【摘 要】
：
In the context of managing radioactive waste from old UNGG (Uranium Naturel / Graphite / Gaz) reactors, the best conditioning solutions have to be found.Classic solution for low and medium waste activ
【机 构】
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Laboratoire de Chimie des Fluides complexes et Irradiation, CEA Marcoule, DEN/DTCD/SPDE, BP17171,302
【出 处】
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The 14th International Congress on the Chemistry of Cement (
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In the context of managing radioactive waste from old UNGG (Uranium Naturel / Graphite / Gaz) reactors, the best conditioning solutions have to be found.Classic solution for low and medium waste activity is the use of concrete and cement.Nevertheless, the interaction of magnesium alloys with conventional concrete/cement leads to a high release of dihydrogen.Geopolymer, considered as a new alternative matrix, is an amorphous and mesoporous (2 to 50nm) material formed by alkaline activation of alumino-silicate source.The aim of this study is to determine the impact of irradiation (α, β, γ) on geopolymers and to notify the formulation parameters influence on radical mechanisms, porosity and structural modifications.To achieve this, each component of a reference formulation (1 Al2O3 3.6 SiO2 1.2 Na2O 12 H2O) will be changed.
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