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A resin combined ultra-high performance concrete pavement structure and construction method

An ultra-high-performance concrete technology, applied in the direction of erecting/assembling bridges, bridges, bridge parts, etc., can solve the problems of steel bridge deck safety hazards, burrs, maintenance and repair effects, etc., to eliminate damage, good toughness and durability, Effect of improving bending cracking resistance

Active Publication Date: 2021-10-08
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual operation process, it is found that initial defects such as pores and burrs will be produced during the rivet welding process on the steel bridge deck. cause greater impact

Method used

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  • A resin combined ultra-high performance concrete pavement structure and construction method
  • A resin combined ultra-high performance concrete pavement structure and construction method
  • A resin combined ultra-high performance concrete pavement structure and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The construction method of resin combined ultra-high performance concrete pavement structure, calculated according to the parts by mass, includes the following steps:

[0056] S1. Carry out sandblasting and derusting cleaning treatment on the steel panel to obtain a steel panel base layer with a cleanliness of Sa2.5 or higher and a roughness of 60-150 μm;

[0057] S2. Prepare high-tough resin by 65 parts of bisphenol epoxy resin, 16 parts of polyamide curing agent, 10 parts of butyl glycidyl ether reactive diluent, 5 parts of nitrile rubber toughening agent and 5 parts of quartz powder reinforcing agent, steel Within 2 hours after the sandblasting and derusting of the panel, coat high-toughness resin on the surface of the steel panel base, spread 3-5mm single-size basalt gravel, and bond shear nails synchronously; the coating amount of high-toughness resin adhesive is 1kg / m 2 , single-size crushed stone spreading rate 3kg / m 2 ;The shear nails are arranged on the upper ...

Embodiment 2

[0068] The resin-combined ultra-high-performance concrete pavement construction method, calculated according to the parts by mass, includes the following steps:

[0069] S1. Carry out sandblasting and derusting cleaning treatment on the steel panel to obtain a steel panel base layer with a cleanliness of Sa2.5 or higher and a roughness of 60-150 μm;

[0070] S2. Prepare high-tough resin by 68 parts of bisphenol epoxy resin, 12 parts of butyl glycidyl ether reactive diluent, 14 parts of polyamide curing agent, 3 parts of nitrile rubber toughening agent and 3 parts of quartz powder reinforcing agent, steel Coating high-toughness resin on the base surface of the steel panel within 2 hours after the sandblasting and derusting of the panel, spreading 3-5mm single-size crushed stone, and synchronously bonding shear nails; the coating amount of high-toughness resin adhesive is 1.8kg / m 2 , single-size crushed stone spreading rate 4kg / m 2 ;The shear nails are arranged on the upper par...

Embodiment 3

[0082] The resin-combined ultra-high-performance concrete pavement construction method, calculated according to the parts by mass, includes the following steps:

[0083] S1. Carry out sandblasting and derusting cleaning treatment on the steel panel to obtain a steel panel base layer with a cleanliness of Sa2.5 or higher and a roughness of 60-150 μm;

[0084] S2. Prepare high-tough resin by 70 parts of bisphenol epoxy resin, 15 parts of butyl glycidyl ether reactive diluent, 16 parts of polyamide curing agent, 2 parts of nitrile rubber toughening agent and 2 parts of quartz powder reinforcing agent, steel Coating high-toughness resin on the base surface of the steel panel within 2 hours after the sandblasting and derusting of the panel, spreading 3-5mm single-grain gravel, and synchronously bonding shear nails; the coating amount of high-toughness resin adhesive is 1.5kg / m 2 , single-size crushed stone spreading rate kg / m 2 ;The shear nails are arranged on the upper part of th...

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Abstract

The invention relates to the technical field of steel bridge deck pavement, in particular to a resin-combined ultra-high performance concrete pavement structure and a construction method, which successively include a steel panel base layer, a waterproof anti-pull anti-shear composite layer, a 1-2 mm wet Adhesive epoxy resin layer, 2~5cm thick high-density fiber concrete pavement layer, 2~5cm high toughness resin mortar pavement layer. The structure uses ultra-high-performance concrete as the pavement layer to reinforce the steel bridge deck. At the same time, it is mixed with composite chopped fibers and mineral fiber mesh or steel mesh to further enhance the toughness and crack resistance of the concrete pavement; it is cured by resin The rivets are placed on the steel panel to strengthen the overall interlayer shear connection, eliminate the stress damage caused by conventional rivet welding to the steel panel, and provide convenience for the later maintenance and repair of the pavement layer; the wet concrete that is simultaneously cured with the ultra-high performance concrete pavement structure is adopted. The adhesive layer can further improve the bonding ability between the pavement layers and ensure the overall synergy of the pavement structure.

Description

technical field [0001] The invention relates to the technical field of steel bridge deck pavement, in particular to a resin-combined ultra-high-performance concrete pavement structure and a construction method. Background technique [0002] The structural form of steel box girder is favored by bridge engineers because of its light weight, high torsional rigidity, and convenient fabrication and construction, and it is widely used in the construction of modern long-span bridges. However, when the domestic traditional epoxy asphalt mixture and poured asphalt are used as the orthotropic steel bridge deck pavement, due to the structure of the steel bridge deck itself and the influence of temperature changes, the steel bridge deck is prone to fatigue under long-term driving loads Problems with cracking and pavement damage. In order to solve the above problems, high-performance concrete has been gradually applied as a steel bridge deck pavement material due to its good mechanical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/12E01D21/00E01D19/08C04B28/04C04B26/20
CPCC04B26/20C04B28/04E01D19/083E01D19/125E01D21/00C04B18/146C04B14/06C04B14/48C04B14/46C04B24/24C04B24/281C04B24/023C04B24/2652C04B18/12
Inventor 张辉张志祥潘友强陈李峰罗瑞林崔磊关永胜
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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