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Warm-mix anti-furrow agent for enhancing high-temperature stability of asphalt pavement and production method thereof

A technology of high temperature stability and anti-rutting agent, applied in the field of warm-mix anti-rutting agent, can solve the problems of increasing harmful gas emissions, increasing fuel consumption, asphalt aging, etc., and achieving the effect of excellent anti-rutting performance

Inactive Publication Date: 2012-10-03
四川阳罡能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This material has anti-rutting performance, but the aggregate heating temperature, mixing temperature and paving and rolling temperature reach 180°C, 170°C and 160°C respectively, which still increases fuel consumption, increases harmful gas emissions, and easily leads to asphalt aging The problem

Method used

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  • Warm-mix anti-furrow agent for enhancing high-temperature stability of asphalt pavement and production method thereof
  • Warm-mix anti-furrow agent for enhancing high-temperature stability of asphalt pavement and production method thereof
  • Warm-mix anti-furrow agent for enhancing high-temperature stability of asphalt pavement and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Adopt the following method to process warm mixing anti-rutting agent of the present invention:

[0030] (1) Modified low-density polyethylene is obtained by surface grafting modification of low-density polyethylene with a density of 0.915-0.940 g / cubic centimeter. The modifier used in the modification process is polystearyl maleic anhydride ;

[0031] (2) Mix and mix the following materials by weight evenly: 5 parts of alkyl fluorenol, 4.5 parts of alkyl benzofluorenol, 4 parts of alkyl dibenzofluorenol, 3 parts of alkyl fluorenone, 3 parts of benzofluorenone, 3 parts of alkyl dibenzofluorenone, 2.5 parts of alkyl benzonaphthofluorenone, 35 parts of modified low-density polyethylene, high-density polyethylene with a density of 0.941~0.960 g / cubic centimeter 20 parts of ethylene, 2.5 parts of plasticizer;

[0032] (3) Put the mixed material into the hopper of the screw extruder, turn on the temperature control switch of the screw extruder, control the heating temperatu...

Embodiment 2

[0036] Adopt the following method to process warm mixing anti-rutting agent of the present invention:

[0037] (1) Modified low-density polyethylene with a density of 0.915-0.940 g / cubic centimeter is modified by surface grafting, and the modifier used in the modification process is polyhexadecyl maleic anhydride ;

[0038] (2) Mix and mix the following materials by weight evenly: 4 parts of alkyl fluorenol, 3.6 parts of alkyl benzofluorenol, 3.2 parts of alkyl dibenzofluorenol, 2.4 parts of alkyl fluorenone, 2.4 parts of benzofluorenone, 2.4 parts of alkyl dibenzofluorenone, 2 parts of alkyl benzonaphthofluorenone, 30 parts of modified low-density polyethylene, high-density polyethylene with a density of 0.941~0.960 g / cubic centimeter 25 parts of ethylene, 2 parts of impact modifier;

[0039] (3) Put the mixed material into the hopper of the screw extruder, turn on the temperature control switch of the screw extruder, control the heating temperature of the first zone to 100...

Embodiment 3

[0043] Adopt the following method to process warm mixing anti-rutting agent of the present invention:

[0044] (1) Modified low-density polyethylene is obtained by surface grafting modification of low-density polyethylene with a density of 0.915-0.940 g / cubic centimeter. The modifier used in the modification process is polytetradecyl maleic anhydride ;

[0045] (2) Mix and mix the following materials by weight evenly: 6 parts of alkyl fluorenol, 5.4 parts of alkyl benzofluorenol, 4.8 parts of alkyl dibenzofluorenol, 3.6 parts of alkyl fluorenone, 3.6 parts of benzofluorenone, 3.6 parts of alkyl dibenzofluorenone, 3 parts of alkyl benzonaphthofluorenone, 40 parts of modified low-density polyethylene, high-density polyethylene with a density of 0.941~0.960 g / cubic centimeter 15 parts of ethylene, 3 parts of processing aids;

[0046] (3) Put the mixed material into the hopper of the screw extruder, turn on the temperature control switch of the screw extruder, control the heatin...

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Abstract

The invention discloses a warm-mix anti-furrow agent for enhancing high-temperature stability of an asphalt pavement. The warm-mix anti-furrow agent comprises the following materials in parts by weight: 10-50 parts of organic compound, 10-60 parts of modified low-density polyethylene, 5-35 parts of high-density polyethylene and 0-5 parts of assistant. The invention also discloses a production method of the warm-mix anti-furrow agent for enhancing the high-temperature stability of the asphalt pavement. The method comprises the following steps: modifying the low-density polyethylene; mixing the organic compound, the modified low-density polyethylene, the high-density polyethylene and the assistant; extruding out a cylindrical semi-finished product by a screw extruder; and grinding to obtain a finished product. The warm-mix anti-furrow agent as an asphalt additive has good anti-furrow property under the conditions that the heating temperature of aggregate and blending temperature of an asphalt mixture and that the paving and grinding temperatures are less than 20 DEG C, so that organic combination of warm mix and anti-furrow properties is realized.

Description

technical field [0001] The invention relates to an anti-rutting agent and a production method for improving the high-temperature stability of asphalt pavement, in particular to a warm-mix anti-rutting agent capable of organically combining warm-mix and anti-rutting performances and a production method. Background technique [0002] With the rapid development of society and economy, the construction of transportation infrastructure is getting deeper and deeper. As of 2011, China has built a total mileage of 4.106 million kilometers of highways, including 85,000 kilometers of expressways. By 2020, the mileage of domestic expressways will be as high as More than 100,000 kilometers. [0003] Asphalt pavement has the advantages of comfortable driving, low noise, fast construction speed, and convenient maintenance. Therefore, asphalt pavement is basically used in expressway construction. More than 90% of China's completed expressways use asphalt pavement. [0004] However, as a t...

Claims

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Application Information

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IPC IPC(8): C04B24/28
Inventor 杨遗良
Owner 四川阳罡能源科技有限公司
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