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Transition layer of steel bridge deck pavement structure

A transition layer, steel bridge deck technology, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of difficult paving of steel bridge deck, easy deformation of pavement structure, cracking of pavement structure, etc., and achieve excellent elastic recovery High rate and self-leveling properties, prevent deformation and peeling, prevent local area chipping effect

Active Publication Date: 2020-09-25
重庆市智翔铺道技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the steel bridge deck pavement structure as mentioned above, there is a problem that the steel bridge deck is not easy to be paved during the paving process, and there are problems that the pavement structure is easy to deform and fall off during the use process, especially when the service time reaches After a few years, there will also be localized areas of cracking inside the pavement structure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A steel bridge deck pavement structure transition layer, which is a blend of epoxy-modified polyurethane and fillers with a particle size of less than 5mm (light calcium carbonate: hollow microspheres: fumed silica = 70:25:15) Prepared, the powder-to-glue ratio in the epoxy-modified polyurethane is powder:glue=75:25, the thickness of the prepared transition layer is 10mm, the elastic recovery rate is not less than 98%, and the compression ratio is not more than 4%.

[0017] When applying the transition layer, the steel bridge deck should be derusted first to meet the cleanliness and roughness requirements, and then the anti-corrosion layer should be sprayed. After the anti-corrosion layer is completely dry, the mixed epoxy-modified polyurethane Pave it with filler on the surface of the anti-corrosion layer, and form the transition layer after it is self-leveling.

Embodiment 2

[0019] A steel bridge deck pavement structure transition layer, which is prepared by blending epoxy-modified polyurethane with a filler (kaolin: hollow microspheres: fumed silica=65:30:10) with a particle size less than 5mm, The powder-to-glue ratio in the epoxy-modified polyurethane is powder:glue=70:30, the thickness of the prepared transition layer is 12mm, the elastic recovery rate is not less than 98%, and the compression ratio is not more than 4%.

Embodiment 3

[0021] A steel bridge deck pavement structure transition layer, which is prepared by blending methacrylic resin and fillers with a particle size of less than 5mm (light clay: hollow microspheres: fumed silica = 60:10:5) , the powder-to-glue ratio in the methacrylic resin is powder:glue=65:35, the thickness of the prepared transition layer is 15mm, the elastic recovery rate is not less than 98%, and the compression ratio is not more than 4%.

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PUM

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Abstract

The invention provides a transition layer of a steel bridge deck pavement structure. The transition layer is prepared by blending reactive resin and a filler with the particle size of less than 5mm; the elastic recovery rate of the transition layer is not less than 98%; and the compression ratio of the transition layer is not more than 4%. The transition layer provided by the invention not only has excellent elastic recovery rate and self-leveling performance, but also can be made to be thin and light; when the transition layer provided by the invention is used in the steel bridge deck pavement structure, the problem that a steel bridge deck is not easy to flatten can be solved, the steel bridge deck pavement structure can be prevented from deforming and falling off in a use process, and meanwhile, local area fragmentation in the pavement structure can be prevented.

Description

technical field [0001] The invention belongs to the technical field of steel bridge deck pavement, in particular to a steel bridge deck pavement structure transition layer. Background technique [0002] In the prior art: document CN2017105784945 provides a prefabricated steel bridge deck for small and medium-span bridges and its assembly method. The structure of the steel bridge deck is that a plurality of square steel pipes are vertically inserted and connected side by side through round steel pipes to form an overall plane , and then fixed with bolts; the square steel pipe is filled with concrete filler, and on the overall plane, a concrete leveling layer and an asphalt pavement layer are arranged in sequence; document CN2005100969105 provides a bridge deck pavement for a long-span steel bridge The installation structure, including steel bridge deck, waterproof adhesive layer, transition layer, waterproof adhesive layer and asphalt pavement layer, the transition layer is m...

Claims

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Application Information

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IPC IPC(8): E01D19/12
CPCE01D19/125
Inventor 盛兴跃郝增恒李璐杨波徐建晖刘攀王民全弘彬张锋
Owner 重庆市智翔铺道技术工程有限公司
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