISTANCE; STABILITY; MORTARS;
D O I：
10.1016/j.corsci.2009.05.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Steel bars embedded in an alkali-activated slag (AAS) concrete were exposed (after curing for 28 days) to an accelerated carbonation test (3% CO2, 65% relative humidity (RH), and 25 degrees C temperature) and a laboratory environment (0.03% CO2, 65% RH, and 25 degrees C). Ordinary Portland cement (OPC) was also tested for comparative purposes and exposed to identical experimental conditions. The corrosion behaviour of uncarbonated and carbonated AAS and OPC concretes was tested for different times, performing corrosion potential, linear polarization resistance, and electrochemical impedance spectroscopy measurements. Corrosion products were analysed using the Mossbauer technique. The main corrosion products found were magnetite (Fe3O4), wustite (FeO), and goethite (alpha-FeOOH). (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2027 / 2033
页数：7
相关论文
共 50 条
  • [21] Electrochemical behaviour of a novel alloy steel in alkali-activated slag mortars
    Shi, Jinjie
    Ming, Jing
    Sun, Wei
    CEMENT & CONCRETE COMPOSITES, 2018, 92 : 110 - 124
  • [22] Investigations on Alkali-Activated Slag/Fly Ash Concrete with steel slag coarse aggregate for pavement structures
    Palankar, Nitendra
    Shankar, A. U. Ravi
    Mithun, B. M.
    INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING, 2017, 18 (06) : 500 - 512
  • [23] Assessment of the Corrosion of Steel Embedded in an Alkali-Activated Hybrid Concrete Exposed to Chlorides
    Valencia-Saavedra, William
    Maria Aguirre-Guerrero, Ana
    Mejia de Gutierrez, Ruby
    MOLECULES, 2022, 27 (16):
  • [24] Sulfate attack on alkali-activated slag concrete
    Bakharev, T
    Sanjayan, JG
    Cheng, YB
    CEMENT AND CONCRETE RESEARCH, 2002, 32 (02) : 211 - 216
  • [25] Influence of seawater on alkali-activated slag concrete
    Jun, Yubin
    Kim, Jae Hong
    Han, Seong Ho
    Kim, Taewan
    MATERIALS AND STRUCTURES, 2021, 54 (03)
  • [26] Influence of slag composition on the stability of steel in alkali-activated cementitious materials
    Criado, Maria
    Bernal, Susan A.
    Garcia-Trinanes, Pablo
    Provis, John L.
    JOURNAL OF MATERIALS SCIENCE, 2018, 53 (07) : 5016 - 5035
  • [27] Study on improvement of carbonation resistance of alkali-activated slag concrete
    He, Juan
    Gao, Qie
    Wu, Yonghua
    He, Junhong
    Pu, Xiaolin
    CONSTRUCTION AND BUILDING MATERIALS, 2018, 176 : 60 - 67
  • [28] Development of drying shrinkage model for alkali-activated slag concrete
    Ou, Zhihua
    Feng, Ruiping
    Li, Fangtao
    Liu, Guang
    Li, Ning
    CONSTRUCTION AND BUILDING MATERIALS, 2022, 323
  • [29] Alkali-Activated Stainless Steel Slag as a Cementitious Material in the Manufacture of Self-Compacting Concrete
    Rosales, Julia
    Agrela, Francisco
    Diaz-Lopez, Jose Luis
    Cabrera, Manuel
    MATERIALS, 2021, 14 (14)
  • [30] Behaviour of the waste steel fibre reinforced alkali-activated slag mortars exposed to high temperatures
    Celikten, Serhat
    Canbaz, Mehmet
    PAMUKKALE UNIVERSITY JOURNAL OF ENGINEERING SCIENCES-PAMUKKALE UNIVERSITESI MUHENDISLIK BILIMLERI DERGISI, 2020, 26 (06): : 1110 - 1116
12345