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A modified recycled asphalt mixture and its processing technology

A technology of recycled asphalt and mixture, which is applied in the field of asphalt mixture, which can solve the problems of susceptibility to rutting and affecting the service life of the road surface, and achieve the effect of improving rutting resistance, impact resistance and toughness, and excellent comprehensive performance

Active Publication Date: 2022-04-19
浙江弼土新材料股份有限公司
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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
Comparison scheme
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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Abstract

The application relates to a modified recycled asphalt mixture and its processing technology. A modified recycled asphalt mixture includes the following components in parts by weight: 50-60 parts of recycled asphalt old material; 10-12 parts of new asphalt material; 8 ‑10 parts of coarse aggregate; 2‑4 parts of filler; 2‑3 parts of regenerant; 9‑12 parts of hydroxymethyl polystyrene resin; 1‑3 parts of diallylaminomethoxyacetanilide; 2‑3 Part guar gum; a processing technology of modified recycled asphalt mixture, including the preparation of regeneration agent and the preparation of recycled asphalt mixture. The application has the following advantages and effects: Diallylaminomethoxyacetanilide is highly cross-linked with hydroxymethyl polystyrene resin at high temperature, has excellent comprehensive performance, and can be further blended with asphalt old material and asphalt new material , in the presence of guar gum, a strong binding force is produced, so that the obtained recycled asphalt mixture is closely combined, and the further addition of coarse aggregate and filler improves the impact resistance and toughness, and further improves the anti-rutting performance of the asphalt mixture .

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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Patent Type & Authority Patents(China)
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 浙江弼土新材料股份有限公司
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