COMPOSITION AND IT'S MANUFACTURE METHOD OF SACRIFICIAL CONCRETE FOR EX-VESSEL CORE COOLING SYSTEM

摘要

The present invention provides a sacrificial concrete composition for an ex-vessel core cooling system and a manufacturing method thereof. The sacrificial concrete composition for an ex-vessel core cooling system according to the present invention comprises 68-82 wt% of strontium hexaferrite (SrCO3) and 18-32 wt% of aluminum cement. A method for manufacturing a sacrificial concrete composition for an ex-vessel core cooling system according to the present invention prepares strontium (SrFe12O19) by calcinating iron (III) oxide (Fe2O3) and strontium hexaferrite (SrCO3) mixed at the ratio of 1:0.154; mixes the strontium (SrFe12O19) with commercial cement, comprising 85 wt% of iron (III) oxide (Fe2O3) and 15 wt% of calcium oxide (CaO) at the ratio of 1:0.327; and then manufactures sacrificial concrete through high-temperature compression molding of the mixture.