RADIATION-PROTECTING ORGANIC CONCRETE Russian patent published in 2002 - IPC

FIELD: manufacture of building materials. SUBSTANCE: in particular, invention relates to building materials manufactured from epoxide resin for protection of building units against ionizing radiation damage. Organic concrete contains, wt %: polyethylenepolyamine, 0,71-0,81; epoxide resin (ED-16) binder, 4.76-5.40; modifying additive (varnish KO-922), 0.08-0.16; mineral filler (industrial waste with specific surface 200 sq.m/kg and average density 5100 kg/cu.m), 19.17-21.77; and aggregate (metal beads with particle size 3-4 mm and average density 7000-11000 kg/cu.m), 72.00- 75.26. EFFECT: increased average density and gamma radiation decay coefficient and decreased concrete mix separation tendency. 2 tbl