Conditioning lightly contaminated nuclear plant rubble - to obtain particles for concrete prodn., comprises crushing to suitable particle size and sepg. non-crushable fractions

摘要

Conditioning of highly contaminated nuclear plant rubble is carried out by crushing to a particle size suitable for concrete prodn. and sepg. non-crushable and unsuitable fractions, producing concrete from the crushed particles by addn. of cement, water and binder, pouring the concrete into containers filled with bulky radioactive waste (e.g. waste flasks or large components) and then setting the concrete. Novelty comprises producing the concrete in two stages involving mixing cement, binder, water and/or sludge in a first mixing stage and mixing this mixt. with the crushed rubble in a second mixing stage. ADVANTAGE - Contamination-free processing of the rubble can be carried out in a fully mobile plant in which combustible fractions are sorted out and the rubble is crushed to a size suitable for use as filler for container cementing.