High-modulus colored asphalt mixture and preparation method thereof

A technology for asphalt mixture and colored asphalt, applied in the field of asphalt mixture, can solve problems such as road surface damage and occurrence of diseases, and achieve the effects of avoiding diseases, excellent high-temperature shear resistance and anti-rutting performance, and reducing the passing rate.

Inactive Publication Date: 2015-05-20
NANJING TONGAN ROAD ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally speaking, the above-mentioned special road sections will adopt the same structure type as the adjacent road sections when designing, such as AC-13, SMA-13, etc., but this kind of asphalt mixture cannot resist repeated stops and starts of vehicles for a long time , the disease will appear in a short period of time, resulting in damage to the pavement

Method used

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  • High-modulus colored asphalt mixture and preparation method thereof
  • High-modulus colored asphalt mixture and preparation method thereof
  • High-modulus colored asphalt mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] S1. Preparation of colored asphalt binder:

[0027] The raw materials are: C5 petroleum resin 16%, C9 petroleum resin 20%, petroleum rubber oil 45%, styrene-butadiene-styrene copolymer 7%, polyethylene PE 8%, polyurethane 4%, All are percentages by mass.

[0028] Heat petroleum-based rubber oil to 175°C, then add C5 petroleum resin, C9 petroleum resin, styrene-butadiene-styrene copolymer, polyethylene PE and polyurethane to it, and shear and stir for 2 to 4 hours , to prepare colored asphalt binder for use.

[0029] S2, preparation of high modulus agent:

[0030] The raw materials are: 53% of linear low-density polyethylene, 18% of resin, 24% of flexible glue, 3% of functional agent, and 2% of anti-aging agent RD, all of which are in mass percentage. These raw materials are fused, added to the screw extruder, melted and extruded at a cylinder temperature of 180-230°C, a main engine speed of 45-60r / min, and a feeding rate of 45-60r / min, pelletized, dried, and Air-dri...

Embodiment 2

[0040] S1. Preparation of colored asphalt binder:

[0041] The raw materials are: C5 petroleum resin 10%, C9 petroleum resin 25%, petroleum rubber oil 35%, styrene-butadiene-styrene copolymer 15%, polyethylene PE 12%, polyurethane 3%, All are percentages by mass.

[0042] Heat petroleum-based rubber oil to 175°C, then add C5 petroleum resin, C9 petroleum resin, styrene-butadiene-styrene copolymer, polyethylene PE and polyurethane to it, and shear and stir for 2 to 4 hours , to prepare colored asphalt binder for use.

[0043] S2, preparation of high modulus agent:

[0044] The raw materials are: 50% of linear low-density polyethylene, 12% of resin, 28% of flexible glue, 8% of functional agent, and 2% of anti-aging agent RD, all of which are in mass percentage. These raw materials are fused, added to the screw extruder, melted and extruded at a cylinder temperature of 180-230°C, a main engine speed of 45-60r / min, and a feeding rate of 45-60r / min, pelletized, dried, and Air-d...

Embodiment 3

[0049] S1. Preparation of colored asphalt binder:

[0050] The raw materials are: C5 petroleum resin 13%, C9 petroleum resin 18%, petroleum rubber oil 50%, styrene-butadiene-styrene copolymer 7%, polyethylene PE 8%, polyurethane 4%, All are percentages by mass.

[0051]Heat petroleum-based rubber oil to 175°C, then add C5 petroleum resin, C9 petroleum resin, styrene-butadiene-styrene copolymer, polyethylene PE and polyurethane to it, and shear and stir for 2 to 4 hours , to prepare colored asphalt binder for use.

[0052] S2, preparation of high modulus agent:

[0053] The raw materials are: 60% of linear low-density polyethylene, 15% of resin, 20% of flexible glue, 4% of functional agent, and 1% of anti-aging agent RD, all of which are in mass percentage. These raw materials are fused, added to the screw extruder, melted and extruded at a cylinder temperature of 180-230°C, a main engine speed of 45-60r / min, and a feeding rate of 45-60r / min, pelletized, dried, and Air-drie...

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Abstract

The invention discloses a high-modulus colored asphalt mixture and a preparation method thereof. The preparation method is simple and easy to implement, the prepared colored asphalt mixture has the characteristics of high modulus and excellent pavement performance. Compared with AC-13 and SMA-13 and other conventional asphalt mixtures, the colored asphalt mixture has the advantages of fulfilling long-time use of special sections to avoid damages of pavement, especially has excellent high-temperature resistance and durability, and has durable and bright color; furthermore, by reasonably selecting grading of aggregates and mineral powder, the passing rate of fine aggregates can be reduced, the proportion of coarse aggregates can be improved, the colored asphalt mixture forms a stable frame structure, and the high-temperature anti-shearing anti-rutting performance is good.

Description

technical field [0001] The invention relates to an asphalt mixture, in particular to a colored high-modulus asphalt mixture and a preparation method thereof, which belongs to the field of road engineering and is suitable for special road sections such as traffic canalized road sections, urban road intersections and bus stops. Background technique [0002] In special road sections such as urban traffic channelization road sections, intersections and bus stops, colored pavement is generally paved to play the role of traffic control and warning. These special road sections are more prone to defects such as rutting, pushing, hugging and potholes due to the frequent braking and turning of vehicles. Therefore, these road sections have higher performance requirements for road surfaces than other general road sections. At the same time, the urban traffic volume is increasing day by day, which puts forward higher requirements on the overall performance of the road surface. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B24/26
Inventor 余波施晓强王力吴明亮祝学成羊林林
Owner NANJING TONGAN ROAD ENG
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