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Composite polymer modified asphalt and preparing method of composite polymer modified asphalt

A technology of composite polymer and modified asphalt, applied in building structures, building components, building insulation materials, etc., can solve the problems of poor high temperature resistance, poor high temperature storage stability, difficult practical application, etc., to improve high temperature resistance. and high temperature storage stability, good anti-aging performance

Inactive Publication Date: 2014-09-24
无锡市鑫路道路材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common problems of polymer modified asphalt are that the anti-aging performance needs to be further improved, the high temperature resistance performance is poor, and the high temperature storage stability is poor, which causes difficulties in practical application and cannot fully meet the requirements of asphalt pavement use.

Method used

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  • Composite polymer modified asphalt and preparing method of composite polymer modified asphalt

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Experimental program
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Effect test

Embodiment 1

[0030] A composite polymer modified asphalt, the composite polymer modified emulsified asphalt contains the following raw materials in proportion by weight: 4 parts of SBS, 1 part of SBR, 1 part of EVA, 0.8 parts of LDPE, 9 parts of rubber oil, base asphalt 88 parts, 2 parts of anti-crack fiber, 3 parts of diatomaceous earth, the particle size is 130nm nano TiO 2 1.2 parts of anti-aging agent, 1.5 parts of polyester fiber stabilizer, the anti-cracking fiber is a mixture of basalt fiber, carbon fiber and asbestos fiber, and the weight ratio of the basalt fiber, carbon fiber and asbestos fiber is 1:2.5: 0.5.

[0031] Its preparation method specifically comprises the following steps:

[0032] (1) Weigh each raw material according to the weight ratio;

[0033] (2) Add SBS, SBR, EVA, LDPE and rubber oil into the modified mixing tank at a speed of 800r / min, and stir for 5-10 min;

[0034] (3) Then add base asphalt, while stirring, add anti-crack fiber, diatomaceous earth, and nan...

Embodiment 2

[0037] A composite polymer modified asphalt, the composite polymer modified emulsified asphalt contains the following raw materials in proportion by weight: 5 parts of SBS, 1.5 parts of SBR, 1.5 parts of EVA, 1.5 parts of LDPE, 10 parts of rubber oil, base asphalt 95 parts, 3 parts of anti-crack fiber, 5 parts of kaolin, particle size of 50nm nano-SiO 2 2 parts of anti-aging agent, 2 parts of lignin fiber stabilizer, the anti-cracking fiber is a mixture of basalt fiber, carbon fiber and asbestos fiber, and the weight ratio of the basalt fiber, carbon fiber and asbestos fiber is 1:3: 0.8.

[0038] Its preparation method specifically comprises the following steps:

[0039] (1) Weigh each raw material according to the weight ratio;

[0040] (2) Add SBS, SBR, EVA, LDPE and rubber oil into the modified mixing tank at a speed of 900r / min, and stir for 5-10 min;

[0041] (3) Then add base asphalt, while stirring, add anti-crack fiber, kaolin, and nano-SiO with a particle size of 5...

Embodiment 3

[0044] A composite polymer modified asphalt, the composite polymer modified emulsified asphalt contains the following raw materials in proportion by weight: 3 parts of SBS, 0.5 part of SBR, 0.5 part of EVA, 0.5 part of LDPE, 7 parts of rubber oil, base asphalt 80 parts, 1 part of anti-crack fiber, 2 parts of montmorillonite, the particle size is 200nm nanometer Fe 2 o 3 0.7 parts of anti-aging agent, 1 part of lignin fiber stabilizer, the anti-cracking fiber is a mixture of basalt fiber, carbon fiber and asbestos fiber, and the weight ratio of the basalt fiber, carbon fiber and asbestos fiber is 1:2: 0.3.

[0045] Its preparation method specifically comprises the following steps:

[0046] (1) Weigh each raw material according to the weight ratio;

[0047] (2) Add SBS, SBR, EVA, LDPE and rubber oil into the modified mixing tank at a speed of 1000r / min, and stir for 5-10 min;

[0048] (3) Then add base asphalt, while stirring, add anti-crack fiber, montmorillonite, and nano-...

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Abstract

The invention discloses composite polymer modified asphalt and a preparing method of the composite polymer modified asphalt. The composite polymer modified asphalt comprises, by weight, SBS, SBR, EVA, LDPE, rubber oil, matrix asphalt, crack resistant fibers, padding and nanometer age resisters. The preparing method of the composite polymer modified asphalt includes the steps of weighing the raw materials according to the weight proportion, adding the SBS, the SBR, the EVA, the LDPE and the rubber oil into a modification mixing tank, carrying out stirring at the rotation speed ranging from 800 r / min to 1000 r / min, then adding the matrix asphalt, sequentially adding the crack resistant fibers, the padding and the nanometer age resisters while stirring is carried out, carrying out stirring, heating the mixture to be at 195 DEG C to 235 DEG C, and carrying out high-speed shearing for 60 min to 90 min at the rotating speed ranging from 3000 r / min to 4000 r / min. The composite polymer modified asphalt is good in age resistance, the high-temperature resistance and the high-temperature storage stability are improved, and the asphalt road surface use requirement can be met.

Description

technical field [0001] The invention relates to the field of asphalt, in particular to a composite polymer modified asphalt and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy, the current road traffic is characterized by large traffic flow, heavy axle load, and high degree of channelization. Cracking and loosening, the performance requirements of asphalt materials are getting higher and higher. [0003] At present, various external modifiers are widely used in various countries in the world to improve the technical performance of asphalt. Among them, polymer modified asphalt is the most widely used and researched. However, the common problems of polymer-modified asphalt are that the anti-aging performance needs to be further improved, the high-temperature resistance performance is poor, and the high-temperature storage stability is poor, which causes difficulties in practical application and can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L9/06C08L23/08C08L23/06C08L67/00C08L97/02C08K13/04C08K7/12C08K7/06C08K3/04C08K7/10C08K3/22C08K3/36C08K3/34
Inventor 谢龙伟
Owner 无锡市鑫路道路材料有限公司
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