FIELD: nuclear power engineering. SUBSTANCE: cement used for molten core catcher confining molten core of water-cooled tank reactors in case of beyond-design accidents accompanied by corium escape from vessel has following composition, mass percent: finely dispersed trivalent ferric oxide, 40-60; gypsum, 0.8-2; Portland clinker, the rest. It is special- purpose binding material distinguished by ability of cementing ceramic and metal components of corium confining device to form solid monolithic structure and by its functional properties making it possible to reduce enthalpy of molten corium and to oxidize its metal zirconium. EFFECT: enhanced strength and enlarged capabilities of cement. 1 cl, 1 dwg, 1 tbl, 1 ex
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