A water-borne epoxy resin-emulsified bitumen micro-surfacing mixture and a preparing method thereof

A technology of water-based epoxy resin and micro-surfacing mixture, which is applied in the field of road engineering, can solve the problems of caking, destruction of cationic emulsified asphalt balance system, emulsification effect failure, etc., and achieve excellent emulsification performance, compatibility and stability Good, the effect of improving road driving quality

Active Publication Date: 2016-03-30
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the preparation process of cationic emulsified asphalt, the pH needs to be adjusted to about 2-3, and the addition of water-based epoxy resin emulsion containing amine curing agent will destroy the equilibrium system of cationic emulsified asphalt, resulting in failure of emulsification effect and caking Obvious phenomenon

Method used

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  • A water-borne epoxy resin-emulsified bitumen micro-surfacing mixture and a preparing method thereof
  • A water-borne epoxy resin-emulsified bitumen micro-surfacing mixture and a preparing method thereof
  • A water-borne epoxy resin-emulsified bitumen micro-surfacing mixture and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. Preparation of Waterborne Epoxy Resin Emulsion

[0045] Mix 100g of water-based epoxy resin and 150g of diethylenetriamine, and use a low-speed stirrer to fully stir the mixed emulsion for 7.5 minutes to make the mixture uniform.

[0046] Wherein, waterborne epoxy resin is standard liquid epoxy resin, and its solid content is 75%;

[0047] Wherein, the solid content of diethylenetriamine is 50%.

[0048] 2. Preparation of water-based epoxy emulsified asphalt

[0049] Pour 50g of water-based epoxy resin emulsion into 120g of anionic emulsified asphalt and stir evenly to obtain water-based epoxy emulsified asphalt.

[0050]3. Preparation of Microsurfacing Mix

[0051] Prepare materials according to the following weight ratio:

[0052] Mineral material 1000g

[0053] 80g of water

[0054] Water-based epoxy emulsified asphalt 170g

[0055] Add water to the mineral material, stir evenly at room temperature, then add water-based epoxy resin emulsified asphalt, and c...

Embodiment 2

[0058] 1. Preparation of Waterborne Epoxy Resin Emulsion

[0059] Mix 10g of water-based epoxy resin and 20g of polyamide-650, and use a low-speed stirrer to fully stir the mixed emulsion for 5 minutes to make the mixture uniform.

[0060] Wherein, water-based epoxy resin is water-soluble epoxy resin, and its solid content is 50%;

[0061] Among them, the solid content of polyamide-650 is 70%.

[0062] 3. Preparation of water-based epoxy emulsified asphalt

[0063] Pour 10g of water-based epoxy resin emulsion into 120g of anionic emulsified asphalt and stir evenly to obtain water-based epoxy emulsified asphalt.

[0064] 4. Preparation of Microsurfacing Mix

[0065] Prepare materials according to the following weight ratio:

[0066]

[0067] Add cement to the mineral material, stir evenly at room temperature, then add water, continue to stir to form a uniform mixture, then add water-based epoxy resin emulsified asphalt, continue to stir for 30 seconds, and the product is...

Embodiment 3

[0070] 1. Preparation of Waterborne Epoxy Resin Emulsion

[0071] Mix 10g of water-based epoxy resin and 10g of N,N'-dihydroxyethyldiethylenetriamine, then add 30g of water and use a low-speed stirrer to fully stir the mixed emulsion for 10 minutes to make the mixture uniform.

[0072] Wherein, the water-based epoxy resin is a water-soluble epoxy resin, and its solid content is 100%;

[0073] Among them, the solid content of N,N'-dihydroxyethyldiethylenetriamine is 30%.

[0074] 4. Preparation of water-based epoxy emulsified asphalt

[0075] Pour 10g of water-based epoxy resin emulsion into 100g of anionic emulsified asphalt and stir evenly to obtain water-based epoxy emulsified asphalt.

[0076] 5. Preparation of Microsurfacing Mix

[0077] Prepare materials according to the following weight ratio:

[0078]

[0079] Add the mineral fiber to the mineral material, stir evenly at room temperature, then add water, continue to stir to form a uniform mixture, then add water-...

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Abstract

The invention discloses a water-borne epoxy resin-emulsified bitumen micro-surfacing mixture. The micro-surfacing mixture comprises following raw materials by weight: 100 parts of mineral aggregate, 10-15 parts of anionic emulsified bitumen, 0.5-12 parts of a water-borne epoxy resin emulsion and 6-11 parts of water. A preparing method of the micro-surfacing mixture is also disclosed. The method includes preparing the mineral aggregate, mixing the water-borne epoxy resin emulsion and the emulsified bitumen to obtain emulsified bitumen modified with water-borne epoxy resin, adding the water into the prepared mineral aggregate, adding the emulsified bitumen modified with the water-borne epoxy resin, fully stirring and curing, or the method includes preparing the mineral aggregate, adding the water into the prepared mineral aggregate, adding the water-borne epoxy resin emulsion and the emulsified bitumen, fully stirring and curing. The prepared micro-surfacing mixture is good in adhesiveness with stone, good in compatibility with the emulsified bitumen, good in stability, and capable of greatly improving wear resistance, resistance to water damage and rutting resistance of micro-surfacing and prolonging service lifetime of a road surface.

Description

technical field [0001] The invention belongs to the field of road engineering, in particular to a water-based epoxy resin emulsified asphalt micro-surfacing mixture and a preparation method thereof. Background technique [0002] After several years of normal operation of the expressway, ruts and cracks will form on some road surfaces. Although the pavement function will not be affected temporarily, if it is not dealt with in time, the performance of the pavement will be reduced and the service life will be shortened. [0003] Micro-surfacing is the highest form of emulsified asphalt slurry overlay. It is a preventive maintenance technical measure developed on the basis of slurry seal. It is suitable for preventive maintenance of important traffic roads such as expressways and urban trunk lines , airport runways, etc. Micro-surfacing can improve the anti-slip ability of the road surface, repair mild unevenness and rutting, prevent water seepage, prevent aging and loosening o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26
Inventor 季节曹东伟张艳君许鹰丁贺权李盈富张海燕
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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