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Hot mix plant recycling high-modulus asphalt mixture and preparation method thereof

An asphalt mixture and thermal regeneration technology, applied in the field of asphalt mixture, can solve the problems of insufficient fusion of new and old asphalt, low stiffness modulus, etc., and achieve the effects of easy implementation, improved solubility, and easy storage.

Active Publication Date: 2021-04-16
重庆质能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing production process, the stiffness modulus is not high due to factors such as serious aging, old materials with aggregate structure and insufficient fusion of old and new asphalt.

Method used

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  • Hot mix plant recycling high-modulus asphalt mixture and preparation method thereof
  • Hot mix plant recycling high-modulus asphalt mixture and preparation method thereof
  • Hot mix plant recycling high-modulus asphalt mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The old milling material in this embodiment is recovered by layered milling of the original asphalt pavement, crushed and processed into a suitable particle size, and then subjected to plant mixing and thermal regeneration.

[0031] Wherein, the factory-mixed hot-recycled high-modulus asphalt mixture of this embodiment includes the following components: in parts by weight, 40 parts of old milling material, 1 part of new asphalt, 35 parts of new aggregate, and 1 part of mineral powder and 1 part of auxiliary agent; said auxiliary agent includes the following components in parts by weight: 30 parts of low density polyethylene, 20 parts of high density polyethylene, 13 parts of methyl styrene block copolymer, 10 parts of polyacrylonitrile , 15 parts of high modulus agent, 5 parts of warm mixing agent and 10 parts of regeneration agent.

[0032] Specifically, the high modulus agent is formed by mixing epoxy resin, calcium sulfate whiskers and carboxymethyl cellulose calcium...

Embodiment 2

[0058] The preparation method of the asphalt mixture in this embodiment is the same as in Embodiment 1, and will not be repeated here.

[0059] In this embodiment, the asphalt mixture includes the following components: 50 parts of milling old material, 4 parts of new asphalt, 50 parts of new aggregate, 6 parts of mineral powder and 4 parts of auxiliary agent; wherein, the auxiliary agent includes the following Components in parts by weight: 40 parts of low density polyethylene, 25 parts of high density polyethylene, 16 parts of methyl styrene block copolymer, 20 parts of polyacrylonitrile, 20 parts of high modulus agent, 8 parts of warm mixing agent parts and 15 parts of regeneration agent.

Embodiment 3

[0061] The preparation method of the asphalt mixture in this embodiment is the same as in Embodiment 1, and will not be repeated here.

[0062] In this embodiment, the asphalt mixture includes the following components: 45 parts of milling old material, 3 parts of new asphalt, 40 parts of new aggregate, 5 parts of mineral powder and 3 parts of auxiliary agent; wherein, the auxiliary agent includes the following Components in parts by weight: 35 parts of low density polyethylene, 23 parts of high density polyethylene, 15 parts of methyl styrene block copolymer, 15 parts of polyacrylonitrile, 18 parts of high modulus agent, 7 parts of warm mixing agent 12 parts and regeneration agent.

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Abstract

The invention relates to the technical field of asphalt mixtures, in particular to a hot mix plant recycling high-modulus asphalt mixture and a preparation method thereof. The asphalt mixture comprises the following components in parts by weight: 40-50 parts of milled old materials, 1-4 parts of new asphalt, 35-50 parts of new aggregate, 1-6 parts of mineral powder and 1-4 parts of auxiliary agent, wherein the auxiliary agent comprises the following components in parts by weight: 30-40 parts of low-density polyethylene, 20-25 parts of high-density polyethylene, 13-16 parts of a methyl styrene block copolymer, 10-20 parts of polyacrylonitrile, 15-20 parts of a high modulus agent, 5-8 parts of a warm mixing agent and 10-15 parts of a regenerant. The invention aims to provide the hot mix plant recycling high-modulus asphalt mixture and the preparation method thereof. The asphalt mixture has relatively high stiffness modulus and stable performance.

Description

technical field [0001] The invention relates to the technical field of asphalt mixture, in particular to a plant-mixed heat-recycled high-modulus asphalt mixture and a preparation method thereof. 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, as well as technological progress, asphalt pavement recycling technology has attracted more and more attention. . [0003] Plant mixing hot regeneration is to transport the old as...

Claims

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Application Information

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IPC IPC(8): C04B26/26
CPCY02W30/91
Inventor 卞曙刚鲁和联刘涛罗静谢富强
Owner 重庆质能环保科技有限公司
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