Overview
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Read the articleAUTHORS
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Pierre Gaujé: ARCELOR MITTAL, Global Research and Development, Maizières Process, - Maizières-lès-Metz, France
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François HANROT: ArcelorMittal, European Procurement Organisation – By-Products Sales, Luxembourg
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Marcel BANDOMBELE MOKILI: SUBATECH Laboratory, UMR 6457, Institut Mines-Télécom Atlantique, IN2P3/CNRS, University of Nantes, France
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Mickaël BAILLY: SUBATECH Laboratory, UMR 6457, Institut Mines-Télécom Atlantique, IN2P3/CNRS, University of Nantes, France
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Isabelle DENIAU: SUBATECH Laboratory, UMR 6457, Institut Mines-Télécom Atlantique, IN2P3/CNRS, University of Nantes, France
INTRODUCTION
Key points
Sector: Metallurgy
Degree of technology diffusion: Growth
Technologies involved: Gamma spectrometry
Areas of application: Construction
Main French players :
Competitive clusters: SUBATECH laboratory, Centre Technique et de Promotion des Laitiers, IRSN.
Manufacturers: ArcelorMittal.
Radiation protection regulations have been modified in the European Union. Problems related to natural radioactivity are to be taken into account more rigorously. In particular, building materials will be subject to specific regulations designed to limit the doses received by building occupants.
Blast furnace slag contains natural radioactivity, and can be described as a raw material whose radionuclide concentration has been increased by an industrial process (TENORM: Technologically Enhanced Naturally Occurring Radioactive Materials).
Thus, their use as building materials could be limited by new regulations. However, slag activity is low and therefore difficult to measure. The values available do not allow reliable decisions to be made about their employability as building materials.
The study presented in this article was carried out by ArcelorMittal in collaboration with SUBATECH to better define the problem, improve measurement quality and, above all, accumulate sufficient reliable measurements to establish the employability of blast furnace slag as a building material.
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KEYWORDS
building | radioactivity | gamma spectrometry | slag
This article is included in
Metal manufacturing processes and recycling
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Radioactivity of blast furnace slag
Regulatory context: the new 2013/59/Euratom directive
Bibliography
- (1) - Élément pour la caractérisation radiologique des matières et effluents en application de l'arrêté du 25 mai 2005. - Rapport IRSN (2008).
Also in our database
Standards and norms
- "Measuring radioactivity in the environment - Soil – Part 3: Test method for gamma-emitting radionuclides by gamma spectrometry". - NF EN ISO 18589-3 - mars 2018
- "Water quality – Application of inductively coupled plasma mass spectrometry (ICP-MS) – Part 2: Determination of selected elements including uranium isotopes". - NF EN ISO 17294-2 - octobre 2016
Regulations
Council Directive 2013/59/Euratom of December 5, 2013 laying down basic safety standards for health protection against the dangers arising from exposure to ionizing radiation and repealing Directives 89/618/Euratom, 90/641/Euratom, 96/29/Euratom, 97/43/Euratom and 2003/122/Euratom.
Regulation RP112: radiation protection principles concerning the natural radioactivity of building materials.
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