RADIATION SHIELDING FIBROUS CONCRETE Russian patent published in 2003 - IPC

FIELD: building materials for shielding from ionizing radiation. SUBSTANCE: compound includes litharge-glycerin cement incorporating commercial glycerin, lead oxide, water, carbon black as doping additive, and steel fiber as reinforcing additive. Ratio of components is as follows, mas.%: commercial glycerin, 12.3-23.79; lead oxide, 68.55-71.58; carbon black, 1.34-1.42; steel fiber, 12.52-16.2; water, 1.61-1.69. EFFECT: enhanced bending and compression strength of material, enlarged source of raw materials. 1 tbl