Waterborne epoxy modified emulsified asphalt concrete for steel bridge surface and preparation method thereof

A technology of emulsified asphalt and water-based epoxy, which is applied in the field of building materials, can solve the problems of large-scale popularization and application limitations, high cost of epoxy asphalt concrete, and long maintenance time, and achieve high and low temperature stability and excellent water stability. The effect of toughness and long service life

Active Publication Date: 2011-09-07
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the cost of epoxy asphalt concrete is too high and the curing time is long
The above successful programs abroad are affected by ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of water-based epoxy modified emulsified asphalt concrete for steel bridge deck, which is mainly composed of coarse aggregate, fine aggregate, filler, water-based epoxy resin modified emulsified asphalt, and cement, and the mass ratio of each raw material is 100: 30 : 15: 15: 5, the water-based epoxy resin modified emulsified asphalt is mainly prepared from modified emulsified asphalt with a mass ratio of 100:5:2:2: water-based epoxy resin: epoxy curing agent: stabilizer raw materials become.

[0028] The modified emulsified asphalt is cationic medium-cracked modified emulsified asphalt produced by Wuhan Luxiang Highway Technology Co., Ltd.

[0029] The water-based epoxy resin is water-based epoxy emulsion GEM03 produced by Shanghai Lvjia Water-based Paint Co., Ltd., and its characteristic parameters are shown in Table 1.

[0030] Table 1

[0031] Exterior

Viscosity (25℃ / mPa.S)

Active ingredient content / %

epoxy equivalent

Density (g / ml)...

Embodiment 2

[0049] A water-based epoxy modified emulsified asphalt concrete for a steel bridge deck, which is mainly composed of coarse aggregate, fine aggregate, filler, water-based epoxy resin modified emulsified asphalt, and cement, and the mass ratio of each raw material is 100:40 :20:16:6, the water-based epoxy resin modified emulsified asphalt is mainly prepared from modified emulsified asphalt with a mass ratio of 100:7:3:4: water-based epoxy resin: epoxy curing agent: stabilizer raw materials become.

[0050] The modified emulsified asphalt is cationic slow-cracking modified emulsified asphalt produced by Wuhan Luxiang Highway Technology Co., Ltd.

[0051] The water-based epoxy resin is water-based epoxy emulsion GEM03 produced by Shanghai Lujia Water-based Paint Co., Ltd.

[0052] The epoxy curing agent is water-based epoxy curing agent GCA02 produced by Shanghai Lvjia Water-based Coatings Co., Ltd., and its characteristic parameters are shown in Table 3.

[0053] table 3

[0...

Embodiment 3

[0069] A water-based epoxy modified emulsified asphalt concrete for a steel bridge deck, which is mainly composed of coarse aggregate, fine aggregate, filler, water-based epoxy resin modified emulsified asphalt, and cement, and the mass ratio of each raw material is 100:45 : 20: 20:8, the water-based epoxy resin modified emulsified asphalt is mainly prepared from modified emulsified asphalt with a mass ratio of 100:8:4:6: water-based epoxy resin: epoxy curing agent: stabilizer raw materials become.

[0070] The modified emulsified asphalt is cationic slow-cracking modified emulsified asphalt produced by Wuhan Luxiang Highway Technology Co., Ltd.

[0071] The water-based epoxy resin is water-based epoxy emulsion GEM02 produced by Shanghai Lvjia Water-based Paint Co., Ltd., and its characteristic parameters are shown in Table 4.

[0072] Table 4

[0073] Exterior

Viscosity (25℃ / mPa.S)

Active ingredient content / %

epoxy equivalent

Density (g / ml)

M...

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Abstract

The invention provides a waterborne epoxy modified emulsified asphalt concrete for a steel bridge surface and a preparation method thereof. The waterborne epoxy modified emulsified asphalt concrete for the steel bridge surface is prepared by the following steps of: adding waterborne epoxy resin, a curing agent, and a stabilizing agent into modified emulsified asphalt, continuously stirring until the mixture is uniform, and shearing to obtain waterborne epoxy resin modified emulsified asphalt emulsion; and stirring coarse aggregate and fine aggregate in a container, adding the waterborne epoxyresin modified emulsified asphalt and then stirring, adding a filler and then mixing and stirring, and adding cement and stirring to obtain the waterborne epoxy modified emulsified asphalt concrete. A paving material prepared by the method has the characteristics of environment-friendliness, low volatile organic compound (VOC), low energy consumption, high bonding strength with a steel plate, high cryogenic stabilization, excellent water stability performance, high tenacity, and high fatigue resistance performance.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a water-based epoxy-modified emulsified asphalt concrete for a steel bridge deck and a preparation method thereof. Background technique [0002] The pavement materials of long-span steel box girder bridges have always been a hot spot and a difficult point in the world. The bridge deck pavement is directly laid on the steel plate. Under the influence of driving load, wind load, temperature change, earthquake and other factors, its stress and deformation are far more complicated than that of highway pavement or airport pavement, so its strength and deformation stability , fatigue durability, etc. have higher requirements. [0003] Long-span steel bridges have a large amount of deformation under the action of temperature and load, and steel box girders have good temperature conductivity and are easily affected by changes in external temperature. In the high ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B24/28
Inventor 丁庆军沈凡黄绍龙孙政胡寅彭馨彦
Owner WUHAN UNIV OF TECH
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