Open AccessJournal Article
Steel corrosion in concrete -- how does it occur?
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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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Journal ArticleDOI
腐食発生限界塩化物イオン濃度の測定方法とその定量評価に関する研究;腐食発生限界塩化物イオン濃度の測定方法とその定量評価に関する研究;a Study on the Method of Measuring the Chloride Threshold Value of Corrosion and on the Estimation of the Values
Study of the Protective Capacity of Cements Regarding Corrosion of Reinforcements under Joint Action of CO 2 and Chloride Ions
TL;DR: In this paper, experimental results of the evaluation of a study with three types of cement are presented, observing the behavior of reinforcements which were put in samples submitted to accelerated carbonatation tests and accelerated tests under the effect of chlorides.
Experimental and Numerical Study of Macro-Cell Corrosion Between Crossed Steel Bars
TL;DR: In this article, the authors investigated the phenomenon of severe corrosion observed at stirrups or some intersections of steel rebar mesh, which has not been well studied before, and they considered macrocell corrosion between crossed steel bars was the major cause for this phenomenon.