Light cold-mixed resin steel bridge deck pavement material

A technology for paving materials and steel bridge decks, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of substantive development gaps in pavement structures and materials, and achieve short maintenance time, improved tensile strength, and improved durability. Effect

Inactive Publication Date: 2014-04-23
JSTI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such research is limited to theoretical calculations, and the substantive development of pavement structures and materials is almost blank

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Lightweight steel bridge deck pavement material: composed of cold mix resin, mineral aggregate and fiber. The weight ratio of cold mix resin to mineral aggregate is 12:100. The cold mix resin adopts the ERC type binder produced by Yanning New Material Company. The composition of mineral materials is: 20% light high-strength coarse aggregate (particle size 5-13mm, such as Shanghai Shenwei 800 grade high-strength shale ceramsite), 20% ordinary basalt fine aggregate (particle size 3-5mm ), 43% ordinary basalt fine aggregate (particle size 0-3mm) and 17% limestone powder. Among them, the particle size greater than 9.5mm accounted for 3 %, particle size less than 4.75mm accounted for 75%, particle size less than 2.36mm accounted for 59 %, particle size less than 0.6mm accounted for 30%, particle size less than 0.075mm accounted for 18 %. The steel fibers are short steel fibers with a length of 5-15 mm and a diameter of 0.1 mm, and the dosage is 5 / 1000 of the mixture...

Embodiment 2

[0022] Lightweight steel bridge deck pavement material: composed of cold mix resin, mineral aggregate and fiber. The weight ratio of cold mix resin to mineral aggregate is 15:100. The cold mix resin adopts the ERC type binder produced by Yanning New Material Company. The composition of mineral materials is: 35% light high-strength coarse aggregate (particle size 3-13mm, such as Shanghai Shenwei 800 grade high-strength shale ceramsite), 47% ordinary basalt fine aggregate (particle size 0-3mm ), 15% limestone powder and 3% diatomaceous earth. The steel fibers are short steel fibers with a length of 5-15 mm and a diameter of 0.12 mm, and the dosage is 10 / 1000 of the mixture.

[0023] Preparation and paving process: At room temperature, mix cold-mixed resin, mineral materials and fibers in proportion, mix evenly, spread on the steel bridge surface, and use a road roller to compact and level it to form a concrete pavement layer; After the pavement layer is maintained, it wil...

Embodiment 3

[0025] Lightweight steel bridge deck pavement material: composed of cold mix resin, mineral aggregate and fiber. The weight ratio of cold mix resin to aggregate is 20:100. The cold mix resin is composed of A component and B component; A component contains the following components in parts by weight: E51 epoxy resin 80 parts, butyl glycidyl ether 9 parts, titanate coupling agent 2 parts; B The components include the following components in parts by weight: 90 parts of T31 modified amine curing agent, 8 parts of liquid polysulfide rubber, 2 parts of DBP phosphobenzenedibutyric acid toughening agent, 4 parts of CYH-277 epoxy toughening agent, 4 parts of trimer curing accelerator. Mineral material composition: 45% light high-strength coarse aggregate (particle size 3-13mm, such as Shanghai Shenwei 800 grade high-strength shale ceramsite), 35% ordinary basalt fine aggregate (particle size 0-3mm ), 15% limestone powder and 5% diatomaceous earth. The fibers are steel fibers wi...

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Abstract

The invention provides a light cold-mixed resin steel bridge deck pavement material. The steel bridge deck pavement material consists of cold-mixed resin, mineral aggregate and fibers, wherein the mass ratio of the cold-mixed resin to the mineral aggregate is (11-20):100; the mineral aggregate comprises light high-strength coarse aggregate, fine aggregate and mineral powder; the mass percentage of the light high-strength coarse aggregate in the mineral aggregate is 20-45 percent; the fibers are chopped steel fibers, and the total mass is 0.5-2 percent of the mass of the steel bridge deck pavement material. The steel bridge deck pavement material is low in density and high in performance, and can play a role in reducing the constant load on a steel deck on the premise of keeping the thickness of a bridge deck pavement structure invariable; or the rigidity of a deck system is enhanced by increasing the thickness of a pavement layer under the condition of keeping the constant load on the deck invariable.

Description

technical field [0001] The invention relates to a steel bridge deck pavement material, in particular to a high-toughness lightweight resin concrete steel bridge deck pavement material. Background technique [0002] In the early 1990s, with the rapid economic development, a large number of orthotropic plate steel bridges across rivers, rivers, seas, railways and highways were successively built in China. The scale of bridge construction has now ranked first in the world. By the end of the year, more than 150 bridges will be built on the Yangtze River alone. Because the orthotropic plate steel bridge has the advantages of light weight, large spanning capacity, high bearing capacity, and convenient and quick construction, in recent years, my country has developed large-span bridges across rivers, rivers, and seas, as well as railways, highways, etc. In the construction of over-the-line bridges, more and more light-weight orthotropic plate steel bridge structures are used. ...

Claims

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Application Information

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IPC IPC(8): E01D19/12E01C7/30
Inventor 张辉潘友强张志祥张健朱雷
Owner JSTI GRP CO LTD
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