COMPOSITE FOR HIGH-DENSE MASTICS PREPARING Russian patent published in 2002 - IPC

FIELD: building materials. SUBSTANCE: composite comprises the following components, wt. -%: resorcinol- formaldehyde resin, 17.73-19.46; paraformaldehyde, 2.39-2.63; waste of optical glass production with specific surface 2000 cm²/g, 77.81-79.79; organosilicon liquid GKZH-10, 0.05-0.10. Mastic has average density 3040- 3160 kg/γ-, attenuation coefficient of m³-radiation at γ- = 0.3 MeV, 0.795-0.850 hν₀, attenuation coefficient of cm^-1-radiation at γ- = 1 MeV, 0.208-0.215 hν₀. Invention can be used for preparing building high-dense mastics recommended for repair and restoration of building constructions working in zones of enhanced radiation and for gluing protective materials as facing tiles also. EFFECT: enhanced average density and attenuation coefficient of cm^-1-radiation of material for protection against ionizing radiation. 2 tbl