LIGHTWEIGHT FILLER FOR WATERPROOF BITUMEN MEMBRANES Russian patent published in 2020 - IPC C04B26/26 C08L95/00 C04B14/24 C04B111/27 C04B111/28 

FIELD: construction.

SUBSTANCE: present invention relates to waterproof bitumen membranes for protection of buildings and bridges. Water-proof membrane for protection of buildings or bridges, containing reinforcing material, coated and/or impregnated with composition of mixture, where reinforcing material forms reinforcing layer located between two layers containing composition of mixture, where composition of mixture is applied on upper side of reinforcing material and on lower side of reinforcing material and, possibly, the reinforcing material is impregnated with the composition of the mixture, and additionally containing the filling film as the lowest layer in the waterproof membrane, wherein composition of mixture is solid at room temperature and contains, wt. %: 50–90 bitumen or bitumen and plasticiser mixture, 2–25 elastomeric block-copolymer and/or terpolymer and/or 2–40 plastomer block copolymer and/or terpolymer and 5–45 glass spheres having a particle size of 0.25–0.50 mm and particle density of 0.5–0.8 g/cm³. Application of composition of mixture as coating and/or impregnating composition for reinforcing material in production of waterproof membrane for protection of buildings or bridges according to any of cl. 1–46, wherein the composition of the mixture is solid at room temperature and contains the following in wt. %: 50–90 bitumen or bitumen and plasticiser mixture, 2–25 elastomeric block-copolymer and/or terpolymer and/or 2–40 plastomer block copolymer and/or terpolymer and 5–45 glass spheres having a particle size of 0.25–0.50 mm and particle density of 0.5–0.8 g/cm³. Composition of mixture for use in production of said waterproof membrane.

EFFECT: technical result is facilitation of membranes while maintaining their geometric characteristics and strength and installation properties.

48 cl, 3 dwg, 9 tbl, 24 ex