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High-performance epoxy bitumen mixture easy to construct and maintain and preparation method thereof

A technology of epoxy asphalt and mixture, which is applied in building insulation materials, building components, buildings, etc., can solve the problems of long reaction time, complicated construction technology, and degradation of bridge deck performance, and achieve excellent mechanical properties and simple construction technology , the effect of increasing compatibility

Inactive Publication Date: 2012-07-18
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This series of epoxy asphalt uses carboxylic acid as the curing agent. The biggest feature of this system is that the curing reaction is slow and the reaction time is long. days, therefore, the epoxy asphalt pavement with disease can no longer be repaired with this series of materials
In addition, the construction technology of epoxy asphalt mixture in the United States is relatively complicated, and the requirements for time and temperature during construction are also very strict, making the construction difficult; Mistakes or poor construction control, or poor paving and compaction caused poor stability, and insufficient maintenance time after paving, all of which will lead to a decline in the performance of epoxy asphalt pavement or bridge decks or even serious diseases. Seriously affected the normal use of the bridge

Method used

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  • High-performance epoxy bitumen mixture easy to construct and maintain and preparation method thereof
  • High-performance epoxy bitumen mixture easy to construct and maintain and preparation method thereof
  • High-performance epoxy bitumen mixture easy to construct and maintain and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054]Embodiment 1: Weigh 100 parts (parts by mass, the same below) hydroxyl-terminated polybutadiene liquid rubber (HTPB) (provided by Zibo Qilu Ethylene Chemical Co., Ltd.), and add 20 parts of toluene diisocyanate (TDI) respectively (German BASF company ) and 0.5 parts of butyl ditin laurate (provided by Shanghai Yutian Chemical Co., Ltd.), start stirring, and under the protection of nitrogen, gradually increase the temperature to 120 ° C, react for 2 hours and cool to room temperature to obtain epoxy asphalt mixture Modified toughener for A component.

Embodiment 2

[0055] Embodiment 2: Take by weighing 100 parts of bisphenol A type glycidyl ether epoxy resin (E51) (provided by Wuxi Resin Factory), add respectively 5 parts of modified tougheners prepared in Example 1 and 1 part of tetrabutyl iodide Ammonium chloride (TBAI) (provided by Yixing Kailida Chemical Co., Ltd.), start stirring, and gradually increase the temperature to 160 ° C, after 2 hours of reaction, cool at room temperature for 24 hours, add 10 parts of phenyl glycidyl ether (provided by Wuxi Resin Factory ) to obtain component A of the epoxy asphalt mixture.

Embodiment 3

[0056] Embodiment 3: take by weighing 100 parts of bisphenol A type glycidyl ether epoxy resins (E51), add respectively 10 parts of modified tougheners prepared in Example 1 and 2 parts of tetrabutylammonium iodide (TBAI), Start stirring, and gradually increase the temperature to 160°C. After reacting for 2 hours, cool at room temperature for 24 hours, and add 20 parts of benzyl glycidyl ether (provided by Wuxi Resin Factory) to obtain component A of the epoxy asphalt mixture.

[0057] The preparation method of component B of high-performance epoxy asphalt mixture is as follows:

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PUM

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Abstract

The invention discloses a high-performance epoxy bitumen mixture easy to construct and maintain, comprising four components of A, B, C and D. The high-performance epoxy bitumen mixture easy to construct and maintain is characterized in that the component A mainly comprises epoxy resin, a toughening agent, an accelerating agent and a diluent agent; the component B mainly comprises a curing agent, an accelerating agent, a compatilizer and a diluent agent; the component C comprises bitumen; the component D comprises aggregates and mineral powder, wherein the ratio of the component A to the component B is 100:50 to 100:100; the ratio of the sum of the component A and the component B to the component C is 100:100 to 100:160; and the ratio of the sum of the component A, the component B and the component C to the component D is 6:94 to 7:93. The high-performance epoxy bitumen mixture easy to construct and maintain has the characteristics of excellent mechanical property, temperature resistance, water resistance, solvent corrosion resistance, fatigue durability, simple construction process and short maintenance time. The high-performance epoxy bitumen mixture easy to construct and maintain is suitable for paving and maintenance of road surfaces, such as steel bridge floors, cement concrete bridge floors, tunnels, expressways and the like. The invention also discloses a preparation method of the high-performance epoxy bitumen mixture easy to construct and maintain.

Description

technical field [0001] The invention relates to a thermosetting epoxy resin modified asphalt mixture, in particular to an epoxy asphalt mixture with simple construction and short curing time and a preparation method thereof. Background technique [0002] Petroleum asphalt is an indispensable material for the construction and maintenance of asphalt pavement, and its performance directly determines the engineering quality and structural form of the asphalt pavement. Due to the large changes in molecular weight distribution and polarity of petroleum asphalt, such composition and structural characteristics determine that it is easy to soften at high temperature and brittle at low temperature. In order to improve the performance of asphalt, it is usually modified by adding polymers. Polymers used for bitumen modification can be divided into four major categories: thermoplastic resins, rubbers, thermoplastic elastomers, and reactive polymers. Rubber (such as styrene-butadiene ru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/02C08K13/02C08K5/19C08K5/18C08K5/1515C08K5/526C08K3/34C08K3/36
Inventor 谢鸿峰尹海燕王玉婷王成双王治流程镕时
Owner NANJING UNIV
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