Steel bridge deck pavement method based on magnetic force effect

By laying a magnetically responsive epoxy anti-slip and waterproof adhesive layer and a magnetic epoxy resin asphalt concrete layer on the steel bridge deck, the problem of looseness and insufficient anti-slip properties of traditional steel bridge deck paving is solved by utilizing magnetic adsorption, thus achieving a high-strength and durable steel bridge deck paving effect.

CN121496837AActive Publication Date: 2026-02-10TONGJI UNIV
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Patent Information

Application Number
CN202511669425.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-02-10
Estimated Expiration
2045-11-14

AI Technical Summary

Technical Problem

Traditional steel bridge deck paving methods are susceptible to the effects of moisture, vehicle loads, and climate change during long-term use, leading to loose paving layers, cracking, and insufficient anti-skid properties, which affects the service life of the bridge deck and traffic safety.

Method used

A steel bridge deck paving method based on magnetic effect is adopted. By sequentially laying a magnetically responsive epoxy anti-slip and waterproof bonding layer, a magnetic epoxy resin asphalt concrete layer, and an asphalt mastic crushed stone mixture layer on the steel bridge deck, a high-strength bonding structure is formed by utilizing the magnetic adsorption between magnetic polymer microspheres and magnetic blocks, thereby enhancing anti-slip performance and durability.

Benefits of technology

It significantly improves the interfacial bonding performance and anti-slip capability of steel bridge deck pavement, enhances overall strength and durability, and reduces maintenance and repair frequency, thus possessing significant engineering application value.

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Abstract

The invention provides a steel bridge deck pavement method based on a magnetic force effect, which comprises the following three steps of: paving a magnetic response epoxy anti-sliding waterproof bonding layer on a steel bridge deck, then paving a magnetic epoxy resin asphalt concrete layer, and finally paving an asphalt mastic macadam mixture layer. The magnetic response epoxy anti-sliding waterproof bonding layer adopts the magnetic response epoxy adhesive cement and the aggregate to form an adhesive cement-aggregate-adhesive cement sandwich structure, and the strength and the shearing strength of the bonding layer are enhanced by means of the magnetic adsorption effect between the magnetic polymer microspheres and the magnetic blocks. The magnetic epoxy resin asphalt concrete layer also generates interlayer magnetic adsorption with the'adhesive cement-aggregate-adhesive cement 'sandwich structure through internal magnetic polymer microsphere-magnetic blocks, and the magnetic epoxy resin asphalt concrete layer and the'adhesive cement-aggregate-adhesive cement' sandwich structure jointly form a'double-magnetic effect functional layer 'and are tightly connected through the magnetic adsorption effect, so that the overall cohesiveness and anti-sliding performance of the pavement system are effectively enhanced, and the pavement system is suitable for being used in the field of pavement. The durability and the service life of the steel bridge deck pavement can be improved, and the driving safety is guaranteed.
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