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Long-term and safe management of radioactive wastes, that was formed as a result of implementation of nuclear weapon programs, still remains a key problem of the nuclear energetics. The technology based on the admixture of liquid radioactive wastes in inorganic hydraulic binders (cementation process) has a number of cogent advantages: the process is of low-temperature, it proceeds without formation of gaseous radioactive wastes and the obtained cement compound provides the safety storage for a long time (more than 106 years). For the purpose to increase the degree of the cement compound filling with the liquid radioactive wastes, the possibility to apply reinforcing fillers was researched, these fillers are multilayered carbon nanotubes (MCNT) and pyrogenic silica (aerosil). It has been revealed that the proportion of MCNT should not exceed 1.5% by weight of the cement content and the aerosil proportion should not exceed 0.5% of the binder weight. The expediency of using the effects of cavitation technology in the preparation of the cement compound.

Improvment оf Mechanical Properties of the Cement Compound in Order to Increase the Degree of Its Filling