METHOD FOR SECURING THE STORAGE OF LONG-LIVED RADIOACTIVE WASTE

摘要

The invention relates to a radioactive package for storage at the ground surface or underground, including radioactive waste and a first layer of vitrified materials, as well as a blocking layer including a matrix containing liquefied thermoplastic materials including a mixture of thermoplastic materials micronized to 400 to 700 microns and preferably to 500 microns, and an iron oxide powder micronized to 80 to 250 microns. The invention also relates to the blocking layer and to a method for securing a radioactive waste package.