Compositions of low activation concrete and use thereof
AssigneeIon Beam Applications S.A.
InventorsFrédéric Stichelbaut, Julie Piérard, Laura Kupers
Life of this patent
Estimating the term…
Abstract
The present invention relates to a low-activation concrete comprising high-purity limestone aggregate and white cement, or high-purity limestone aggregate and aluminous cement. The low-activation concrete reduces the content of Europium, Cobalt and Cesium, as well as the content of elements such as Aluminium, Sodium, and Magnesium, when compared to standard concrete compositions and compositions for low-activation concrete already known in the art. The use of the low-activation concrete for forming an interior wall of a particle accelerator vault is provided as well.
Claims15
A low-activation concrete comprising high-purity limestone aggregate and white cement, or high-purity limestone aggregate and aluminous cement,
- the high-purity limestone aggregate comprising more than 97.0% by weight CaCO3,
- wherein in the low-activation concrete comprising high-purity limestone aggregate and white cement the Eu content is less than 0.04 ppm, the Co content is less than 0.80 ppm, and the Cs content is less than 0.1 ppm, and
- wherein in the low-activation concrete comprising high-purity limestone aggregate and aluminous cement the Eu content is less than 0.01 ppm, the Co content is less than 0.26 ppm, and the Cs content is less than 0.03 ppm.
Dependencies are inferred from the claim text.