CORROSIÓN DEL ACERO INOXIDABLE 304 COMO REFUERZO EN CONCRETO EXPUESTO A CLORUROS Y SULFATOS

Published on Jan 1, 2007
· DOI :10.22517/23447214.5073
Miguel Baltazar2
Estimated H-index: 2
,
Facundo Almeraya1
Estimated H-index: 1
+ 3 AuthorsArturo Ortiz1
Estimated H-index: 1
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Abstract
It’s evaluated the corrosion of 304 stainless steel and steel 1018, embedded in elaborated specimens of concrete on the basis of norms ASTM C470-87 and C192-81. Were elaborated concrete of ration a/c, 0,45 and 0.65 . The specimens were exposed 66 weeks in two aggressive means, solutions to 3,5% of NaCl and 3,5% of Na2SO4. The evaluation was made by the technique of Resistance to the Polarization (Rp), measurement of the corrosion potential (Ecorr) in agreement norm ASTM C-876-91. The results far beyond demonstrate a resistance to the corrosion of steel 304 in both means the one steel 1018.
References3
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#1Gu Ping (National Research Council)H-Index: 1
#2S. Elliott (National Research Council)H-Index: 1
Last. B. Arsenault (National Research Council)H-Index: 2
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Abstract The results of an investigation of the performance of 2-year-old stainless steel reinforced concrete specimens which were previously placed in an aggressive aqueous solution containing chlorides are presented. This study consisted of corrosion rate testing of reinforced concrete samples with normal reinforcing steel and stainless steel rebars by means of the a.c. impedance spectroscopy. The equivalent circuit simulation analysis method was applied in the data interpretation. The perform...
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#1David Trejo (University of California, Berkeley)H-Index: 20
#2Paulo J.M. Monteiro (University of California, Berkeley)H-Index: 64
Last. Xueyao Wang (University of California, Berkeley)H-Index: 1
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This paper presents preliminary results on the mechanical and corrosion properties of a Fe-2Si-0.1C-0.1Nb dual-phase ferrite martensite (DFM) steel embedded in concrete. Previous research has shown that these steels can attain higher tensile strengths, higher energy absorption, more ductility, better fatigue toughness, weldability, and better corrosion resistance than conventional reinforcement (re-bar) steels. This investigation shows that Fe-2Si-0.1C-0.1 Nb DFM steels with approximately 18% ma...
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#1S. C. Kranc (USF: University of South Florida)H-Index: 14
#2Alberto A. Sagüés (USF: University of South Florida)H-Index: 26
The electrochemical impedance response of reinforced concrete is complicated by the presence of extended corrosion macrocells and the relatively high resistance of the electrolytic medium. Guard ring electrodes are used in an attempt to confine the excitation current so that the reinforcing steel area sampled by the measurement is well defined. In order to better understand the application of guard electrodes, a simplified system has been analyzed by numerical modeling to address the relative di...
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#1Marco Alfaro (University of La Serena)H-Index: 3
#2Ignacio Alfaro (University of La Serena)H-Index: 2
Integrar conocimientos es la tarea fundamental de la educacion quimica y es en este contexto en el cual la investigacion en inhibicion de corrosion de acero nos brinda la oportunidad de integrar los conocimientos de cinetica electroquimica con quimica organica, quimica analitica instrumental y electronica via la construccion de un potenciostato de bajo costo y la utilizacion de este en el estudio de las propiedades anticorrosivas del sulfato de atropina frente a acero al carbono en solucion. Ya ...
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#1Pérez González (Universidad Autónoma de San Luis Potosí)
The results from an experimental program that explores the use of industrial waste materials (specifically sheets of stainless steel that result of the currency coinage) as reinforcement for concrete slabs are presented. Twenty three full size beam–deck specimens were built in order to measure resistance, ductility and failure modes; the experimental analysis in models with reinforcement in different quantities shows that in some cases, under certain quantities and location, it is possible to re...
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