A review of the archaeological analogue approaches to predict the long-term corrosion behaviour of carbon steel overpack and reinforced concrete structures in the French disposal systems

Neff, Delphine; Saheb, Mandana; Monnier, Judith; Perrin, Stéphane; Descostes, Michaël; L’Hostis, Valérie; Crusset, Didier; Millard, Alain; Dillmann, Philippe

doi:10.1016/j.jnucmat.2010.05.003

Cited by 46 publications

(34 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Artefacts were considered as corrosion analogues, in order to reveal the corrosion mechanisms occurring in that environment. [8] The final aim of these approaches is actually to perform a reliable phenomenological modelling of the corrosion processes occurring over very long periods (i.e. several centuries).…”

Section: Introductionmentioning

confidence: 99%

Raman study of a deuterated iron hydroxycarbonate to assess long‐term corrosion mechanisms in anoxic soils

Saheb

Neff

Bellot‐Gurlet

et al. 2010

J Raman Spectroscopy

View full text Add to dashboard Cite

International audienceIn several contexts such as cultural heritage, oil and gas or nuclear waste disposal, the long-term corrosion mechanisms of iron in anoxic soils are studied. For this purpose, corrosion layers formed on ferrous archaeological artefacts from the site of Glinet (16th century, Normandy, France) were characterised. The main phases identified are siderite (FeCO3), chukanovite (iron hydroxycarbonate: Fe2(OH)2CO3 and magnetite (Fe3O4). In order to provide reliable Raman references for further studies on carbonated systems, the iron hydroxycarbonate (chukanovite) was synthesised on iron discs. The corrosion mechanisms were investigated by re-corroding the archaeological samples in a deuterated solution. Raman characterisation on cross sections inside the layer revealed the presence of deuterated chukanovite, allowing the deuterium tracing of the spreading of the corrosion. A set of chukanovite samples was synthesised with various D/H ratios. Using these reference data, the proportion of deuterated chukanovite in re-corroded artefacts was evaluated, and the corrosion rate was estimated as less than 1.6 µm/year

show abstract

Section: Introductionmentioning

confidence: 99%

Raman study of a deuterated iron hydroxycarbonate to assess long‐term corrosion mechanisms in anoxic soils

Saheb

Neff

Bellot‐Gurlet

et al. 2010

J Raman Spectroscopy

View full text Add to dashboard Cite

show abstract

“…As a matter of fact, as confirmed by some authors [3,26,27] , anions and oxygen transport through the pores of dense product layer (DPL) and provoke the oxidation of metal at the metal/DPL interface. Thus, the corrosion products of rebar are closely related with the wet-dry cycle, pH, aeration of surrounding environment [26] , and bond between steel and concrete [28] , etc.…”

Section: Discussionmentioning

confidence: 89%

“…Thus, the corrosion products of rebar are closely related with the wet-dry cycle, pH, aeration of surrounding environment [26] , and bond between steel and concrete [28] , etc. In the present study, the localized corrosion zone of rebar is likely to relate with the voids at the steel/concrete interface.…”

Section: Discussionmentioning

confidence: 99%

Tensile strength and oxide analysis of carbon steel in concrete exposed in atmospheric environment for 53 years

Feng

Zuo

et al. 2015

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

View full text Add to dashboard Cite

The tensile strength of a corroded rebar in a 53-year-old concrete structure was studied. The microstructure of the metallic substrate, the fracture surface, and the corrosion product layers were investigated. Metallographic observation results showed that the carbon steel was constituted of ferrite and some pearlite. The tensile test results indicated that the corroded rebar presented low strength and elongation. In addition, the fracture surface of the rebar in the tensile test displayed dimple fracture behavior. The Raman spectroscopy results indicated that corrosion products at the general corrosion zone were obviously different from those at the localized corrosion zone. The rust layer at the general corrosion zone was composed of goethite (α-FeOOH), magnetite (Fe 3 O 4 ), and hematite (α-Fe 2 O 3 ), while that of the pitting zone was made of feroxyhyte (δ-FeOOH), goethite (α-FeOOH), and hematite (α-Fe 2 O 3 ). However, the general tendencies that the corrosion products were constituted of a mix of oxides and hydroxides, the oxides mainly existed in the internal part and the hydroxides more presented in the external layer were observed.

show abstract

“…The corrosion of carbon steel in the conditions expected in the geological repository has been studied through long-term corrosion tests both in surface laboratories and in the Meuse/HauteMarne underground laboratory in Bure, France [11][12][13]. The characterization of archaeological artefacts, such as nails buried for several centuries in an anoxic carbonated environment on a 16 th -century steelmaking site, was also a means of supporting the experimental results on a larger time scale [14][15][16][17].…”

Section: Alteration In Presence Of Environment Materialsmentioning

confidence: 99%

Key Phenomena Governing HLW Glass Behavior in the French Deep Geological Disposal

et al. 2015

Self Cite

View full text Add to dashboard Cite

According to the Planning Act of 28th June 2006, Andra is in charge of ensuring the sustainable management of all radioactive waste generated in France, especially the high-level and long-lived vitrified waste produced from spent fuel recycling.Since 2006, all the studies and research related to the components of HLW cells have been incorporated into a broader R&D program which aims at characterizing and modeling (i) the glass matrix dissolution, (ii) the corrosion of the overpack and the lining, and (iii) the claystone evolution in the near field, considering all the interactions between these surrounding materials. This program, coordinated by Andra, has involved up to eighteen laboratories.After closure of disposal cells and overpack failure, glass alteration is expected to begin in partially saturated conditions due to hydrogen production resulting from carbon steel corrosion in anoxic conditions. Therefore, the glass should at least partially be hydrated by water vapor during thousands of years until complete saturation. A part of the studies aimed to determine the glass behavior in such conditions, the influence of the main parameters (temperature, relative humidity) and consequences of vapor hydration on subsequent radionuclides release by water leaching.In addition, the major part of the work focused on the influence of the environment on glass alteration. The effect of clay pore water on glass alteration rates (initial rate, rate drop and residual rate) was determined and particularly that of pH and magnesium. The nature of steel corrosion products and their interactions with glass alteration were also investigated. All these studies relied on experiments in surface laboratories, in Andra's underground laboratory, together with natural or archeological analogs and modeling studies.

show abstract

A review of the archaeological analogue approaches to predict the long-term corrosion behaviour of carbon steel overpack and reinforced concrete structures in the French disposal systems

Cited by 46 publications

References 37 publications

Raman study of a deuterated iron hydroxycarbonate to assess long‐term corrosion mechanisms in anoxic soils

Raman study of a deuterated iron hydroxycarbonate to assess long‐term corrosion mechanisms in anoxic soils

Tensile strength and oxide analysis of carbon steel in concrete exposed in atmospheric environment for 53 years

Key Phenomena Governing HLW Glass Behavior in the French Deep Geological Disposal

Contact Info

Product

Resources

About