Longitudinal characterization of Dunkirk production
Radioactivity of blast furnace slag — Impact on their use in construction

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Longitudinal characterization of Dunkirk production


Radioactivity of blast furnace slag — Impact on their use in construction

Authors : Pierre Gaujé, François HANROT, Marcel BANDOMBELE MOKILI, Mickaël BAILLY, Isabelle DENIAU

Publication date: March 10, 2019 | Lire en français

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3. Longitudinal characterization of Dunkirk production

We carried out an index I assessment campaign defined by Directive 2013/59/Euratom on slags produced by the Dunkirk plant over 6 months, from January to June 2015.

3.1 Sampling

The ores consumed by Dunkirk are homogenized; ship cargoes are unloaded in superimposed layers to form stockpiles, which are then taken back by slice to feed the three blast furnaces in the smelting department.

A stockpile represents a week's consumption. At the blast furnace, slag is taken at each pour. We collected slag samples from HF4, the plant's largest, between 1 er June and December 31, 2015. From each sample, a constant mass was taken after grinding. These constant mass samples were pooled to obtain a compound...

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