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Pavement structure of cement concrete bridge deck

A cement concrete and concrete layer technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems that affect the service life of bridge decks and threaten the safety of high-speed traffic

Inactive Publication Date: 2011-01-12
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Premature rutting, lateral movement, cracking and other diseases of cement concrete bridge deck pavement not only threaten the safety of high-speed driving, but also affect the service life of the bridge deck, and also cause certain social impacts

Method used

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  • Pavement structure of cement concrete bridge deck
  • Pavement structure of cement concrete bridge deck
  • Pavement structure of cement concrete bridge deck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 Shown, a pavement structure of cement concrete bridge deck, the top of cement concrete bridge deck 1 is successively provided with epoxy asphalt concrete layer 2 and SMA13 asphalt concrete layer 3; Described cement concrete bridge deck 1 and epoxy asphalt concrete layer 2 are bonded by a waterproof bonding layer 4, and the epoxy asphalt concrete layer 2 and the SMA13 asphalt concrete layer 3 are bonded by a bonding layer 5;

[0052] The thickness of the epoxy asphalt concrete layer 2 is 35mm; the thickness of the SMA13 asphalt concrete layer 3 is 38mm; the thickness of the waterproof adhesive layer 4 is 0.6mm; the thickness of the adhesive layer 5 is 1.5mm.

[0053] Epoxy asphalt concrete in the epoxy asphalt concrete layer 2 is formed by mixing epoxy asphalt binder and asphalt mixture, and the mixing ratio is 6: 100, in parts by weight; the epoxy asphalt binder is made of epoxy The resin is heated to 83°C and mixed with epoxy asphalt binder heated to ...

Embodiment 2～4

[0074] Such as figure 1 Shown, a pavement structure of cement concrete bridge deck, the top of cement concrete bridge deck 1 is successively provided with epoxy asphalt concrete layer 2 and SMA13 asphalt concrete layer 3; Described cement concrete bridge deck 1 and epoxy asphalt concrete layer 2 are bonded by a waterproof bonding layer 4, and the epoxy asphalt concrete layer 2 and the SMA13 asphalt concrete layer 3 are bonded by a bonding layer 5;

[0075] The thickness and material parameters of each layer are shown in Table 18, and the others are the same as in Example 1.

[0076] The thickness and material parameter of each layer in table 18 embodiment 2~4

[0077]

[0078] Explanation: In the table, A represents epoxy asphalt binder, B represents asphalt mixture, and A:B represents the ratio of the two;

[0079] C represents epoxy resin, D represents base asphalt with curing agent for epoxy asphalt binder, C:D represents the ratio of epoxy resin and base asphalt with ...

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Abstract

The invention provides a pavement structure of a cement concrete bridge deck. An epoxy asphalt concrete layer (2) and an SMA13 asphalt concrete layer (3) are arranged above the cement concrete bridge deck (1) in sequence; the cement concrete bridge deck (1) is cohered with the epoxy asphalt concrete layer (2) by a waterproof bonding layer (4); and the epoxy asphalt concrete layer (2) is cohered with the SMA13 asphalt concrete layer (3) by a bonding layer (5). The scheme of the invention improves the high temperature stability and anti-fatigue property of the bridge deck pavement layer, and obtains complex balance on aspects such as low temperature crack resistance, deformation follow performance, use wear and the like of structure; in the scheme of the invention, the deformation adaptability is strong, and the fatigue life span is also very good; the combination scheme is technologically feasible, and has higher cost performance and the best combination property under the premise of no large differences among all indexes.

Description

technical field [0001] The invention belongs to the technical field of transportation engineering, and in particular relates to a pavement structure directly laid on the deck of a cement concrete bridge. Background technique [0002] Cement concrete bridge deck pavement refers to the protective surface layer paved on the cement concrete bridge deck in order to ensure that vehicles pass through the bridge deck safely and comfortably. The pavement layer is directly laid on the cement concrete slab. Under the influence of driving load, wind load, temperature change, earthquake and other factors, its force and deformation are far more complicated than that of highway pavement and airport pavement, so its strength and stability , fatigue durability, etc. have higher requirements. At the same time, due to the special location of the pavement, there are special requirements such as light weight, high cohesion, and water impermeability in terms of performance. Bridge deck pavement...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/12C04B26/26C09J195/00C09J163/00C09J9/00
Inventor 黄卫霍明赵永国钱振东陈团结李刚王建伟彭广银陈磊磊
Owner SOUTHEAST UNIV
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