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Enhanced epoxy asphalt binder and preparation method thereof

A technology of epoxy asphalt and binder, which is applied in the direction of asphalt material adhesive, epoxy resin glue, adhesive, etc. Low problems such as ensuring long-term phase structure stability, inhibiting phase separation, and increasing compatibility

Pending Publication Date: 2022-08-09
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Under special road sections of bridges and tunnels such as long longitudinal slopes, heavy loads, low speeds, and curves, traditional asphalt-based waterproof adhesive materials cannot meet the actual needs of bonding and shear resistance; in addition, waterproof adhesive layers based on asphalt-based materials Common disadvantages are low strength, poor resistance to paver tracks, and poor ability to crush damage from material truck tires. Therefore, bridge-tunnel pavement special road sections based on traditional asphalt waterproof adhesive materials often have asphalt pavement shifting, wrapping, and rutting. , potholes and other diseases

Method used

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  • Enhanced epoxy asphalt binder and preparation method thereof
  • Enhanced epoxy asphalt binder and preparation method thereof
  • Enhanced epoxy asphalt binder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1: a kind of reinforced epoxy asphalt binder and preparation method thereof

[0053] The reinforced epoxy asphalt binder provided in this example, calculated in parts by weight, component A includes: 95 parts E51, 5 parts XY622, 1 part SCA-E87M, 75 parts I-modified asphalt, 25 parts Epoxy fatty acid methyl ester; component B includes: 80 parts of oleylamine and 20 parts of S-3815; the mass ratio between component A and component B is 100:100.

[0054] The preparation process of the reinforced epoxy asphalt binder is as follows:

[0055] S1 Preheat Type I modified asphalt to 120°C, add epoxy fatty acid methyl ester preheated to 60°C, and stir at 30rpm for 60min to form a homogeneous liquid A 1 ;

[0056] S2 Preheat E51 to 60°C, add XY622 and SCA-E87M, and stir at 30rpm for 60min to form a homogeneous liquid A 2 ;

[0057] S3 will A 1 add to A 2 In, the A component is formed after high-speed shearing at 2000rpm for 2h;

[0058] S4: Preheat oleylamine to ...

Embodiment 2

[0064] Embodiment 2: a kind of reinforced epoxy asphalt binder and preparation method thereof

[0065] The reinforced epoxy asphalt binder provided in this example, calculated in parts by weight, component A includes: 80 parts E20, 20 parts XY692, 1 part SCA-E87E, 25 parts II modified asphalt, 25 parts Epoxy fatty acid octyl ester; component B includes: 95 parts of coconut amine and 5 parts of OA9; the mass ratio between component A and component B is 100:50.

[0066] The preparation process of the reinforced epoxy asphalt binder is as follows:

[0067] S1 Preheat Type II modified asphalt to 140°C, add epoxy fatty acid octyl ester preheated to 60°C, and stir at 60 rpm for 30 minutes to form a homogeneous liquid A 1 ;

[0068] S2 Preheat E20 to 60°C, add XY692 and SCA-E87E, and stir at 60rpm for 30min to form a homogeneous liquid A 2 ;

[0069] S3 will A 1 add to A 2 , the A component is formed after high-speed shearing at 4000rpm for 1h;

[0070] S4 preheats cocoamine t...

Embodiment 3

[0076] Embodiment 3: a kind of reinforced epoxy asphalt binder and preparation method thereof

[0077]The reinforced epoxy asphalt binder provided in this example, calculated in parts by weight, component A includes: 90 parts E44, 10 parts XY748, 3 parts SCA-E87F, 37.5 parts II type modified asphalt, 12.5 parts Epoxy fatty acid butyl ester; component B includes: 90 parts of N-oleyl propylene diamine and 10 parts of S-1017; the mass ratio between component A and component B is 100:67.

[0078] The preparation process of the reinforced epoxy asphalt binder is as follows:

[0079] S1 Preheat Type II modified asphalt to 130°C, add epoxy fatty acid butyl ester preheated to 60°C, and stir at 30 rpm for 60 minutes to form a homogeneous liquid A 1 ;

[0080] S2 Preheat E44 to 60°C, add XY748 and SCA-E87F, and stir at 30rpm for 60min to form a homogeneous liquid A 2 ;

[0081] S3 will A 1 add to A 2 , the A component was formed after high-speed shearing at 3000rpm for 1.5h;

[0...

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Abstract

The invention relates to the technical field of bridge and tunnel pavement waterproof bonding, in particular to an enhanced epoxy asphalt bonding material and a preparation method thereof.The enhanced epoxy asphalt bonding material is composed of a component A and a component B. The component A comprises 80-95 parts of epoxy resin; 5-20 parts of a reactive diluent; 1-5 parts of an active coupling agent; 50 to 100 parts of solubilizing asphalt; the component B comprises 80-95 parts of a normal-temperature curing agent; 5-20 parts of a reinforcing material; the mass ratio of the two components is 100: (50-100). The reinforcing material is dissolved in the normal-temperature curing agent, and the reinforcing material is separated out after normal-temperature curing. The invention innovatively provides a multi-enhancement process of the enhanced epoxy asphalt binder: after normal-temperature curing, the enhanced material is separated out, and the modified asphalt is separated out along with the reaction of the solubilizer, so that the effects of shaping, enhancing and resisting construction damage are achieved on the normal-temperature thermoplastic cured material; after the asphalt mixture acts at a high temperature, the reinforcing material and the modified asphalt are firstly melted and then are respectively separated out for the second time along with temperature reduction, and finally, the bonding and shearing resistance effects on an asphalt pavement layer are greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of waterproof bonding for bridge and tunnel paving, in particular to a reinforced epoxy asphalt binder and a preparation method thereof. Background technique [0002] The waterproof bonding material mainly plays the role of waterproofing, bonding and shear resistance in bridge and tunnel paving. Its quality and effect directly determine the overall service life of bridge and tunnel paving. Most of the existing waterproof bonding layers in bridge and tunnel paving are asphalt materials, including emulsified asphalt and modified asphalt. [0003] The waterproof bonding material based on modified asphalt needs thermal spray construction, and the implementation of thermal spray modified asphalt waterproof bonding material on the base of bridges and tunnels usually causes bulging and delamination due to the high moisture content of the base cement concrete. This will affect the overall service life of the bridge...

Claims

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Application Information

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IPC IPC(8): C09J163/02C09J195/00C09J11/06C08G59/50
CPCC09J163/00C09J11/06C08G59/5013C08L95/00C08K5/1515Y02A30/60Y02A30/30
Inventor 潘友强李款张志祥陈李峰关永胜莫剑臣
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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