Journal
CEMENT & CONCRETE COMPOSITES
Volume 22, Issue 3, Pages 175-185Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0958-9465(00)00003-2
Keywords
corrosion; reinforcement; fly ash; impedance; EIS; electrochemical techniques
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The corrosion process of steel embedded in concrete with various amounts of fly ash (up to 50% of the total binder) was tested under complete and partial immersion, in sodium chloride solution. The corrosion process was followed by monitoring of open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS). Fly ash addition has led to a raise of concrete resistivity and of the time for corrosion initiation and to a decrease of corrosion rate. (C) 2000 Elsevier Science Ltd. All rights reserved.
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