Effect of de-icing salts on the corrosion performance of galvanized steel in sulphate contaminated soil

Padilla, Victor; Ghods, Pouria; Alfantazi, Akram

doi:10.1016/j.conbuildmat.2012.09.077

Cited by 39 publications

(8 citation statements)

References 47 publications

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“…The presence of sulfide, even in traces, is undesirable because the SRB can accelerate steel corrosion rate. However, depending on the sulfide product generated, it can decrease corrosion rates under specific conditions 3,5 . According to Steinrath Index, the soil received the classification "low aggressive" and the total index was "-3".…”

Section: Resultsmentioning

confidence: 99%

“…The steel structure is immersed in a molten zinc bath, that reacts with the steel producing a tightly bonded coating, isolating the metal surface from the environment and promoting cathodic protection 1,2 . In case of coating damage, zinc oxidation products, which are adherent and insoluble, are deposited on the surface, keeping it protected 3 . Galvanizing has been increasingly applied because of zinc protective characteristic that, associated to the steel mechanical strength, results in a versatile and economic product.…”

Section: Introductionmentioning

confidence: 99%

“…Usually, those structures are partially or completely buried and their corrosion resistance depends on the aggressiveness of soil. The resistance to corrosion processes of buried galvanized structures is related to chemical, physicochemical and microbiologic properties of the soil 3,4 . The evaluation of soil corrosiveness is important to analyze corrosion processes of underground structures and to define protective methods, such as cathodic protection or protective coatings.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion of Galvanized Steel Under Different Soil Moisture Contents

et al. 2015

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Galvanized steel has been widely applied in different applications and the industry significantly increased its production in recent years. Some galvanized structures can be completely or partially buried, such as transmission tower footings. The corrosion of these metallic structures is related to the soil chemical and physicochemical properties, which define the aggressiveness of the environment. To assess the effect of the soil moisture on galvanized steel corrosion, a comparative study was carried out. Carbon steel coupons, with or without galvanization, were buried in clay soil collected from an industrial region in the northeast of Brazil. The chemical, physicochemical and microbiological characteristics of the soil were determined. The thickness of the galvanized coating was measured by scanning electron microscopy (SEM). Corrosion tests were conducted in different soil moisture conditions using the following techniques: potentiodynamic polarization curves and gravimetric tests. The results showed the influence of soil moisture on corrosion rates. The electroplating decreased corrosion rates, especially when the coupons were exposed to low moisture soil.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Corrosion of Galvanized Steel Under Different Soil Moisture Contents

et al. 2015

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“…William and co-workers found that changes in the ionic strength of the solution may affect the iron corrosion and the dye removal rate by ZVI [30]. In the corrosion field, it is clear that both sulfate and chloride could increase the corrosion rate of steel or iron [31][32][33]. Furthermore, the temperature could accelerate all processes involved in corrosion: electrochemical, transport, chemical, etc.…”

Section: Effect Of Operating Temperature On the Electrolytementioning

confidence: 99%

Influence of Temperature on the Removal of Extremely High Concentration p‐Nitrophenol Simulated Wastewater by Fe/Cu/H₂O Systems

Lai¹,

Yuan

Chen³

et al. 2016

CLEAN Soil Air Water

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In this study, the effect of the operating temperature on the removal of high p‐nitrophenol (PNP) concentrations by Fe/Cu/H2O systems has been investigated thoroughly. The results suggest that only a higher operating temperature (>40°C) could significantly improve the removal efficiency of high PNP concentrations (e.g. 10 000 mg/L) by Fe/Cu/H2O systems. Meanwhile, a lower PNP concentration (e.g. 500 mg/L) could be completely removed by Fe/Cu/H2O systems only at 40°C. Furthermore, the interaction between the operating temperature (10–85°C) and other key operating parameters including theoretical Cu mass loading (0–0.89 g Cu/g Fe), Fe/Cu dosage (5–35 g), stirring speed (0–400 rpm), electrolyte (0–50 mmol/L NaCl or Na2SO4), and initial pH (3.–12) was investigated, respectively. In particular, the elevating temperature could decrease theoretical Cu mass loading, Fe/Cu dosage, stirring speed and electrolyte, and abroad the range of initial pH, which could reduce the operating cost of Fe/Cu/H2O systems if the waste‐heating vapor could be used to elevate the operating temperature. According to the results of UV‐Vis spectra, for total organic carbon and chemical oxygen demand, it is clear that the elevating temperature could facilitate mineralization of PNP in an aqueous solution by Fe/Cu/H2O systems. As a result, the operating temperature was a main factor for the removal of pollutants by Fe/Cu/H2O systems.

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“…Yan [2] found that the corrosivity of the red clay soil greatly relieves after Fe oxides are removed from the soil. Victor Padilla [3] studied the effect of de-icing salts on the corrosion performance of galvanized steel in sulphate contaminated soil, and found that the presence of sulphate in the soil significantly increased the corrosion rates. However, such studies about the corrosion behavior of copper-clad steel are less.…”

Section: Introductionmentioning

confidence: 99%

Study on Corrosion Behavior of Copper-Clad Steel for Grounding Grids

Zhang¹,

Zhou²,

Chen³

et al. 2017

Proceedings of the Advances in Materials, Machinery, Electrical Engineering (AMMEE 2017)

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Grounding grid is an important device guaranteeing the operation of the people, electrical equipments and power grid. However, the corrosion of grounding grid affects the security of the power grid system, what's worse, it makes huge economic losses and serious social impact. We found from the research that the copper-clad steel for grounding grids has any advantages to better economic gain and good corrosion resistance at the same time. In this paper, using electrochemical impedance spectroscopy (EIS), polarization curve measurement, scanning electron microscopy (SEM) and so on, the corrosion behavior of copper-clad steel for grounding grids in the coastal soil have been researched. The results indicated that an increase of the soil salinity decrease the corrosion resistance of copper-clad steel, and the latter stage is less than the mid-term stage. The resistance increase and then tend to be stable with the increase of immersion time. The corrosion resistance of copper-clad steel in the non-salinized and light salinized soil is better.

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Effect of de-icing salts on the corrosion performance of galvanized steel in sulphate contaminated soil

Cited by 39 publications

References 47 publications

Corrosion of Galvanized Steel Under Different Soil Moisture Contents

Corrosion of Galvanized Steel Under Different Soil Moisture Contents

Influence of Temperature on the Removal of Extremely High Concentration p‐Nitrophenol Simulated Wastewater by Fe/Cu/H₂O Systems

Study on Corrosion Behavior of Copper-Clad Steel for Grounding Grids

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Effect of de-icing salts on the corrosion performance of galvanized steel in sulphate contaminated soil

Cited by 39 publications

References 47 publications

Corrosion of Galvanized Steel Under Different Soil Moisture Contents

Corrosion of Galvanized Steel Under Different Soil Moisture Contents

Influence of Temperature on the Removal of Extremely High Concentration p‐Nitrophenol Simulated Wastewater by Fe/Cu/H2O Systems

Study on Corrosion Behavior of Copper-Clad Steel for Grounding Grids

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Influence of Temperature on the Removal of Extremely High Concentration p‐Nitrophenol Simulated Wastewater by Fe/Cu/H₂O Systems