Warm mix anti-rutting asphalt mixing material and preparation method thereof

A technology of asphalt mixture and warm mix asphalt, which can be applied in the field of coagulation pavement, climate change adaptation, construction, etc. requirements, the effect of extending the construction season

Inactive Publication Date: 2013-05-08
SHENZHEN OCEANPOWER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to solve the technical problems of poor anti-rutting performance and high mixing temperature of the existing asphalt mixture. The present invention mainly adopts the following technical solutions

Method used

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  • Warm mix anti-rutting asphalt mixing material and preparation method thereof
  • Warm mix anti-rutting asphalt mixing material and preparation method thereof
  • Warm mix anti-rutting asphalt mixing material and preparation method thereof

Examples

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preparation example Construction

[0048] The preparation method of the warm-mix anti-rutting asphalt mixture of the present invention, the steps are:

[0049] (1) In the mixing plant equipment, add aggregate when the heating temperature reaches 160-230°C;

[0050] (2) Add warm-mix asphalt additive and anti-rutting asphalt modifier, dry mix at 110-170°C for 80-90s;

[0051] (3) Add asphalt when the temperature is adjusted to 140-170°C, and wet mix at 110-170°C for 80-90s;

[0052] (4) The molding temperature of the asphalt mixture is 130-160°C.

[0053] Another preparation method of the warm-mix anti-rutting asphalt mixture of the present invention, the steps are:

[0054] (1) In the mixing plant equipment, add aggregate when the heating temperature reaches 160-230°C;

[0055] (2) Add anti-rutting asphalt modifier, dry mix at 110-170°C for 80-90s;

[0056] (3) When the temperature is adjusted to 140-170°C, add asphalt and warm-mix asphalt additives, and wet mix at 110-170°C for 80-90s;

[0057] (4) The mol...

Embodiment 1

[0061] (1) In the mixing plant equipment, add 206400g of aggregate when the heating temperature reaches 160°C;

[0062] (2) Add 764g of warm mix asphalt additive and 655g of anti-rutting asphalt modifier, and dry mix at 110°C for 80s;

[0063] (3) When the temperature is adjusted to 140°C, add 10320g of asphalt, and wet mix at 110°C for 80s;

[0064] (4) The molding temperature of the asphalt mixture is 145°C.

Embodiment 2

[0066] (1) Add 318230g of aggregate when the heating temperature reaches 200°C in the mixing plant equipment;

[0067] (2) Add 1010g of anti-rutting asphalt modifier, and dry mix at 140°C for 90s;

[0068] (3) When the temperature is adjusted to 160°C, add 15,910g of asphalt and 1,180g of warm mix asphalt additive, and wet mix at 140°C for 90s;

[0069] (4) The molding temperature of the asphalt mixture is 150°C.

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Abstract

The invention provides a warm mix anti-rutting asphalt mixing material and a preparation method thereof. The warm mix anti-rutting asphalt mixing material comprises 0.25-0.5% by weight of a warm mix asphalt additive and 0.1-0.6% by weight of an anti-rutting asphalt modifier. The warm mix anti-rutting asphalt mixing material has the following characteristics that: a warm mix effect is significant; a mixing temperature can be reduced by more than 30 DEG C, and a paving temperature can be reduced; and an anti-rutting performance of an asphalt mixing material can be significantly increased, low temperature cracking resistance and other performances can be improved, and a performance price ratio is high.

Description

technical field [0001] The invention relates to a warm-mix anti-rutting asphalt mixture and a preparation method thereof. Background technique [0002] The early damage of highway asphalt pavement has become a prominent contradiction affecting the healthy development of my country's highways. The shortcomings are mainly manifested in three aspects: First, the damage time is early. Some roads were seriously damaged 1-2 years after they were built and used. Some road sections were damaged in a large area in the year they were opened to traffic, far short of the design life. Second, the damage range is wide. The problem of premature pavement damage exists to varying degrees across the country. Third, the degree of damage is heavy. Some damage is not limited to the asphalt surface layer, but the base layer is also damaged, and the road surface has to be rebuilt. [0003] High-temperature rutting failure will still be the first cause of early failure of asphalt pavement for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/26C04B26/26
CPCC08L95/00C08K3/22C08J3/00C08L3/00C08L2555/24C08J3/201E01C7/18C08J2395/00C08K3/34Y02A30/30
Inventor 赵欣平宋科何唯平
Owner SHENZHEN OCEANPOWER NEW MATERIALS TECH
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