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Modified recycled asphalt mixture and processing technology thereof

A technology for reclaiming asphalt and mixture, applied in the field of asphalt mixture, can solve problems such as being susceptible to rutting disease and affecting the service life of pavement, and achieve the effect of improving rutting resistance, impact resistance and toughness, and excellent comprehensive performance.

Active Publication Date: 2021-12-10
浙江弼土新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the current asphalt mixture paved road surface is susceptible to rutting disease, and when the rutting disease is serious, it will affect the service life of the road surface. Improved to extend life when used again

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0048]The application discloses a modified recycled asphalt mixture and its processing technology; a modified recycled asphalt mixture, including the following components: recycled asphalt old material, asphalt new material, coarse aggregate, filler, regeneration agent, hydroxyformaldehyde base polystyrene resin, diallylaminomethoxyacetanilide, guar gum; wherein, the regeneration agent includes the following raw materials in parts by weight: 15 parts of rosin resin; 5 parts of furfural oil; 3 parts of triphenyl phosphite ; 1 part POE-g-MAH; 2 parts allyl butyl ether.

[0049] A processing technology for modified recycled asphalt mixture, comprising the steps of:

[0050] S1. Preparation of regenerant; first, stir triphenyl phosphite, POE-g-MAH and allyl butyl ether at a temperature of 80°C for 30 minutes; stir rosin resin and furfural oil at 80°C for 25 minutes The obtained mixture was continuously added and stirred for 10 minutes to obtain the regenerant;

[0051] S2. Prepa...

Embodiment 2

[0055] The application discloses a modified recycled asphalt mixture and its processing technology; a modified recycled asphalt mixture, including the following components: recycled asphalt old material, asphalt new material, coarse aggregate, filler, regeneration agent, hydroxyformaldehyde base polystyrene resin, diallylaminomethoxyacetanilide, guar gum; wherein, the regeneration agent includes the following raw materials in parts by weight: 20 parts of rosin resin; 6 parts of furfural oil; 4 parts of triphenyl phosphite ; 2 parts POE-g-MAH; 3 parts allyl butyl ether.

[0056] A processing technology for modified recycled asphalt mixture, comprising the steps of:

[0057] S1. Preparation of regenerant; first, stir triphenyl phosphite, POE-g-MAH and allyl butyl ether at a temperature of 90°C for 40 minutes; stir rosin resin and furfural oil at 90°C for 30 minutes The obtained mixture was continuously added and stirred for 15 minutes to obtain the regenerant;

[0058] S2. Pre...

Embodiment 3

[0062] The application discloses a modified recycled asphalt mixture and its processing technology; a modified recycled asphalt mixture, including the following components: recycled asphalt old material, asphalt new material, coarse aggregate, filler, regeneration agent, hydroxyformaldehyde base polystyrene resin, diallylaminomethoxyacetanilide, guar gum; wherein, the regeneration agent includes the following raw materials in parts by weight: 18 parts of rosin resin; 6 parts of furfural oil; 3 parts of triphenyl phosphite ; 2 parts POE-g-MAH; 3 parts allyl butyl ether.

[0063] A processing technology for modified recycled asphalt mixture, comprising the steps of:

[0064] S1. Preparation of regenerant; first, stir triphenyl phosphite, POE-g-MAH and allyl butyl ether at a temperature of 85°C for 35 minutes; stir rosin resin and furfural oil at 85°C for 28 minutes The obtained mixture was continuously added and stirred for 12 minutes to obtain the regenerant;

[0065] S2. Pre...

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PUM

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Abstract

The invention relates to a modified recycled asphalt mixture and a processing technology thereof. The modified recycled asphalt mixture comprises the following components in parts by weight: 50-60 parts of recycled asphalt old material; 10-12 parts of a new asphalt material; 8-10 parts of coarse aggregate; 2-4 parts of a filler; 2-3 parts of a regenerant; 9-12 parts of hydroxyl methyl polystyrene resin; 1-3 parts of diallyl amino methoxy acetanilide; and 2-3 parts of guar gum. The invention relates to a processing technology of a modified recycled asphalt mixture. The processing technology comprises preparation of a regenerant and preparation of the recycled asphalt mixture. Compared with the prior art, the method has the following advantages and effects that the diallyl amino methoxy acetanilide is highly crosslinked with the hydroxymethylpolystyrene resin at a high temperature, the comprehensive performance is excellent, and the diallyl amino methoxy acetanilide is further blended with the old asphalt material and the new asphalt material to generate a relatively strong binding force in the presence of guar gum, so that the obtained regenerated asphalt mixture is tightly combined, the coarse aggregate and a filler are further added, so that the impact resistance and the toughness are improved, and the rutting resistance of the asphalt mixture is further improved.

Description

technical field [0001] The application relates to the technical field of asphalt mixture, in particular to a modified recycled asphalt mixture and its processing technology. Background technique [0002] After more than ten years of rapid development of my country's highways, a large number of asphalt pavements will enter the period of major and medium repairs. Compared with traditional asphalt pavement maintenance methods, asphalt pavement regeneration can save a lot of raw materials such as asphalt, sand and gravel, and save engineering investment. At the same time, it is beneficial to deal with waste and protect the environment, so it has significant economic benefits, social and environmental benefits; with people's attention to environmental protection and social benefits, and technological progress, asphalt pavement recycling technology has attracted more and more attention. . [0003] Existing publication number is that the Chinese patent of CN112227143A discloses a ki...

Claims

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Application Information

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IPC IPC(8): C04B26/26
CPCC04B26/26C04B2111/0075C04B2111/00017C04B18/16C04B18/141C04B14/02C04B24/2676C04B24/124C04B24/38C04B24/34C04B24/003C04B24/023C04B24/008C04B24/26
Inventor 陈泓州杨再恒
Owner 浙江弼土新材料有限公司
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