Abstract

A composite material with a cohesion strength of 2.94 MPa, an adhesion of 2.6 MPa to steel 3, and a specific elongation of 75% was prepared based on shale phenols. It was used for radioactive waste immobilization. The leachability of cesium from immobilized blocks was 1 × 10−10 cm2/s, which is several orders of magnitude lower than the leachability of 1 × 10−6 cm2/s from Portland cement. The leachability of cesium from immobilized spent ion exchanger containing cesium was 1 × 10−11 cm2/s.

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