Steel slag micro-surfacing-vibration marking structure for bridge deck pavement

CN222160990UActive Publication Date: 2024-12-13YUNNAN HIGHWAY BUREAU ROAD & BRIDGE TECH ENG CO
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Patent Information

Application Number
CN202420748440.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-11
Publication Date
2024-12-13
Estimated Expiration
2034-04-11

AI Technical Summary

Technical Problem

Steel slag expands when exposed to water in bridge deck applications, resulting in broken and unblocking interfaces with vibration marks, limiting its application in road surface layers and bridge decks.

Method used

Adopt steel slag microsurface-vibration marking structure for bridge deck paving, including vibration marking, emulsified asphalt bonding layer, high-strength wear-resistant steel slag microsurface, AC-16SBS modified asphalt concrete surface layer, PC-3 type The cationic emulsified asphalt adhesive layer, AC-20 matrix asphalt concrete surface layer, water-based asphalt-based waterproof bonding layer and the cast-in-place concrete layer of the original bridge deck, the steel slag is inorganic modified pore sealed through the emulsified asphalt adhesive layer, and the steel slag is vibrated. A steel slag 1# material layer is set below the marking line to enhance structural stability and load-bearing capacity.

Benefits of technology

Effectively reduces the water absorption and wear value of steel slag, improves volume stability, reduces the probability of fracture and purging of the interface with the vibration mark, broadens the application range of steel slag micro-surfaces, and alleviates the shortage of natural materials through waste utilization. question.

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Abstract

The utility model discloses a steel slag micro-surfacing-vibration marking structure for bridge deck pavement. The structure comprises a vibration marking line, an emulsified asphalt bonding layer arranged below the vibration marking line, a steel slag micro-surfacing, an AC-16SBS modified asphalt concrete surface layer, a PC-3 type cation emulsified asphalt bonding layer, an AC-20 matrix asphalt concrete surface layer, a water-based asphalt-based waterproof bonding layer and an original bridge deck concrete cast-in-place layer from top to bottom. The bridge deck pavement is locally repaired by means of the steel slag micro-surfacing, the emulsified asphalt bonding layer arranged below the vibration marking line is used for carrying out surface modification treatment on the steel slag micro-surfacing, then the vibration marking line is laid, and the problems that the steel slag micro-surfacing expands, and consequently a contact interface between the vibration marking line and the steel slag micro-surfacing is broken and blocked are solved; while the strength of the repaired bridge floor is enhanced, the connection stability of the vibration marking and the steel slag micro-surfacing is improved.
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Citation Information

Patent Citations

  • Whole-series steel slag combined asphalt pavement structure

    CN117188240A