METHOD FOR CONSTRUCTING FORMED EXPANSION JOINT OF BRIDGE PASSING AND FORMED EXPANSION JOINT Russian patent published in 2005 - IPC

FIELD: pavement building and repair, particularly expansion joint construction.

SUBSTANCE: method involves filling gap between beams above sealing padding with cold mastic comprising at least two liquid dence oil products, namely products of propane oil residue deasphalting, bitumen, tar, mazut, gas-oil, lube fraction and naphtheno-aromatic hydrocarbons taken in amount of 48.0 - 80.0 % by weight, colloidal solution of acrylic acid ester copolymer with butadiene, styrene, acrylonitrile and/or vinylpyridine copolymer with butadiene and styrene and/or vinyl- and vinylidene chloride copolymer with butadiene and/or polyisoprene and/or butyl rubber and/or poly isobutylene and/or styrene and/or butadiene nitrile and/or polyvinylchloride and/or polyacrylamide and/or ethylenpropylene chlorosulphuretted polyethylene and/or carboxylated polymer and/or urethane polymer taken in amount of 10.0 - 26.0 % by weight, remainder - mineral component; hardening cold mastic; filling upper space between beams with hot mastic. Expansion joint includes sealing padding and cold mastic formed of material including at least two liquid dense oil products, namely products of propane oil residue deasphalting, bitumen, tar, mazut, gas-oil, lube fraction and naphtheno-aromatic hydrocarbons taken in amount of 48.0 - 80.0 % by weight, colloidal solution of acrylic acid ester copolymer with butadiene, styrene, acrylonitrile and/or vinylpyridine copolymer with butadiene and styrene and/or vinyl- and vinylidene chloride copolymer with butadiene and/or polyisoprene and/or butyl rubber and/or poly isobutylene and/or styrene and/or butadiene nitrile and/or polyvinylchloride and/or polyacrylamide and/or ethylenpropylene chlorosulphuretted polyethylene and/or carboxylated polymer and/or urethane polymer taken in amount of 10.0 - 26.0 % by weight remainder - mineral component.

EFFECT: increased service life of bridge passing.

3 cl, 4 dwg