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Long-life pavement structure for steel bridge deck and pavement method of pavement structure

A long-life, steel bridge deck technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of large proportion of fine materials, small void ratio, brittle fracture, etc., and achieve the effect of avoiding performance requirements

Active Publication Date: 2015-04-08
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional epoxy asphalt concrete is suspended and dense, with a large proportion of fine materials and a small void ratio. Therefore, the pavement structure for steel bridge decks using epoxy asphalt concrete has good waterproof performance, but the surface of the pavement structure is smooth and the structure The depth is small, resulting in poor anti-skid performance; conventional epoxy asphalt concrete has high material strength, which makes it have good high-temperature anti-rutting and anti-fatigue performance. However, in terms of low-temperature cracking resistance, brittle fracture is also prone to occur

Method used

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  • Long-life pavement structure for steel bridge deck and pavement method of pavement structure
  • Long-life pavement structure for steel bridge deck and pavement method of pavement structure
  • Long-life pavement structure for steel bridge deck and pavement method of pavement structure

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Experimental program
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Embodiment 1

[0046] Such as figure 1 As shown, the steel bridge deck pavement structure of this embodiment is provided with an anticorrosion layer 2, a lower bonding layer 3, a lower crushed stone layer 4, a structural layer 5, and an upper bonding layer on the steel bridge deck 1 from bottom to top. Layer 6, upper gravel layer 7 and wear layer 8; the anticorrosion layer 2 and the structural layer 5 are bonded through the lower bonding layer 3, and the structural layer 5 and the wearing layer 8 are bonded through the upper bonding layer 6; the lower layer The gravel layer 4 is embedded between the lower bonding layer 3 and the structural layer 5 , and the upper crushed stone layer 7 is embedded between the upper bonding layer 6 and the wearing layer 8 .

[0047] The anti-corrosion layer 2 is coated with epoxy zinc-rich paint, which is mainly composed of epoxy resin, polyamide resin, aluminum paste and additives; the thickness of the anti-corrosion layer 2 is 82 μm.

[0048] Both the lower...

Embodiment 2

[0104] The long-life pavement structure for the steel bridge deck used in embodiment 2, except that the aggregate gradation of the epoxy asphalt concrete EA-5 of the wearing layer 8 is different from that of embodiment 1, the preparation and pavement methods of the rest of the materials are all the same as those in embodiment 1. Same as Example 1.

[0105] The aggregate gradation of the epoxy asphalt concrete EA-5 of the wearing layer 8 is shown in Table 18.

[0106] The aggregate gradation of epoxy asphalt concrete EA-5 in table 18 embodiment 2

[0107]

[0108]

Embodiment 3

[0110] The long-life pavement structure for the steel bridge deck used in embodiment 3, except that the aggregate gradation of the epoxy asphalt concrete EA-5 of the wearing layer 8 is different from that of embodiment 1, the preparation and pavement methods of the rest of the materials are all the same as those in embodiment 1. Same as Example 1.

[0111] The aggregate gradation of the epoxy asphalt concrete EA-5 of the wearing layer 8 is shown in Table 19.

[0112] The aggregate gradation of epoxy asphalt concrete EA-5 in table 19 embodiment 3

[0113]

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Abstract

The invention discloses a long-life pavement structure for a steel bridge deck and a pavement method of the pavement structure. The long-life pavement structure comprises an anti-corrosion layer, a lower adhesive layer, a lower gravel layer, a structural layer, an upper adhesive layer, an upper gravel layer and a wearing layer which are sequentially arranged on the steel bridge deck from bottom to top. The pavement structure has excellent antiskid and waterproof performances, low-temperature cracking resistance, high-temperature rutting resistance, fatigue resistance and water stability, is fine in deformation compatibility with a steel plate and wear-resistant, surface aggregates do not easily fall off, the pavement method of the pavement structure is high in mechanization degree and strong in feasibility, the paved steel bridge deck can be put into operation in a short time, only the wearing layer of the pavement structure is damaged, only regular surface milling and top facing repair are needed, the pavement structure does not need to be structurally reconstructed in a long service life period, maintenance is facilitated, maintenance cost is saved, and the pavement method conforms to the design concept of a long-life pavement and also conforms to the energy conservation and environmental protection concept of modern society.

Description

technical field [0001] The invention belongs to the technical field of bridge deck engineering, and relates to a long-life pavement structure for a steel bridge deck and a pavement method thereof, in particular to a steel bridge with both anti-skid performance and waterproof performance, low-temperature performance and high-temperature performance Long-life pavement structure and pavement method for surface. Background technique [0002] The pavement structure for the steel bridge deck is the protective layer of the steel bridge deck and the functional layer that directly provides services to users. It plays an important role in the durability of the bridge, driving safety, comfort, and economic and social benefits. Compared with ordinary road pavement structures, the pavement structures for steel bridge decks have the following characteristics: (1) The pavement structures for steel bridge decks are generally located in traffic throats, and the traffic pressure is relatively...

Claims

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Application Information

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IPC IPC(8): E01D19/12E01D21/00E01C7/32
CPCE01C7/32E01C7/325E01D19/125E01D21/00
Inventor 钱振东薛永超张旭周亚东
Owner SOUTHEAST UNIV
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