Dicyclopentadiene modified epoxy asphalt mixture and preparation method and uses thereof

A technology of dicyclopentadiene and epoxy asphalt, applied to the preparation of the above dicyclopentadiene modified epoxy asphalt mixture, dicyclopentadiene modified epoxy asphalt mixture, the above dicyclopentadiene modified epoxy asphalt mixture The application field of oxygen asphalt mixture can solve problems such as brittleness, poor impact resistance, poor toughness of epoxy asphalt materials, and reduced service life, so as to increase toughness, improve road performance, and avoid water damage.

Active Publication Date: 2015-12-09
RES INST OF HIGHWAY MINIST OF TRANSPORT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, epoxy asphalt material has poor toughness, brittle quality after curing, poor impact resistance, and easy to crack
When the epoxy asphalt mixture is in use, it is easy to cause cracks and continue to expand, which will cause a series of diseases such as water damage and reduced service life.

Method used

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  • Dicyclopentadiene modified epoxy asphalt mixture and preparation method and uses thereof

Examples

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preparation example Construction

[0049] In the preparation method of the present invention, component A and component B can also be pre-mixed, stirred at 25-60°C, then added to the mineral material and mixed with asphalt at the same time, stirred at 60-150°C to obtain dicyclopentadiene Modified epoxy asphalt mixture.

[0050] The dicyclopentadiene-modified epoxy asphalt material and its mixture described in the present invention can be applied to steel bridge deck, cement concrete bridge deck pavement, pavement and repair of asphalt pavement, and can be used at intersections and parking stations and other special roads.

[0051] The present invention will be described in detail below in conjunction with specific examples. The dicyclopentadiene modified epoxy asphalt mixture adopts AC-13 gradation.

Embodiment 1

[0053] 1) Heat and stir the epoxy resin at 80-120°C until a transparent epoxy resin solution is formed, then add dicyclopentadiene and mix, and stir for 5-10 minutes to obtain component A;

[0054]2) Add 60 parts of polyamide 650 curing agent at 60 degrees to the reaction kettle, add 60 parts of polyazelaic anhydride curing agent, 0.005g of N,N-dimethylaniline accelerator, mix and stir for 20 minutes, and complete component B preparation of

[0055] 3) Mix 100 parts of component A dicyclopentadiene modified epoxy resin with component B, and stir at room temperature for 5 minutes;

[0056] 4) Mix components A and B with 110 parts of 70# petroleum asphalt kept at 120°C for 10 minutes to obtain dicyclopentadiene-modified epoxy asphalt.

[0057] 5) Mix the dicyclopentadiene modified epoxy asphalt into the stone, and stir at 80°C for 60s to obtain the dicyclopentadiene modified epoxy asphalt mixture.

Embodiment 2

[0059] 1) Heat and stir the epoxy resin at 80-120°C until a transparent epoxy resin solution is formed, then add dicyclopentadiene and mix, and stir for 5-10 minutes to obtain component A;

[0060] 2) Add 50 parts of polyamide 650 curing agent with heat preservation at 60 degrees to the reaction kettle, add 75 parts of tung oil modified anhydride curing agent, 0.00625g of N,N-dimethylaniline accelerator, mix and stir for 20 minutes, and complete B component preparation of

[0061] 3) Mix 100 parts of component A dicyclopentadiene modified epoxy resin with component B, and stir at room temperature for 5 minutes;

[0062] 4) Mix the product of step 3 with 112.5 parts of 70# petroleum asphalt kept at 110°C into the stone, and stir at 100°C for 60s to obtain dicyclopentadiene modified epoxy asphalt mixture.

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Abstract

A dicyclopentadiene modified epoxy asphalt mixture is composed of 2-8 parts by mass of dicyclopentadiene modified epoxy asphalt and 92-98 parts by mass of mineral aggregate, wherein the dicyclopentadiene modified epoxy asphalt includes three components A, B, C, A is 100 parts of dicyclopentadiene modified epoxy resin, B includes 70-150 parts of curing agents, and 0-0.02 parts of accelerants; C is 50-200 parts of asphalt. The invention also discloses a preparation method of the dicyclopentadiene modified epoxy asphalt mixture which is suitable for paving and repairing steel bridge floor, cement concrete bridge floor, and asphalt roadsurface, and can be used in special segment such as crossing, stop, etc.

Description

technical field [0001] The invention relates to a modified asphalt material for roads, specifically a dicyclopentadiene modified epoxy asphalt mixture. [0002] The invention also relates to a preparation method of the above-mentioned dicyclopentadiene modified epoxy asphalt mixture. [0003] The present invention also relates to the application of the dicyclopentadiene modified epoxy asphalt mixture. Background technique [0004] In recent years, epoxy asphalt material, as a new type of thermosetting high-performance material, has been widely used in bridge and road pavement and repair in my country. Epoxy asphalt is to add epoxy resin to the asphalt, after the curing reaction with the curing agent, the asphalt molecules are dispersed in the network structure formed by the epoxy resin to form an irreversible cured product. Compared with ordinary asphalt or other thermoplastic asphalt, epoxy asphalt has incomparably superior mechanical properties; mainly rigidity and high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B24/28
Inventor 曹东伟张艳君张海燕平树江常卫平
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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