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Assembly type steel bridge super-tough durability prefabricated pavement layer structure

A pavement and durability technology, applied in the field of prefabricated steel bridge super-tough and durable prefabricated pavement structure, can solve the problem of difficult balance between high temperature performance and crack resistance, inability to coordinate pavement, and difficulty in pavement structure At the same time, it overcomes problems such as high temperature deformation and disease, and achieves the effects of eliminating quality variability, significant economic and social benefits, and convenient splicing.

Pending Publication Date: 2018-09-28
NANJING ROAD KEEPER TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, the pavement materials used in the pavement of steel bridge decks have not been able to coordinate the balance between the high temperature environment and the large deformation conditions that the pavement is subjected to, making it difficult for the pavement structure to overcome high temperature deformation and cracking damage at the same time
Therefore, it is necessary to apply super-tough resin concrete materials to overcome the shortcomings of traditional pavement structures that are difficult to balance high-temperature performance and crack resistance, and to achieve super-tough durability of pavement structures

Method used

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  • Assembly type steel bridge super-tough durability prefabricated pavement layer structure
  • Assembly type steel bridge super-tough durability prefabricated pavement layer structure
  • Assembly type steel bridge super-tough durability prefabricated pavement layer structure

Examples

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preparation example Construction

[0054] The present invention also improves a preparation method of super-toughness resin concrete, which comprises the following steps:

[0055] 1) Preparation of resin compound

[0056] Weigh all the materials in proportion, place the weighed bisphenol A epoxy resin, polymethyl methacrylate, polyolefin elastomer and polyamide resin in the mixing pot, heat to 100-160 ° C, stir for 1 After -3 hours, add fibrous wollastonite, nano-carbon fiber, and glass fiber to it, and continue stirring for 2-5 hours; add curing agent and stir evenly, and place it for 5-10 minutes to make a resin compound;

[0057] 2) Preparation of resin cement

[0058] Put the fly ash and calcium carbonate powder into the resin compound and stir, add additives according to the ratio, stir for 5 minutes to 30 minutes, and mix evenly to make resin cement;

[0059] 3) Preparation of resin mortar

[0060] Mix quartz sand of different particle sizes into resin cement and stir evenly to prepare resin mortar;

...

Embodiment 1

[0065] The super-toughness resin concrete comprises the following raw materials in parts by weight:

[0066]

[0067]

[0068] Wherein, the filler is a mixture of fly ash, gravel and calcium carbonate powder, and the auxiliary agent includes one or more of curing agent, accelerator, toughening agent, water reducer, defoamer and coupling agent.

Embodiment 2

[0070] The super-toughness resin concrete comprises the following raw materials in parts by weight:

[0071]

[0072] Wherein, the filler is a mixture of fly ash, gravel and calcium carbonate powder, and the auxiliary agent includes one or more of curing agent, accelerator, toughening agent, water reducer, defoamer and coupling agent.

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Abstract

The invention discloses an assembly type steel bridge super-tough durability prefabricated pavement layer structure. The structure comprises a steel bridge precast beam section, a steel bridge deck slab, a pavement section bonding layer, a prefabricated pavement layer and a splicing piece used for splicing the pavement layer structure, all of which are sequentially arranged from bottom to top. Theinside of the prefabricated pavement layer is paved with a reinforcing mesh frame, and protruding connecting pieces extending out of the prefabricated pavement layer along the side portions are arranged on the side portions of the reinforcing mesh frame. The two ends of the steel bridge precast beam section extend out of the prefabricated pavement layer to form assembly splicing sections. The splicing piece is arranged between the assembly splicing sections of two adjacent pavement layer structures to form a splicing space. The splicing piece is used for connecting the protruding connecting pieces on the adjacent to-be-spliced pavement layer structures. By the adoption of the assembly type steel bridge super-tough durability prefabricated pavement layer structure, a super-tough resin bonding layer and super-tough resin concrete serve as pavement layer structure materials, and super-tough durability of the pavement layer can be achieved.

Description

technical field [0001] The invention relates to the field of road and bridge engineering, in particular to a super-tough and durable prefabricated pavement structure of an assembled steel bridge. Background technique [0002] As the upper structure of the bridge, the pavement layer undertakes the function of providing a traffic environment for pedestrians and vehicles. Its road performance, driving comfort and service life directly affect the society's evaluation and evaluation of the bridge driving quality. judge. In the traditional pavement construction, the pavement is constructed after the overall structure of the bridge is completed using road construction equipment and techniques. The on-site construction period is long, and it is greatly affected by the environmental climate. Construction will affect the steel bridge construction process and traffic opening time. Moreover, due to the many factors affecting the site construction, the conditions change greatly, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12
CPCE01D19/125
Inventor 赵岩荆周岚倪富健徐宏李小鹏黄舒文
Owner NANJING ROAD KEEPER TECH
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