COMPOSITE FOR COMPOSITION MATERIAL Russian patent published in 2003 - IPC

FIELD: building materials. SUBSTANCE: composite for composition material comprises the following components, wt.-%: furfurolacetone resin FAM, 13.0-16.0; benzenesulfoacid, 3.0-3.7; polyhydric alcohol, 0.1-0.2; powdered pyrite cinders, 6.0-6.5; glass netting, 0.3-0.9; wood chips, 14.0-16.0; granite rubble, 24.0-25.0; depleted machine oil, 4.0-5.0 and divinylstyrene thermoelastoplastic 0.9-1.1 in kerosene. Strength, MPa in: compression along fibers of filling agent, up to 79.0; bearing strength across fibers of filling agent, up to 35.0; bending, up to 24.0; shearing, up to 65.0; elasticity modulus, •10⁴ MPa at: compression, up to 1.3; bending, up to 1.5; density, up to 1,1 t/m³; water absorption for 260 days, up to 0.9%; relative tensile deformation value, up to 0.06%; stability coefficients in water: by strength, up to 0.74; by rigidity, up to 0.70; resistance to cold, up to 450 cycles. The proposed composite of matrix of composite material consisting of hydrophobic components in combination with the corresponding impregnation of article surface and reinforcing wood filling agent guarantees impermeability of its structure, exploitation longevity and reduced cost. Invention can be used in production of building materials based on thermoreactive resins that are used in members of constructions, for example, in railway cross ties working under conditions of corrosive media, dynamic loadings, sign-alternated temperatures, electric current and showing the enhanced exploitation properties. EFFECT: improved and enhanced properties of composite. 2 tbl