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Asphalt mixture anti-rutting additive and preparation method thereof

An anti-rutting additive and asphalt mixture technology, which is applied in building insulation materials, building components, buildings, etc., can solve the problems of uneven dosage and anti-rutting effect, unsatisfactory pavement anti-rutting performance, poor deformation recovery ability, etc. , to achieve the effect of increasing the softening point, improving the fatigue resistance time limit, mechanical strength and elastic modulus

Inactive Publication Date: 2016-06-22
广西科中大交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many types of anti-rutting agents at home and abroad, and the dosage and anti-rutting effect are also uneven. The existing anti-rutting agents all have certain anti-rutting performance, but under heavy load conditions, there is insufficient toughness and deformation recovery ability. Poor, poor wear resistance and other issues, the anti-rutting performance of the road surface is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The anti-rutting additive for asphalt mixture in this embodiment, the anti-rutting agent raw material comprises the following components by weight: 60 parts of polyethylene, 30 parts of whiskers, 15 parts of polymethyl methacrylate, β-(3,5-di tert-butyl-4-hydroxybenzyl) n-octadecyl propionate 5 parts, dilauryl thiodipropionate 5 parts, natural rock asphalt 20 parts.

[0028] In this embodiment, the whiskers are silicon carbide whiskers. In this embodiment, the silicon carbide whiskers are replaced by silicon nitride whiskers, mullite whiskers, potassium titanate whiskers, boric acid One of aluminum whiskers, zinc oxide whiskers, magnesium oxide whiskers, calcium sulfate whiskers, calcium carbonate whiskers, silicon whiskers or magnesium salt whiskers, or replaced by silicon carbide whiskers and nitrogen in equal parts Silicon oxide whiskers, mullite whiskers, potassium titanate whiskers, aluminum borate whiskers, zinc oxide whiskers, magnesium oxide whiskers, calcium su...

Embodiment 2

[0034] The anti-rutting additive for asphalt mixture in this embodiment, the anti-rutting agent raw material includes the following components by weight: 55 parts of polyethylene, 25 parts of whiskers, 10 parts of polymethyl methacrylate, β-(3,5-di 1 part of tert-butyl-4-hydroxybenzyl) n-octadecyl propionate, 1 part of dilauryl thiodipropionate, 15 parts of natural rock pitch.

[0035]In this embodiment, the whiskers are silicon nitride whiskers. In this embodiment, the silicon nitride whiskers are replaced by silicon carbide whiskers, mullite whiskers, potassium titanate whiskers, One of aluminum borate whiskers, zinc oxide whiskers, magnesium oxide whiskers, calcium sulfate whiskers, calcium carbonate whiskers, silicon whiskers or magnesium salt whiskers, or silicon nitride whiskers in equal parts by weight With silicon carbide whiskers, mullite whiskers, potassium titanate whiskers, aluminum borate whiskers, zinc oxide whiskers, magnesium oxide whiskers, calcium sulfate whi...

Embodiment 3

[0040] The anti-rutting additive for asphalt mixture of this embodiment, the raw material of anti-rutting agent comprises the following components by weight: 65 parts of polyethylene, 35 parts of whiskers, 20 parts of polymethyl methacrylate, β-(3,5-di 10 parts of tert-butyl-4-hydroxybenzyl) n-octadecyl propionate, 10 parts of dilauryl thiodipropionate, and 30 parts of natural rock pitch.

[0041] In this embodiment, the whiskers are mullite whiskers. In this embodiment, the mullite whiskers are replaced by silicon nitride whiskers, silicon carbide whiskers, potassium titanate whiskers, One of aluminum borate whiskers, zinc oxide whiskers, magnesium oxide whiskers, calcium sulfate whiskers, calcium carbonate whiskers, silicon whiskers or magnesium salt whiskers, or mullite whiskers in equal parts by weight With silicon nitride whiskers, silicon carbide whiskers, potassium titanate whiskers, aluminum borate whiskers, zinc oxide whiskers, magnesium oxide whiskers, calcium sulfat...

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Abstract

The invention discloses an anti-rutting additive of an asphalt mixture. The anti-rutting additive is prepared from the following raw materials in parts by weight: polyethylene, crystal whiskers, polymethyl methacrylate, beta-(3,5-di-tert-butyl-4-hydroxybenzyl) n-octadecanol propionate, dilauryl thiodipropionate and rock asphalt; the anti-rutting additive of the asphalt mixture is capable of effectively guaranteeing the cementing actionamong the asphalt, an aggregate and the anti-rutting additive while greatly improving the anti-rutting, low-temperature tensile and anti-cracking properties of a pavement, and therefore, the asphalt mixture has excellent overall performance and the overall service life of the pavement structure is increased; in addition, the anti-rutting additive has excellent wear resistance and thus is capable of effectively guaranteeing the anti-slide performance of the pavement.

Description

technical field [0001] The invention relates to the field of pavement materials, in particular to an asphalt mixture anti-rutting additive for improving the high temperature stability and rutting resistance of surface layer asphalt mixture and a preparation method thereof. Background technique [0002] Asphalt pavement ruts refer to the longitudinal strip-shaped grooves with a depth greater than 10 mm at the wheel tracks. According to the "Highway Technical Status Evaluation Standard JTGH20-2007", according to the depth of the ruts, it can be divided into two types: light ruts and heavy ruts. The light ruts are shallow and the depth is between 10 and 15mm; More than 15mm. According to the experience of existing rut treatment in recent years, according to the depth of the rut groove, it can be divided into three types: light rut, moderate rut and severe rut. The depth of light rut is less than 10-15mm, which is mainly compacted rut; Heavy ruts with a depth of 15-35mm are ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L23/06C08L33/12C08K9/06C08K7/10C08K7/08C08K5/134C08K5/372
Inventor 张培谭华姚杏芬
Owner 广西科中大交通科技有限公司