Corrosion Behavior of Galvanized Steel Embedded in Concrete Exposed to Soil Type MH Contaminated With Chlorides

Baltazar Zamora, Miguel Ángel y Mendoza Rangel, José Manuel y Croche, René y Gaona Tiburcio, Citlalli y López, Luis y Olguín, Francisco y Almeraya Calderón, Facundo (2019) Corrosion Behavior of Galvanized Steel Embedded in Concrete Exposed to Soil Type MH Contaminated With Chlorides. Frontiers in Materials, 6. pp. 1-13. ISSN 2296-8016

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URL o página oficial: https://doi.org/10.3389/fmats.2019.00257

Resumen

The behavior of corrosion in reinforced concrete, buried in a soil type silt of higher plastic (MH), the present study represents the conditions of exposure that can find the foundations of infrastructure such as bridges, buildings, pavements, when in contact with a soil that could contain aggressive agents like chlorides and sulfates. In such concrete specimens a carbon steel bar AISI 1018 and Galvanized Steel was embedded as reinforcement, the mixed concrete was of ratio water/cement (w/c) = 0.45 (compressive strength, f'c = 350 kg/cm2), according to ACI 211.1, using cements Portland Cement Composite [CPC 30R (Type I) and CPC 30R RS (Type V)]. The used electrochemical techniques such as Corrosion Potentials (ASTM C-876-15) and Linear Polarization Resistance. LPR (ASTM-G59). The specimens were buried in a soil type MH contaminated with 0, 1, 2, and 3 wt.% NaCl as aggressive agent by weight of soil, the exposure time was 260 days where, the results show that when the presence of NaCl in the soil was increased to 2 and 3% the levels of corrosion are from high to very high in all concretes, presenting a little better performance the concretes reinforced with galvanized steel and a small benefit could be identified or related to the properties of a denser and less impermeable matrix that presented the concrete mix made with cement CPC 30R RS.

Tipo de elemento:

Article

Palabras claves no controlados:

Corrosión, Hormigón, Acero galvanizado, Suelo Tipo MH, Cloruros

Materias:

CONACYT > Ingeniería y Tecnología
T Tecnología > TA Ingeniería General y Civil

Divisiones:

Ingeniería Mecánica y Eléctrica

Usuario depositante:

Dra Citlalli Gaona

Creadores:

Creador	Email	ORCID
Baltazar Zamora, Miguel Ángel	NO ESPECIFICADO	NO ESPECIFICADO
Mendoza Rangel, José Manuel	NO ESPECIFICADO	NO ESPECIFICADO
Croche, René	NO ESPECIFICADO	NO ESPECIFICADO
Gaona Tiburcio, Citlalli	NO ESPECIFICADO	orcid.org/0000-0001-9072-3090
López, Luis	NO ESPECIFICADO	NO ESPECIFICADO
Olguín, Francisco	NO ESPECIFICADO	NO ESPECIFICADO
Almeraya Calderón, Facundo	NO ESPECIFICADO	orcid.org/0000-0002-3014-2814