Aqueous epoxy resin modified emulsified asphalt, and preparation method and application thereof

A technology of water-based epoxy resin and emulsified asphalt, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of insufficient bonding strength, poor high temperature stability, and poor low temperature flexibility, etc., to facilitate on-site construction, Good storage stability, the effect of improving the shear strength

Inactive Publication Date: 2016-10-05
上海龙孚材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problems of poor high-temperature stability, poor low-temperature flexibility, insufficient cohesive force strength, and complicated construction of the above-mentioned existing viscous oil, one of the purposes of the present invention is to provide a kind of cohesive force with higher strength, Good high temperature stability and low temperature flexibility, and emulsified asphalt that can be conveniently constructed on site

Method used

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  • Aqueous epoxy resin modified emulsified asphalt, and preparation method and application thereof
  • Aqueous epoxy resin modified emulsified asphalt, and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0053] 1. Preparation of emulsified asphalt: 500g of Sinopec Zhenhai 70# base asphalt, 25g of Ancamide 375A polyamide curing agent (from Air Products, USA), heated and mixed at 135°C, and then used EM-520 prepared in advance (Shanghai Longfu Material Co., Ltd.) Technology Co., Ltd. cationic asphalt emulsifier, 2.0% dosage) of 60 ℃ soap solution is fully mixed and emulsified in the colloid mill, and the emulsification time depends on the emulsification situation, usually 1 to 2 minutes;

[0054] 2. Place the prepared emulsified asphalt in a 60°C oven to cool down slowly, then let it stand at room temperature and cool to room temperature. Then mix it with 450g CYDW-112W50 modified water-based epoxy resin emulsion (from Baling Petrochemical, epoxy equivalent 1200-1850, solid content 50%) to form epoxy resin modified emulsified asphalt.

Embodiment 2

[0056] 1. Preparation of emulsified asphalt: Mix 500 g of Sinopec Zhenhai 70# base asphalt, 25 g of Ancamide 375A polyamide curing agent (from Air Products, USA), heat and mix evenly at 135°C, and then use pre-prepared EM-310 (Shanghai Longfu Materials Co., Ltd.) Technology Co., Ltd. cationic asphalt emulsifier, 0.8% dosage) of 60 ℃ soap solution is fully mixed and emulsified in the colloid mill, and the emulsification time depends on the emulsification situation, usually 1 to 2 minutes;

[0057] 2. Place the prepared emulsified asphalt in a 60°C oven to cool down slowly, then let it stand at room temperature and cool to room temperature. Then mix it evenly with 500g of water-based epoxy resin emulsion Ancarez AR550 (from Air Product Company of the United States, with an epoxy equivalent of 550) to form epoxy resin modified emulsified asphalt.

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Abstract

The invention discloses an aqueous epoxy resin modified emulsified asphalt, and a preparation method and an application thereof. The aqueous epoxy resin modified emulsified asphalt comprises 100 parts of emulsified asphalt, 10-300 parts of aqueous epoxy resin, and a curing agent accounting for 3-60% of the use amount of the epoxy resin. The modified emulsified asphalt obtained in the invention has high-temperature stability and low-temperature flexibility, and the bonding strength of the modified emulsified asphalt at a low temperature and a high temperature of 60DEG C is 2-6 times that of commercial common emulsified asphalt or SBR and SBS modified emulsified asphalt when used as road bonding oil. The aqueous epoxy resin modified emulsified asphalt is a single-component system, has excellent storage stability, can be directly applied in field, is simple to construct, can be mechanically constructed, and overcomes the disadvantage of wheel sticking of common or the SBR and SBS modified emulsified asphalt bonding oil in the construction process. The modified asphalt has good bonding performance with stones, concrete pavements and asphalt pavements, and can be widely applied to pavement maintenance or preventive maintenance.

Description

technical field [0001] The invention relates to the technical field of road engineering construction, in particular to emulsified asphalt for road engineering construction and a preparation process for the asphalt. Background technique [0002] The sticky course is the structure connecting the two surface layers of the road. It connects the upper and lower layers of the asphalt concrete into one. The quality of interlayer bonding is an important factor affecting the service life of asphalt pavement. As a structural layer, the sticky layer oil must have high strength, have good adhesion to the base concrete and asphalt mixture surface, and have certain high temperature stability. In order to avoid or reduce road problems such as interlayer slippage and shedding under large traffic loads. [0003] The asphalt pavement local repair technology with emulsified asphalt as the bonding material has many advantages such as wide application range, energy saving, pollution reduction, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/00C08J3/03
Inventor 陈婷婷韩开震吴德龙
Owner 上海龙孚材料技术有限公司
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