Method for paving resin filling type asphalt concrete steel box-beam bridge deck combined structure

A technology of asphalt concrete and composite structure, which is applied in the direction of bridges, building components, bridge parts, etc., and can solve the problems of difficult control, high low-temperature stiffness of epoxy resin, and high cost

Active Publication Date: 2008-06-18
WUHAN MUNICIPAL CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, epoxy resin has high stiffness at low temperature and is easy to crack at low temperature, and the construction is more complicated and difficult to control, and the materials and paving technology are completely imported from abroad, so the cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A composite structure pavement method for steel box girder bridge deck pavement, it comprises the steps:

[0040] 1) First, sandblasting and derusting treatment is carried out on the steel box girder deck steel plate;

[0041] 2) Preparation of materials:

[0042] 1) Preparation of high viscosity modified asphalt:

[0043](1) Selection of raw materials: high-viscosity modified asphalt is composed of styrene-butadiene-styrene block copolymer (SBS), activated rubber powder, compatibilizing resin, antioxidant and base asphalt; base asphalt, styrene - The mass ratio of butadiene-styrene block copolymer, activated rubber powder, compatibilizing resin, and antioxidant is 100:10.6:3.7:2.5:0.3; wherein, the compatibilizing resin is selected from rosin glycerin resin, and the antioxidant is selected from charcoal Black, the base asphalt is AH-70 heavy traffic asphalt;

[0044] (2) The specific preparation steps are: melt the base asphalt, mix it with styrene-butadiene-styrene...

Embodiment 2

[0062] A method for paving a composite structure of a resin poured asphalt concrete steel box girder bridge deck, comprising the following steps:

[0063] 1) First, sandblasting and derusting treatment is carried out on the steel box girder deck steel plate;

[0064] 2) Preparation of materials:

[0065] 1) Preparation of high viscosity modified asphalt:

[0066] (1) Selection of raw materials: high-viscosity modified asphalt is composed of styrene-butadiene-styrene block copolymer (SBS), activated rubber powder, compatibilizing resin, antioxidant and base asphalt; base asphalt, styrene - The mass ratio of butadiene-styrene block copolymer, activated rubber powder, compatibilizing resin, and antioxidant is 100:7.4:2.2:2.4:0.2; wherein, the compatibilizing resin is selected from terpene resin, and the antioxidant is selected from lead , the base asphalt is AH-70 heavy traffic asphalt;

[0067] (2) The specific preparation steps are: melt the base asphalt, mix it with styrene...

Embodiment 3

[0085] A method for paving a composite structure of a resin poured asphalt concrete steel box girder bridge deck, comprising the following steps:

[0086] 1) First, sandblasting and derusting treatment is carried out on the steel box girder deck steel plate;

[0087] 2) Preparation of materials:

[0088] 1) Preparation of high viscosity modified asphalt:

[0089] (1) Selection of raw materials: high-viscosity modified asphalt is composed of styrene-butadiene-styrene block copolymer (SBS), activated rubber powder, compatibilizing resin, antioxidant and base asphalt; base asphalt, styrene -The mass ratio of butadiene-styrene block copolymer, activated rubber powder, compatibilizing resin and antioxidant is 100: 14.5: 7.6: 6.7: 0.5; wherein, the compatibilizing resin is selected from petroleum resin, and the antioxidant is selected from zinc, The base asphalt is AH-90 heavy traffic asphalt;

[0090] (2) The specific preparation steps are: melt the base asphalt, mix it with sty...

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Abstract

The present invention relates to a paving method of the paving layer of the bridge deck of a steel box girder bridge. A resin infusion type paving method of the composite structure of the asphalt concrete steel box girder bridge deck includes three steps: (1) the sand blasting and the derusting of the steel plates of the steel box girder bridge deck; (2) the preparation of materials: (a) the preparation of high-viscosity modified asphalt; (b) mineral aggregate gradation; (c) the preparation of large pored asphalt concrete; (d) the preparation of thermoset resin grouting material; (3) The pavement of the paving layer of the bridge deck: (a) The large pored asphalt concrete is paved on the steel plates of the steel box girder bridge deck, the pavement thickness is 2cm to 4cm, and after final pressure, a large pored asphalt concrete skeleton layer is formed; (b) While the large pored asphalt concrete skeleton layer is still in a hot state, the thermoset resin grouting material is grouted into the large pored asphalt concrete skeleton layer; (c) After the maintenance of three days, a layer of bonding oil is sprinkled, and an asphalt abrasion surface layer with the thickness of 4cm is paved. The paving method is characterized in good interface cohesive property and simple and convenient construction process.

Description

technical field [0001] The invention belongs to the field of material science and engineering, and in particular relates to a pavement method for a steel box girder bridge deck pavement layer. Background technique [0002] At present, steel box girder bridges are more and more favored by developers and designers due to their significant advantages such as light weight and economy, especially for long-span bridges, and steel box girder bridge deck pavement technology has also been developed. However, as the number of vehicles continues to increase, especially in China, there are more heavy-duty trucks, and various violations and overloading phenomena are common. The traffic load of the entire national road network increases, and the existing steel box girder bridges The surface pavement plan has gradually exposed the problems of debonding of the steel plate and the pavement, cracks in the pavement, and the movement of the pavement under heavy loads. So far, the following thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12C08L95/00C08K3/00C08L53/00C08L21/00
Inventor 丁庆军胡曙光黄修林黄绍龙吕林女何永佳刘新权方杨王晓磊吴学伟张荣昆
Owner WUHAN MUNICIPAL CONSTR GROUP
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