Method for constructing formed expansion joint of bridge passing and formed expansion joint

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

 

The proposal relates to the construction and repair of road surface, namely the method of creating an expansion joint in the road surface of the bridge and the generated temperature joints of the bridge.

A known method of creating an expansion joint of the bridge by installing a sealing gasket in the gap between the edges of the beams, the surface of the mould with hot mastic, filling the upper part of the gap between the beams of the hot mastic installation over the gap between the beams protective sheet metal layer and fill the cavity of the mould crushed stone-mastic mixture [1].

Known also Formozov of the bridge, including made in the upper parts of beams and filled with crushed stone-mastic mixture basin placed on the surface of the mould and the upper part of the gap between the beams of the layer of insulating material from the hot mastic is placed in the gap between the beams sealing gasket and placed in the lower part of the mould over the gap between the beams, sheet metal [1].

However, the known method and device have the following disadvantages.

When processing the surface of the mould with hot mastic latter, acting on the sealing gasket, in some cases, burn it. This leads to a decrease tightness and durability of Formosa. When using th the mesh mastic layer of insulating material in the upper part of the gap often lags behind the surface of the beams. This worsens the waterproofing of the structure, which leads to the rupture of the road surface. Rain streams mixes with salt, gasoline, oil, form flows of corrosive waters that penetrate through the damaged seal, destroy the bearing span, reduce the service life of the bridge.

The closest to the essence and the achieved technical result in part of the method is a method of creating an expansion joint of the bridge by installing a sealing gasket in the gap between the edges of the beams, the processing surface of the mould with hot mastic, filling the upper part of the gap between the beams protective sheet metal layer and fill the cavity of the mould crushed stone-mastic mixture [2].

The closest to the essence and the achieved technical result in part of the device is formed expansion joint of the bridge, including made in the upper parts of beams and filled with crushed stone-mastic mixture basin placed on the surface of the mould and the upper part of the gap between the beams layers of insulating material from the hot mastic is placed in the gap between the beams sealing gasket and placed in the lower part of the mould over the gap between the beams, sheet metal [2].

Technical result for the achievement of which is directed to the solution, is to increase the service life of the bridge.

This result in part of the object “method” is due to the fact that in the method of creating an expansion joint of the bridge by installing a sealing gasket in the gap between the edges of the beams, the processing surface of the mould with hot mastic, filling the upper part of the gap between the beams of the hot mastic installation over the gap between the beams protective sheet metal layer and fill the cavity of the mould crushed stone-mastic mixture according to the invention before filling the upper part of the gap between the beams hot mastic on top of the gasket in the gap between the beams poured cold mastic consisting of 48,0-80,0 wt.% a mixture of at least two liquid heavy products, selected among the products of propane deasphalting of petroleum residues, bitumen, tar, fuel oil, gas oil, oil fraction, naranarayana hydrocarbons; of 10.0 to 26.0 wt.% colloidal dispersion of a copolymer of esters of acrylic acid with butadiene, styrene, Acrylonitrile, and/or copolymer vinylpyridine with butadiene and styrene and/or vinyl copolymer and vinylidenechloride with butadiene and/or polyisoprene, and/or butyl rubber and/or polyisobutylene, and/or butadiene-styrene and/or butadiene-nitrile, and/or polyvinyl chloride, and/or poly is crylamide, and/or ethylene-propylene chlorosulfonated polyethylene, and/or carboxylate polymer, and/or urethane polymer and a mineral component - rest, after which the sealant can withstand before its hardening.

This result in part of the object “device” is due to the fact that in the generated temperature seam of the bridge, including made in the upper parts of beams and filled with crushed stone-mastic mixture basin placed on the surface of the mould and the upper part of the gap between the beams layers of insulating material from the hot mastic is placed in the gap between the beams sealing gasket and placed in the lower part of the mould over the gap between the beams, sheet metal, according to the invention in the gap between the beams above the sealing gasket placed additional strip of cold mastic consisting of 48,0-80,0 wt.% a mixture of at least two liquid heavy products, selected among the products of propane deasphalting of petroleum residues, bitumen, tar, fuel oil, gas oil, oil fraction, naranarayana hydrocarbons; of 10.0 to 26.0 wt.% colloidal dispersion of a copolymer of esters of acrylic acid with butadiene, styrene, Acrylonitrile, and/or copolymer vinylpyridine with butadiene and styrene and/or vinyl copolymer and vinylidenechloride with bout what yenom, and/or polyisoprene, and/or butyl rubber and/or polyisobutylene, and/or butadiene-styrene and/or butadiene-nitrile, and/or polyvinyl chloride, and/or polyacrylamide, and/or ethylene-propylene chlorosulfonated polyethylene, and/or carboxylate polymer, and/or urethane polymer and a mineral component - the rest.

The invention is illustrated graphically, where

figure 1 presents the proposed Formoso;

in figure 2,3,4 - drawings explaining the stages form a seam.

