Waterproof and anti-corrosion construction technology for steel box girder bridge deck paved with double-layer SMA (stone mastic asphalt)

A construction technology, steel box girder technology, applied in bridges, buildings, bridge parts, etc., can solve the problems of bridge deck and asphalt pavement bonding, high storage cost, high cost, etc., to improve structural durability and economical Benefits, efficiency-enhancing effects

Inactive Publication Date: 2019-05-28
江门市政企业集团有限公司
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction of this part mainly solves two problems: one is the waterproof problem, and the other is the bonding problem between the bridge deck and the asphalt pavement under the harsh environment
At present, materials such as high-viscosity modified asphalt and epoxy waterproof are usuall...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waterproof and anti-corrosion construction technology for steel box girder bridge deck paved with double-layer SMA (stone mastic asphalt)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be further described below in conjunction with specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not as a limitation to the present invention.

[0016] like figure 1 Shown, a kind of paving double-deck SMA asphalt steel box girder deck waterproof and anticorrosion construction technique of the present embodiment comprises the following steps:

[0017] Step 1. Carry out sandblasting and derusting to the steel box girder deck 1, and spray an anticorrosion layer 2 on the steel box girder deck after derusting, and the anticorrosion layer is an epoxy zinc-rich primer;

[0018] Step 2: Lay a 1cm-thick waterproof layer 3 on the anticorrosion layer 2. The waterproof layer is a mixed slurry of coating-resistant ET slurry and black corundum. 1-3mm selected graded black corundum aggregate;

[0019] Step 3, laying the first layer of modified emulsified asphalt adhesiv...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a waterproof and anti-corrosion construction technology for a steel box girder bridge deck paved with double-layer SMA (stone mastic asphalt). The technology comprises following steps: performing sandblast derusting on the steel box girder bridge deck; spraying an anti-corrosion coating; paving a waterproof layer; paving a first modified emulsified asphalt bonding layer; pouring an SMA10 asphalt concrete layer which is 4 cm thick; paving a second modified emulsified asphalt bonding layer; pouring an SMA13 asphalt concrete layer which is 4 cm thick. Compared with the prior art, one new paving construction technology is provided for the steel box girder bridge deck which is paved with the double-layer SMA and has a smaller area range; with the adoption of a coating-resistant ET material for paving the waterproof layer, project cost is reduced, and structural durability is improved; with the adoption of the construction technology, production cost can be saved, efficiency is improved, and quite good economic benefit is created.

Description

technical field [0001] The invention relates to the field of paving and waterproofing of steel box girders, in particular to a waterproof and anti-corrosion construction technology for paving double-layer SMA asphalt steel box girder bridge decks. Background technique [0002] Two layers of SMA modified asphalt mixture are directly paved on the urban steel box girder bridge deck, and the waterproof and anti-corrosion layer of the bridge deck is particularly important. The steel box girder pavement waterproof layer is an important structural layer that fixes the steel box girder steel plate and the bridge deck pavement as a whole, allowing the structure to bear the force together, and preventing the steel from being disturbed by the external environment and affecting the durability of the structure. The construction of this part mainly solves two problems: one is the waterproof problem, and the other is the bonding problem between the bridge deck and the asphalt pavement unde...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E01D21/00E01D19/12
Inventor 韩德元何成林赵胜豪何培坚罗红颖林学雄
Owner 江门市政企业集团有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap