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A light-weight cold-mixed resin steel bridge deck pavement material

A technology for pavement materials and steel bridge decks, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problems of pavement structures and material material development gaps, etc., and achieve short maintenance time, improved fatigue life, and low density Effect

Inactive Publication Date: 2015-12-02
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 decking material: composed of cold mix resin, mineral aggregate and fiber. The weight ratio of cold mix resin and mineral material is 12:100. The cold mix resin adopts the ERC type binder produced by Yanning New Material Company. The mineral composition is: 20% of light and high-strength coarse aggregate (particle size is 5-13mm, such as Shanghai Shenwei 800 high-strength shale ceramsite), 20% of ordinary basalt fine aggregate (particle size is 3-5mm) ), 43% of ordinary basalt fine aggregate (particle size is 0-3mm) and 17% of limestone ore powder. Among them, the particle size larger than 9.5mm accounts for 3 %, the particle size less than 4.75mm accounted for 75%, the particle size less than 2.36mm accounted for 59 %, the particle size less than 0.6mm accounted for 30%, the 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...

Embodiment 2

[0022] Lightweight steel bridge decking material: composed of cold mix resin, mineral aggregate and fiber. The weight ratio of cold mix resin and mineral material is 15:100. The cold mix resin adopts the ERC type binder produced by Yanning New Material Company. The mineral composition is as follows: 35% lightweight high-strength coarse aggregate (particle size is 3-13mm, such as Shanghai Shenwei 800 high-strength shale ceramsite), 47% ordinary basalt fine aggregate (particle size is 0-3mm) ), 15% limestone mineral 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 ten thousandths of the mixture.

[0023] Preparation and paving process: at room temperature, mix the cold-mixed resin, mineral material and fiber in proportion, and after stirring evenly, spread it on the steel bridge deck, and use a road roller to compact and level it to form a concrete pavement layer; After the pavement...

Embodiment 3

[0025] Lightweight steel bridge decking 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 component A and component B; component A includes the following components by weight: 80 parts of E51 epoxy resin, 9 parts of butyl glycidyl ether, and 2 parts of titanate coupling agent; 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 phosphophthalic acid toughening agent, 4 parts of CYH-277 epoxy toughening agent, 4 parts of trimerization curing accelerator. The mineral composition is: 45% of light and high-strength coarse aggregate (particle size is 3-13mm, such as Shanghai Shenwei 800 high-strength shale ceramsite), 35% of ordinary basalt fine aggregate (particle size is 0-3mm) ), 15% limestone mineral powder and 5% diatomaceous earth. The fibers are steel...

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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. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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