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Anti-rutting agent

An anti-rutting agent and surfactant technology, used in building components, building insulation materials, buildings, etc., can solve the problems of unsatisfactory anti-rutting performance, insufficient toughness, and poor deformation recovery ability of pavement.

Inactive Publication Date: 2017-01-18
吉林市城投筑路材料有限公司
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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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  • Anti-rutting agent

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preparation example Construction

[0034] In a second aspect, the present invention provides a method for preparing an anti-rutting agent, comprising the following steps:

[0035] providing the anti-rutting agent of the first aspect;

[0036] In an atmosphere isolated from air or nitrogen, heat polyolefin and polyphenylene sulfide to 270-290 degrees Celsius, and after cooling down to 140-170 degrees Celsius, add surfactants and reactive surfactants to fully mix and disperse, so that the polyolefin coating Cover polyphenylene sulfide to obtain anti-rutting agent.

[0037] In the third aspect, the present invention provides asphalt mixture, including the anti-rutting agent in the first aspect.

[0038] According to the asphalt mixture described in the third aspect, the anti-rutting agent accounts for 0.1%-1% of the total mass of the asphalt mixture.

[0039] In a fourth aspect, the present invention provides a method for preparing asphalt mixture, comprising the following steps:

[0040] providing the asphalt ...

Embodiment 1

[0045] 100 parts by weight of polyolefin

[0046] Surfactant 2 parts by weight

[0047] 8 parts by weight of polyphenylene sulfide

[0048] The polyolefin is linear low density polyethylene, Sinopec DFDC-7570, the surfactant is Penetol GE-ID, polyphenylene sulfide, Torelina® A670X01 Toray Japan.

[0049] Raise the temperature of polyolefin and polyphenylene sulfide to 280 degrees Celsius and cool down to 140-170 degrees Celsius, then add surfactant and reactive surfactant to fully mix and disperse, so that polyolefin is coated with polyphenylene sulfide to obtain an anti-rutting agent. The anti-rutting agent and asphalt prepared above are used as raw materials, and the temperature is raised to 150-170 degrees Celsius to obtain the modified asphalt.

[0050] The modified asphalt prepared above is used as the cementing material, and the asphalt mixture is prepared by using the asphalt macadam mixture SMA-5 as the asphalt mixture type of the bridge deck pavement in accordance w...

Embodiment 2

[0052] 100 parts by weight of polyolefin

[0053] 1 part by weight of surfactant

[0054] 10 parts by weight of polyphenylene sulfide

[0055] The polyolefin is polyethylene, Qatar Petrochemical, MG70, the surfactant is Penetol GE-EH, polyphenylene sulfide, Torelina® A670X01 Toray Japan.

[0056] Raise the temperature of polyolefin and polyphenylene sulfide to 280 degrees Celsius and cool down to 140-170 degrees Celsius, then add surfactant and reactive surfactant to fully mix and disperse, so that polyolefin is coated with polyphenylene sulfide to obtain an anti-rutting agent. The anti-rutting agent and asphalt prepared above are used as raw materials, and the temperature is raised to 150-170 degrees Celsius to obtain the modified asphalt.

[0057] The modified asphalt prepared above is used as the cementing material, and the asphalt mixture is prepared by using the asphalt macadam mixture SMA-5 as the asphalt mixture type of the bridge deck pavement in accordance with my c...

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Abstract

An anti-rut agent consists of 100 parts by weight of polyolefin, 1-5 parts by weight of reactivity surfactant and 2-10 parts by weight of polyphenylene sulfide, wherein the surfactant is of a side chain structure, the melting point of the polyolefin is 80-130 DEG C, and the average molecular weight of the polyphenylene sulfide is between 10,000 and 50,000. As the polyphenylene sulfide has a high smelting point, the polyolefin is promoted to form a network structure in asphalt with the polyphenylene sulfide as a nucleation center, and the anti-rut performance of an asphalt mixture is improved.

Description

technical field [0001] The present invention relates to anti-rutting agents, in particular to patented IPC classification C08L95 / 00. 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 JTG H20-2007", according to the depth of the rut, it can be divided into two types: light rut and heavy rut. The light rut is shallow and the depth is between 10 and 15mm; The depth is 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 mainly fluid ruts; severe ruts with a depth greater than 35mm are mainly fluid ruts and structural ruts. The main reasons for rutting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L23/06C08L23/08C08L23/16C08L81/02C08K5/37
Inventor 刘彦光
Owner 吉林市城投筑路材料有限公司