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Compound regenerative asphalt concrete

A technology of asphalt concrete and composite regeneration, which is applied in the field of building materials, and can solve the problems of limited performance of mixture materials and ineffective effects.

Inactive Publication Date: 2016-08-10
BEIJING SAINT GROUND HIGHWAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the material composition of emulsified asphalt plant mixed cold recycled mixture is mainly RAP material, emulsified asphalt, cement and water. The performance of the mixture material is limited, and it has not played a very good role.

Method used

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  • Compound regenerative asphalt concrete

Examples

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Effect test

Embodiment 1

[0020] A composite recycled asphalt concrete prepared from the following components in parts by weight:

[0021] 30 parts of 0-5mm recycled asphalt concrete RAP, 25 parts of 5-10mm recycled asphalt concrete RAP, 28 parts of 10-30mm recycled asphalt concrete RAP, 15 parts of 10-30mm new aggregate, 2 parts of mineral powder, 1.5 parts of cement, 3.5 parts of emulsified asphalt, And 0.5 parts of regeneration agent.

[0022] In the described composite recycled asphalt concrete, the regeneration agent includes the following components by weight:

[0023] Waste tire refining 30 parts, cement 5 parts, asphalt phase solvent 5 parts, aggregate surface hydrophobic agent 0.02 parts, emulsifier 2.0 parts; stabilizer 0.2 parts, water 30 parts, hydrochloric acid 1 part, modified asphalt 54 parts.

[0024] In the described composite recycled asphalt concrete, the modified asphalt includes the following components by weight:

[0025] 43 parts of ordinary asphalt; 5 parts of melamine pyropho...

Embodiment 2

[0032] A composite recycled asphalt concrete prepared from the following components in parts by weight:

[0033] 30 parts of 0-5mm recycled asphalt concrete RAP, 25 parts of 5-10mm recycled asphalt concrete RAP, 28 parts of 10-30mm recycled asphalt concrete RAP, 15 parts of 10-30mm new aggregate, 2 parts of mineral powder, 1.5 parts of cement, 4.2 parts of emulsified asphalt, And 1.5 parts of regeneration agent.

[0034] In the described composite recycled asphalt concrete, the regeneration agent includes the following components by weight:

[0035] Waste tire refining 40 parts, cement 25 parts, asphalt phase solvent 50 parts, aggregate surface hydrophobic agent 5 parts, emulsifier 3.0 parts; stabilizer 1.0 parts, water 38 parts, hydrochloric acid 4 parts, modified asphalt 62 parts.

[0036] In the described composite recycled asphalt concrete, the modified asphalt includes the following components by weight:

[0037] 52 parts of ordinary asphalt; 8 parts of melamine pyropho...

Embodiment 3

[0044] A composite recycled asphalt concrete prepared from the following components in parts by weight:

[0045] 30 parts of 0-5mm recycled asphalt concrete RAP, 25 parts of 5-10mm recycled asphalt concrete RAP, 28 parts of 10-30mm recycled asphalt concrete RAP, 15 parts of 10-30mm new aggregate, 2 parts of mineral powder, 1.5 parts of cement, 4 parts of emulsified asphalt, 1 part of regeneration agent.

[0046] In the described composite recycled asphalt concrete, the regeneration agent includes the following components by weight:

[0047] Waste tire refining 35 parts, cement 13 parts, asphalt phase solvent 21 parts, aggregate surface hydrophobic agent 0.8 parts, emulsifier 2.4 parts; stabilizer 0.6 parts, water 34 parts, hydrochloric acid 2 parts, modified asphalt 56 parts.

[0048] In the described composite recycled asphalt concrete, the modified asphalt includes the following components by weight:

[0049] 47 parts of ordinary asphalt; 6 parts of melamine pyrophosphate;...

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Abstract

The invention provides compound regenerative asphalt concrete, which is prepared from the following ingredients (by weight): 30 parts of 0-5 mm regenerative asphalt concrete RAP, 25 parts of 5-10 mm regenerative asphalt concrete RAP, 28 parts of 10-30 mm regenerative asphalt concrete RAP, 15 parts of 10-30 mm new aggregate, 2 parts of mineral powder, 1.5 parts of cement, 3.5-4.2 parts of emulsified asphalt and 0.5-1.5 parts of a regenerant. By adding a certain proportion of the regenerant, an asphalt pavemill material undergoes compound regeneration. Thus, material performance of a regenerated mixture is enhanced. Voidage is lower, the material is more compact, moisture damage resistance is stronger, and durability is better.

Description

technical field [0001] The invention belongs to the field of building materials. More specifically, the present invention relates to a composite recycled asphalt concrete. Background technique [0002] At present, the material composition of emulsified asphalt plant mixed cold recycled mixture is mainly RAP material, emulsified asphalt, cement and water. The performance of the mixture material is limited, and it has not played a good role. Contents of the invention [0003] In order to solve the above problems, the present invention provides a composite recycled asphalt concrete, which is prepared from the following components by weight: [0004] 30 parts of 0-5mm recycled asphalt concrete RAP, 25 parts of 5-10mm recycled asphalt concrete RAP, 28 parts of 10-30mm recycled asphalt concrete RAP, 15 parts of 10-30mm new aggregate, 2 parts of mineral powder, 1.5 parts of cement, 3.5-4.2 parts of emulsified asphalt parts, and 0.5-1.5 parts of regeneration agent. [0005] Pre...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/16
CPCC04B28/00C04B24/36C04B18/16C04B18/12C04B18/049C04B22/122Y02W30/91
Inventor 孙斌刘辉明陈京钰江涛
Owner BEIJING SAINT GROUND HIGHWAY TECH
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