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Compound ageing resistant modified asphalt and preparing method thereof

A modified asphalt, anti-aging technology, used in building components, building insulation materials, construction and other directions, can solve problems such as reducing road service life, asphalt pavement damage, and increasing maintenance costs, saving resources, extending service life, reducing The effect of maintenance costs

Inactive Publication Date: 2015-04-01
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aging of asphalt will accelerate the damage of asphalt pavement, causing premature cracks, cracks and loosening of the pavement
Aging will cause the properties of asphalt to gradually decay, causing the adhesion between asphalt and aggregates to be greatly reduced, so that it will eventually lose its use value
At the same time, under the action of water, the asphalt mixture is more likely to loosen and peel off, which will greatly reduce the service life of the road and increase the maintenance cost

Method used

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  • Compound ageing resistant modified asphalt and preparing method thereof
  • Compound ageing resistant modified asphalt and preparing method thereof
  • Compound ageing resistant modified asphalt and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The aging-resistant asphalt of this embodiment is composed of the following raw materials in mass percentage: 0% rubber powder, 1%, 3%, 5%, 7% and 9% modifiers, 0% compatibilizer, and 0% nanomaterials. %, chemical additives 0%, stabilizer 0%, and the remaining components are matrix asphalt.

[0029] The base asphalt is selected from Alpha 70# heavy traffic asphalt produced in Jiangsu, with a softening point of 49.2°C, a penetration of 29.3 at 15°C, and a ductility of >100 at 15°C.

[0030] The preparation method of the anti-aging asphalt of the present embodiment comprises the following steps:

[0031] (1) According to the mass parts of each raw material: 91 parts, 93 parts, 95 parts, 97 parts of asphalt respectively; ;

[0032] (2) First, put the container containing the base asphalt into an electric heating constant temperature blast drying box to melt, and the melting temperature is controlled at 137°C. Wait until the base asphalt is completely melted before use. ...

Embodiment 2

[0043] The compound anti-aging modified asphalt of this embodiment is composed of the following raw materials in mass percentage: rubber powder 9%, modifier 1%, compatibilizer 6%, nanomaterials 8%, chemical additives 0.3%, stabilizer 0.2%, and the remaining components are base asphalt.

[0044] The base asphalt is selected from Alpha 70# heavy traffic asphalt produced in Jiangsu, with a softening point of 49.2°C, a penetration of 29.3 at 15°C, and a ductility of >100 at 15°C.

[0045] The preparation method of the anti-aging composite modified asphalt of this embodiment comprises the following steps:

[0046] (1) According to the mass parts of each raw material: 83.5 parts of asphalt, 9 parts of rubber powder, 1 part of modifier, 6 parts of compatibilizer, 8 parts of nanomaterials, 0.3 parts of chemical additives, 0.2 parts of stabilizer, prepare raw materials ,spare;

[0047] (2) First, put the container containing the base asphalt into an electric heating constant temperat...

Embodiment 3

[0059] The compound anti-aging modified asphalt of this embodiment is composed of the following raw materials in mass percentage: rubber powder 9%, modifier 1%, compatibilizer 6%, nanomaterials 8%, chemical additives 0.3%, stabilizer 0.2%, and the remaining components are base asphalt.

[0060] The base asphalt is selected from Alpha 70# heavy traffic asphalt produced in Jiangsu, with a softening point of 49.2°C, a penetration of 29.3 at 15°C, and a ductility of >100cm at 15°C.

[0061] The preparation method of the anti-aging composite modified asphalt of this embodiment comprises the following steps:

[0062] (1) According to the mass parts of each raw material: 83.5 parts of asphalt, 9 parts of rubber powder, 1 part of modifier, 6 parts of compatibilizer, 8 parts of nanomaterials, 0.3 parts of chemical additives, 0.2 parts of stabilizer, prepare raw materials ,spare;

[0063] (2) First, put the container containing the base asphalt into an electric heating constant temper...

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Abstract

The invention provides a new preparing method of ageing resistant modified asphalt. The ageing resistant modified asphalt comprises matrix asphalt, compatilizer, a nanometer material, modifier, rubber powder, chemical assistant and stabilizer. The asphalt mixture comprises, by mass, 0.1%-0.5% of compatilizer, 1%-9% of nanometer material, 0.1%-9% of modifier, 10%-18% of rubber powder, 0.3% of chemical assistant, 0.1%-0.3% of stabilizer, and the balance matrix asphalt, and the sum of the total quantities of components is 100%. The service life of a road is prolonged, the maintaining cost of the road is reduced, and the purpose of saving resources is achieved.

Description

technical field [0001] The invention relates to a composite aging-resistant modified asphalt and a preparation method thereof. Background technique [0002] With the increase of traffic volume and axle load, and serious traffic canalization, asphalt pavement is prone to early diseases such as cracks, potholes, rutting, looseness, subsidence, surface damage, etc. Among them, asphalt aging is the most important factor affecting the long-term road use of asphalt concrete pavement. main reason for performance. The aging of asphalt will accelerate the damage of asphalt pavement, causing premature cracks, cracks and loosening of the pavement. Aging will cause the properties of asphalt to gradually decay, causing the adhesion between asphalt and aggregates to be greatly reduced, so that it will eventually lose its use value. At the same time, under the action of water, the asphalt mixture is more likely to loosen and peel off, which will greatly reduce the service life of the roa...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L21/00
Inventor 李锐铎李小江乐明静马桂杰姜文博高玉超许伟强崔亚丽李利勤王辉张志王志刚崔慧丽王超凡
Owner HENAN UNIV OF URBAN CONSTR