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Special modified asphalt for roads, and preparation method thereof

A modified asphalt, a special technology, applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems of reduced mechanical properties, achieve the effects of improved elongation, improved softening temperature, and reduced rolling noise

Inactive Publication Date: 2019-11-12
SHANDONG INNOWIT CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, its mechanical properties degrade over time

Method used

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  • Special modified asphalt for roads, and preparation method thereof
  • Special modified asphalt for roads, and preparation method thereof
  • Special modified asphalt for roads, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A modified asphalt comprising the following components in parts by weight: 75 parts of base asphalt, 3 parts of hydroxide XOH, wherein X=Na, Ca, Mg, Li or K, 1 part of glycol compound, and 3 parts of ash , 2 parts of a granular mixture of at least one hydrocarbon binder and 3 parts of at least one amine additive.

[0045] A preparation method of special modified asphalt for road, comprising the following steps:

[0046] (1) Add base asphalt, hydroxide XOH, glycol compound, ash, pellet mixture and amine additives into the melt mixing equipment;

[0047] (2) Set the processing temperature of the melt mixing equipment to 170° C., the shear speed to 3500 rpm, and mix for 70 minutes;

[0048] (3) extruding the mixture mixed by the melt mixing equipment through an extruder;

[0049] (4) Use cooling equipment to cool the extruded mixture, store and pack it.

Embodiment 2

[0051] A modified asphalt comprising the following components in parts by weight: 80 parts of base asphalt, 5 parts of hydroxide XOH, wherein X=Na, Ca, Mg, Li or K, 2 parts of diol compound, 4 parts of ash , 3 parts of a granular mixture of at least one hydrocarbon binder and 4 parts of at least one amine additive.

[0052] A preparation method of special modified asphalt for road, comprising the following steps:

[0053] (1) Add base asphalt, hydroxide XOH, glycol compound, ash, pellet mixture and amine additives into the melt mixing equipment;

[0054] (2) Set the processing temperature of the melt mixing equipment to 180° C., the shear speed to 4000 rpm, and mix for 80 minutes;

[0055] (3) extruding the mixture mixed by the melt mixing equipment through an extruder;

[0056] (4) Use cooling equipment to cool the extruded mixture, store and pack it.

Embodiment 3

[0058] A modified asphalt comprising the following components in parts by weight: 85 parts of base asphalt, 7 parts of hydroxide XOH, wherein X=Na, Ca, Mg, Li or K, 2 parts of diol compound, and 1 part of ash , 1 part of granular mixture of at least one hydrocarbon binder and 3 parts of at least one amine additive

[0059] A preparation method of special modified asphalt for road, comprising the following steps:

[0060] (1) Add base asphalt, hydroxide XOH, glycol compound, ash, pellet mixture and amine additives into the melt mixing equipment;

[0061] (2) Set the processing temperature of the melt mixing equipment to 200° C., the shear speed to 5000 rpm, and mix for 90 minutes;

[0062] (3) extruding the mixture mixed by the melt mixing equipment through an extruder;

[0063] (4) Use cooling equipment to cool the extruded mixture, store and pack it.

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Abstract

The invention discloses a special modified asphalt for roads, and a preparation method thereof. The modified asphalt comprises, by weight, 70-85 parts of base asphalt, 1-8 parts of a hydroxide XOH, 1-3 parts of a diol compound, 2-5 parts of ash, 1-3 parts of a particle mixture containing at least one hydrocarbon binder and 3-5 parts of at least one amine additive, wherein X = Na, Ca, Mg, Li or K.The introduction of the amine additive and the hydroxide XOH into the modified asphalt improves the elongation and the softening temperature; the particle mixture meeting specific particle size distribution requirements is adopted, so the modified asphalt has a good sound absorbing property; and the ash is adopted to shorten the curing time of the modified asphalt.

Description

technical field [0001] The invention relates to the technical field of road materials, in particular to a special modified asphalt for roads and a preparation method thereof. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof and anti-corrosion organic gelling material. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads. [0003] With the development of modern transportation, the performance of traditional asphalt pavement is becoming more and more difficult to meet the requirements. Bituminous compositions are sensitive to oxidation due to the presence of aromatic and unsaturated compounds in bitumen. As a result, its mechanical properties degrade over time. Fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K13/02C08K3/22C08K5/053C08K3/36
CPCC08K3/22C08K3/36C08K5/053C08K13/02C08K2003/222C08K2003/2272C08K2003/2296C08K2201/005C08L95/00
Inventor 乔永军刘秀娥王川刘慧智
Owner SHANDONG INNOWIT CHEM
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