The formed seam (Formozov) bridge includes made in the road surface 1 over the upper parts of the beams 2 and 3 basin 4 filled with crushed stone-mastic mixture 5. On the surface of the mould 4 and the upper part of the gap 6 between the beams 2, 3 are made of the layer 7 of insulating material from the hot mastic. In the gap 6 between the beams placed the gasket 8. In the lower part of the mould 4 over the gap 5 between the beams 2 and 3 is placed a metal sheet 9. In the gap between the beams 6 on the sealing gasket 8 posted by an additional strip 10 from a two-component cold mastic.

As a cold two-component mastic may be adopted waterproofing material cold hardening, consisting of 48,0-80,0 wt.% a mixture of at least two liquid heavy products, selected among the products of propane deasphalted the tion of petroleum residues, bitumen, tar, fuel oil, gas oil, oil fraction, naranarayana hydrocarbons; of 10.0 to 26.0 wt.% colloidal dispersion of a copolymer of esters of acrylic acid with butadiene, styrene, Acrylonitrile, and/or copolymer vinylpyridine with butadiene and styrene and/or vinyl copolymer and vinylidenechloride with butadiene and/or polyisoprene, and/or butyl rubber and/or polyisobutylene, and/or butadiene-styrene and/or butadiene-nitrile, and/or polyvinyl chloride, and/or polyacrylamide, and/or ethylene-propylene chlorosulfonated polyethylene, and/or carboxylate polymer, and/or urethane polymer; 10,0-25,0 wt.% mineral component.

Formozov create the following way. In the road surface 1 over the upper parts of the beams 2 and 3 are cut down basin 4. Then in the gap between the edges of the beams establish sealing gasket 8. On top of the gasket in the gap between the beams poured cold two-component mastic and incubated for it to harden. The surface of the mould and the upper part of the gap between the beams is treated with hot mastic. Set over the gap between the beams, sheet metal cover. Next, produce a layer-by-layer filling the cavity of the mould crushed stone-mastic mixture.

Thus, the proposed technical solution will increase the service life of the safety strip, and sledovat is Ino, to increase the service life of the bridge.

Sources of information

1. The prospectus of the company Lafrenz “Asphalt transition zone of the roadway. System: Thorma® -Joint”.

2. Patent DE 3720643 A1, 26.01.1989, E 01 D 19/06.

1. Method of creating an expansion joint of the bridge by installing a sealing gasket in the gap between the edges of the beams, the processing surface of the mould with hot mastic, filling the upper part of the gap between the beams of the hot mastic installation over the gap between the beams protective sheet metal layer and fill the cavity of the mould crushed stone-mastic mixture, characterized in that before filling the upper part of the gap between the beams hot mastic on top of the gasket in the gap between the beams poured cold mastic consisting of 48,0-80,0 wt.% a mixture of at least two liquid heavy products, selected among the products of propane deasphalting of petroleum residues, bitumen, tar, fuel oil, gas oil, oil fraction, naranarayana hydrocarbons; of 10.0 to 26.0 wt.% colloidal dispersion of a copolymer of esters of acrylic acid with butadiene, styrene, Acrylonitrile, and/or copolymer vinylpyridine with butadiene and styrene and/or vinyl copolymer and vinylidenechloride with butadiene and/or polyisoprene, and/or butyl rubber and/or polyisobutylene, and/or booted the ene-styrene, and/or butadiene-nitrile, and/or polyvinyl chloride, and/or polyacrylamide, and/or ethylene-propylene chlorosulfonated polyethylene, and/or carboxylate polymer, and/or urethane polymer and a mineral component - rest, after which the sealant can withstand before its hardening.

2. Formed expansion joint of the bridge, including made in the upper parts of beams and filled with crushed stone-mastic mixture basin placed on the surface of the mould and the upper part of the gap between the beams layers of insulating material from the hot mastic is placed in the gap between the beams sealing gasket and placed in the lower part of the mould over the gap between the beams, sheet metal, characterized in that thein the gap between the beams above the sealing gasket placed additional strip of cold mastic consisting of 48,0-80,0 wt.% a mixture of at least two liquid heavy products, selected among the products of propane deasphalting of petroleum residues, bitumen, tar, fuel oil, gas oil, oil fraction, naranarayana hydrocarbons; of 10.0 to 26.0 wt.% colloidal dispersion of a copolymer of esters of acrylic acid with butadiene, styrene, Acrylonitrile, and/or copolymer vinylpyridine with butadiene and styrene and/or vinyl copolymer and vinylidenechloride with bout what yenom, and/or polyisoprene, and/or butyl rubber and/or polyisobutylene, and/or butadiene-styrene and/or butadiene-nitrile, and/or polyvinyl chloride, and/or polyacrylamide, and/or ethylene-propylene chlorosulfonated polyethylene, and/or carboxylate polymer, and/or urethane polymer and a mineral component - the rest.



 

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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.

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