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Reclaimed asphalt mixture

A technology of recycled asphalt and mixture, applied in building insulation materials, building components, buildings, etc., can solve the problems of easy cracking of asphalt pavement, poor effect, and inactivation of asphalt performance, so as to improve high and low temperature performance, prevent loss, The effect of delaying the speed of aging

Inactive Publication Date: 2020-04-07
东莞广泰公路材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of conventional recycled asphalt mixture is not good after laying, and most of the aging asphalt performance is not activated, resulting in easy cracking of the asphalt pavement, and there are large defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A recycled asphalt mixture, comprising the following components in parts by weight: 100 parts of base asphalt, 20 parts of recycled asphalt treatment material, 3 parts of regeneration agent, 3 parts of SBS modifier, 3 parts of film-forming substance, 0.1 part of niobium carbide, 0.3 parts of zinc stearate, 2 parts of thickener.

[0023] Preferably, the regeneration agent is made by mixing furfural extract oil and aromatic oil at a weight ratio of 1:1.

[0024] Preferably, the thickener is formed by mixing rosin and calcium lignosulfonate in a weight ratio of 10:1.

[0025] Preferably, the film-forming substance is formed by mixing fluorocarbon resin and cottonseed oil in a weight ratio of 100:7.

[0026] Preferably, the recovered asphalt treatment material is obtained by soaking the recovered asphalt in 1-3 mol / ml sodium hydroxide solution for 1 hour, then washing with water and drying.

Embodiment 2

[0028] A recycled asphalt mixture, comprising the following components in parts by weight: 100 parts of base asphalt, 30 parts of recycled asphalt treatment material, 6 parts of regeneration agent, 3 parts of SBS modifier, 3 parts of film-forming substance, 0.1 part of niobium carbide, 0.3 parts of zinc stearate, 2 parts of thickener.

[0029] Preferably, the regeneration agent is made by mixing furfural extract oil and aromatic oil at a weight ratio of 1:1.

[0030] Preferably, the thickener is formed by mixing rosin and calcium lignosulfonate in a weight ratio of 10:1.

[0031] Preferably, the film-forming substance is formed by mixing silicone resin and linseed oil in a weight ratio of 100:7.

[0032] Preferably, the recovered asphalt treatment material is obtained by soaking the recovered asphalt in 1-3 mol / ml sodium hydroxide solution for 1 hour, then washing with water and drying.

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PUM

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Abstract

The invention provides a reclaimed asphalt mixture. The reclaimed asphalt mixture comprises the following components in parts by weight: 100 parts of matrix asphalt, 20-30 parts of a recycled asphalttreatment material, 3-6 parts of a regenerant, 1-3 parts of a modifier, 2-5 parts of a film-forming substance, 0.1-0.3 parts of niobium carbide, 0.2-0.5 parts of zinc stearate and 1-3 parts of a thickener. According to the reclaimed asphalt mixture, the performance of recycled asphalt in the reclaimed asphalt mixture can be activated and regenerated, the high and low temperature performance and the cracking resistance of the reclaimed asphalt mixture are improved, and the addition amount of new asphalt is remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of asphalt, in particular to a recycled asphalt mixture. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt can be divided into coal tar pitch, petroleum pitch and natural pitch. Among them, coal tar pitch is a by-product of coking, petroleum pitch is the residue after crude oil distillation, and natural pitch is stored underground, and some form ore layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads. [0003] As the peak period of my country's highway construction has passed, road maintenance has entered the normal state. Asphalt pavement is the main form of highway pav...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L93/04C08L97/00C08L53/02C08K13/02C08K3/14C08K5/098
CPCC08L95/00C08L2205/025C08L2205/035C08L2207/22C08L93/04C08L97/005C08L53/02C08K13/02C08K3/14C08K5/098
Inventor 翁力
Owner 东莞广泰公路材料科技有限公司
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