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A bridge deck structure with an ice-melting functional layer and its ice-melting method

A functional layer, ice melting technology, applied in the direction of pavement details, bridges, bridge parts, etc., can solve the problems of corroding bridge deck steel bars, threatening traffic safety, threatening bridge structural safety, etc., to improve effectiveness, reduce thickness, and avoid problems. Corrosion effect of bridge deck reinforcement

Inactive Publication Date: 2015-10-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In winter, the bridge deck freezes, which threatens driving safety; in order to prevent ice from freezing after snow, it is necessary to sprinkle deicing agent on the bridge deck, but the deicing agent is easy to penetrate into the bridge deck structure, corrode the bridge deck steel reinforcement, and threaten the safety of the bridge structure

Method used

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  • A bridge deck structure with an ice-melting functional layer and its ice-melting method
  • A bridge deck structure with an ice-melting functional layer and its ice-melting method
  • A bridge deck structure with an ice-melting functional layer and its ice-melting method

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Effect test

Embodiment 1

[0033] On the cement concrete layer of a highway, the deicing functional layer of the present invention has been implemented. The area of ​​the bridge deck is 220m 2 .

[0034] (1) The structure and materials of the ice-melting functional layer of the bridge deck pavement

[0035] Such as figure 1 As shown, during the construction of the cement concrete layer 2, the steel grid 1 is installed before the initial setting of the cement concrete; after the cement concrete on the bridge deck is cured, the waterproof coating is sprinkled to form the waterproof coating layer 3, wherein the waterproof coating is made of polyurethane material, Spreading amount is 0.1kg / m 2 . After the waterproof coating is cured, a gravel spreader is used to fill the middle layer of the reinforcement grid 1 with conductive aggregate to form the conductive aggregate layer 4 . Finally, the asphalt pavement 5 is constructed so that the upper layer of the reinforcement grid 1 is embedded in the asphalt...

Embodiment 2

[0045] On the cement concrete layer of a municipal road, the deicing functional layer of the present invention is implemented. The bridge deck has an area of ​​138m 2 .

[0046] (1) The structure and materials of the ice-melting functional layer of the bridge deck pavement

[0047] Such as figure 1 As shown, during the construction of the cement concrete layer 2, the reinforcement grid 1 is installed before the initial setting of the cement concrete; After the waterproof coating is cured, a gravel spreader is used to fill the middle layer of the reinforcement grid 2 with conductive aggregate 4 . Finally, the asphalt pavement 5 is constructed so that the upper layer of the reinforcement grid 1 is embedded in the asphalt pavement.

[0048] Among them, the waterproof coating adopts epoxy resin material. Spreading amount is 1.0kg / m 2 .

[0049] The conductive aggregate is iron ore with an iron content of 10%, and the particle size is 9.5mm-13.2mm.

[0050] Such as figure...

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Abstract

The invention discloses a bridge deck surface paved with an ice-melting functional layer and a method for melting ice by using the bridge deck surface. The bridge deck surface paved with the ice-melting functional layer comprises steel grids, a cement concrete layer, a water-proof coating layer, a conducting aggregate layer and an asphalt paving layer, wherein the steel grids form a three-layer cuboid structure; the lower layer steel grids are embedded into the cement concrete layer; the middle layer steel grids are filled with the cement concrete layer constructed by conducting aggregate; the upper layer steel grids are arranged in the asphalt paving layer; surface-untreated steel grids are paved at the two ends of the transverse section of a bridge deck at the distance a=(20-100) centimeters away from the outer side edges of the bridge deck; the surface-coated steel grids are paved on the middle part of the bridge deck; the surface-untreated steel grids at the two ends of the bridge deck are connected to the anode and the cathode of a power supply respectively. By adopting the bridge deck surface paved with the ice-melting functional layer disclosed by the invention, heat is generated after electrification to heat the asphalt paving layer, so that an ice-melting function is realized, and winter traveling safety is facilitated; the phenomenon of steel bar rusting on the bridge deck caused by spraying of a snow-melting agent is avoided.

Description

technical field [0001] The invention relates to a road pavement structure and a construction method, in particular to a bridge deck structure provided with an ice-melting functional layer between a cement concrete layer and an asphalt pavement layer and a method for using the same to melt ice. Background technique [0002] In winter, the bridge deck freezes, which threatens driving safety; in order to prevent ice from freezing after snow, it is necessary to sprinkle deicing agent on the bridge deck, but the deicing agent is easy to penetrate into the bridge deck structure, corrode the bridge deck steel reinforcement, and threaten the safety of the bridge structure. Therefore, there is an urgent need to find other ways to melt ice. Contents of the invention [0003] The object of the present invention is to provide a bridge deck structure with an ice-melting functional layer that avoids the corrosion of bridge deck steel bars caused by spraying deicing agents, effectively m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/12E01C11/26
Inventor 葛折圣葛宁翔张青山舒立恒
Owner SOUTH CHINA UNIV OF TECH
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