Open AccessJournal Article
Steel corrosion in concrete -- how does it occur?
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TLDR
In this article, the authors designed a questionnaire to determine if a predicated threshold for the occurrence of corrosion of a piece of steel is real and whether a threshold exists.Abstract:
THE TESTS DESCRIBED IN THIS PAPER WERE DESIGNED TO: IDENTIFY THE MECHANISM BY WHICH CORROSION OF STEEL IS INITIATED, PROVIDE QUANITATIVE INFORMATION ABOUT THE EFFECTS OF CHLORIDES, AND DETERMINE IF A PREDICTABLE THRESHOLD OF CORROSION EXISTS LABORATORY STUDIES ARE REPORTED ON THE CORROSION OF BARE STEEL RODS IN ENVIRONMENTS SIMULATING POROUS CONCRETE CONTAMINATED WITH CHLORIDES THE INITIATION OF CORROSION IS SHOWN TO REQUIRE FREE OXYGEN AT THE STEEL SURFACE AND A RATIO OF CHLORIDE TO HYDROXYL ION ACTIVITY OF AT LEAST 06 A PROBABILITY MODEL IS USED TO EXPLAIN THE CHLORIDE EFFECT AND TO PREDICT THE THRESHOLD VALUE CAUSING CORROSION /AUTHOR/read more
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Pitting corrosion induced on high-strength high carbon steel wire in high alkaline deaerated chloride electrolyte
TL;DR: In this article , anodic potentiostatic application (APA) was applied to high-strength high carbon steel wire in deaerated electrolyte at pH 13.4 due to different chloride ion (Cl−) concentrations.
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Corrosion of Reinforcing Steel in Sabkha Environment
TL;DR: In this paper, the results of an investigation carried out to evaluate corrosion of reinforcing steel in plain and blended cement mortar specimens placed in a sabkha soil were reported. But the results indicated lower reinforcement corrosion activity on steel in blended cement specimens, particularly in silica fume cement specimens and on plain cement specimens placed both in me field and in simulated-sabkha solution.
Evaluation of Corrosion Protection Systems and Testing Methods for Conventional Reinforcing Steel
TL;DR: In this paper, the performance of several corrosion protection systems for conventional reinforcing steel are evaluated using rapid macrocell tests developed at the University of Kansas, as well as two bench-scale techniques, the Southern Exposure (SE) and cracked beam (CB) tests, that are generally accepted in United States practice.
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Effects of water to binder ratio on the chloride binding behaviour of artificial seawater cement paste blended with metakaolin and silica fume
TL;DR: In this article , the effects of water-to-binder (w/b) ratio and supplementary cementitious materials (SCMs) including silica fume (SF) and metakaolin (MK) on chloride binding of seawater cement paste (SCP) by using a water extraction method.
Initiation et propagation de la corrosion dans un élément de béton armé
TL;DR: In this article, the authors analyzed the phenomenon of corrosion initiation on reinforced mortar specimens and the behavior of several corroded reinforcing bars and found that reducing the water/cement ratio and increasing the C3A content led to a longer corrosion initiation time.