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Road asphalt mixture rut resisting additive and preparation method thereof

An anti-rutting additive and road asphalt technology, which is applied in building insulation materials, building components, buildings, etc., can solve the problem of few mature products, achieve the effects of improving anti-rutting performance, reducing costs, and optimizing experimental conditions

Inactive Publication Date: 2013-03-13
HUBEI GUOCHUANG HI TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, there are few mature products in this field in my country at present, and relevant research needs to be further deepened

Method used

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  • Road asphalt mixture rut resisting additive and preparation method thereof
  • Road asphalt mixture rut resisting additive and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An anti-rutting additive for road asphalt mixture, which is prepared by mixing the following raw materials, melt extruding, pelletizing, and drying. The composition of the raw materials and the weight of each raw material are:

[0021] New polyethylene (granular) 100kg,

[0022] Waste rubber powder 10kg,

[0023] Maleic anhydride 1.2kg,

[0024] Dicumyl peroxide 0.12kg.

[0025] The preparation method is as follows: according to the above ratio, polyethylene, waste rubber powder, maleic anhydride, and dicumyl peroxide are evenly mixed at room temperature, and the mixture is added to a twin-screw extruder. Body temperature, 30-50 rpm host speed, 30-60 rpm feeding rate, melt extrusion, pelletizing, drying (drying at room temperature for 5-15min), to obtain 2-5mm long road asphalt mixture Anti-rutting additive (product of the present invention).

[0026] Polyethylene, waste rubber powder, maleic anhydride, and dicumyl peroxide are all existing raw materials.

[0027] ...

Embodiment 2

[0029] An anti-rutting additive for road asphalt mixture, which is prepared by mixing the following raw materials through melt extrusion, pelletizing, and drying. The composition of the raw materials and the weight of each raw material are:

[0030] Low-density polyethylene (granular) 65kg,

[0031] Waste low-density polyethylene (granular) 35kg,

[0032] Waste rubber powder 10kg,

[0033] Maleic anhydride 0.5kg,

[0034] Dicumyl peroxide 0.05kg.

[0035]The preparation method is as follows: uniformly mix polyethylene, waste polyethylene, waste rubber powder, maleic anhydride, and dicumyl peroxide at room temperature according to the above ratio, and add the mixture to a twin-screw extruder, ~210°C cylinder temperature, 30~50 rpm host speed, 30~60 rpm feeding rate, melt extrusion, pelletizing, drying (blow drying at room temperature for 5-15min), to obtain 2~5mm long Product of the present invention.

Embodiment 3

[0037] An anti-rutting additive for road asphalt mixture, which is prepared by mixing the following raw materials, melt extruding, pelletizing, and drying. The composition of the raw materials and the weight of each raw material are:

[0038] Low-density polyethylene (granular) 65kg,

[0039] Waste low-density polyethylene (granular) 35kg,

[0040] Waste rubber powder 10kg,

[0041] Maleic anhydride 2.0kg,

[0042] Dicumyl peroxide 0.2kg.

[0043] The preparation method is as follows: uniformly mix polyethylene, waste polyethylene, waste rubber powder, maleic anhydride, and dicumyl peroxide at room temperature according to the above ratio, and add the mixture to a twin-screw extruder, ~210°C cylinder temperature, 30~50 rpm host speed, 30~60 rpm feeding rate, melt extrusion, pelletizing, drying (blow drying at room temperature for 5-15min), to obtain 2~5mm long Product of the present invention.

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Abstract

Belonging to the technical field of road asphalt mixture additives, the invention relates to an asphalt mixture rut resisting agent and a preparation method thereof. A road asphalt mixture rut resisting additive is characterized in that it is prepared by: mixing the following raw materials, and conducting melt extrusion, grain cutting, as well as drying. The raw materials consist of, by weight: 100 parts of polyolefin, 3-30 parts of waste rubber powder, 0.5-2 parts of maleic anhydride, and 0.05-0.2 part of dicumyl peroxide. The additive prepared by the method can significantly improve the rut resistance of an asphalt mixture.

Description

technical field [0001] The invention belongs to the technical field of road asphalt mixture additives, and relates to an anti-rutting agent for asphalt mixture and a preparation method thereof. Background technique [0002] With the characteristics of large flow, large axle load and channelized traffic on my country's expressways becoming more and more prominent, under the action of high temperature and continuous load, the flow deformation of asphalt pavement will accumulate and form rutting. Rutting is one of several major factors in the early failure of asphalt pavement. The appearance of rutting on asphalt pavement will seriously affect the service ability of the pavement structure, not only directly affect the smoothness of the pavement and driving safety, but also weaken the overall strength of the surface layer and pavement structure due to the thinning of the asphalt layer at the wheel tracks. It will further induce other diseases and affect the quality and service ...

Claims

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Application Information

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IPC IPC(8): C08F255/00C08F255/02C08L95/00C08L51/06C08L21/00
Inventor 吉永海涂娟张瑜江国其高涛
Owner HUBEI GUOCHUANG HI TECH MATERIAL
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