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A thermally regenerated asphalt structure layer utilizing waste engine oil residue and its construction method

A residue and thermal regeneration technology, applied in the field of pavement, can solve the problems of pollution, waste of resources, environment, and impurities that cannot be effectively recycled, and achieve the effects of reducing costs, saving processing costs, and saving road paving materials

Active Publication Date: 2020-06-16
山东高速材料技术开发集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through these processes, generally 70-80% of waste engine oil can be effectively recycled, and the remaining 20-30% can not be effectively recovered due to the large amount of impurities mixed in, so it becomes the real residue of waste engine oil
In recent years, the domestic recycling rate of used engine oil is increasing rapidly, but a large amount of waste engine oil residues are directly discarded, resulting in waste of resources and environmental pollution

Method used

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  • A thermally regenerated asphalt structure layer utilizing waste engine oil residue and its construction method
  • A thermally regenerated asphalt structure layer utilizing waste engine oil residue and its construction method
  • A thermally regenerated asphalt structure layer utilizing waste engine oil residue and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Taking the aggregate and recycled asphalt pavement materials with a total mass of 100kg as an example, the raw materials and their mass ratios for paving the thermally recycled asphalt structural layer using waste engine oil residues are as follows:

[0034]

[0035] The above-mentioned aggregates are limestone aggregates with a particle size of 0.075-26.5 mm; recycled asphalt pavement materials are waste materials with a particle size of 0.075-19 mm after milling, crushing and screening of old asphalt pavement; mineral powder is made of limestone Mineral powder with calcium carbonate as the main component and particle size less than 0.075mm obtained through fine grinding; asphalt binder is No. 70 road petroleum asphalt; waste engine oil residue is liquid industrial waste produced after waste engine oil recycling and processing.

[0036] The paving method of the thermally regenerated asphalt structural layer using waste engine oil residues above is as follows:

[003...

Embodiment 2

[0050] Taking the aggregate and recycled asphalt pavement materials with a total mass of 100kg as an example, the raw materials and their mass ratios for paving the thermally recycled asphalt structural layer using waste engine oil residues are as follows:

[0051]

[0052] The above-mentioned aggregates, recycled asphalt pavement materials, mineral powder, asphalt binder and waste engine oil residue are the same as in Example 1; the construction method is the same as in Example 1.

Embodiment 3

[0054] Taking the aggregate and recycled asphalt pavement materials with a total mass of 100kg as an example, the raw materials and their mass ratios for paving the thermally recycled asphalt structural layer using waste engine oil residues are as follows:

[0055]

[0056] The above-mentioned aggregate, reclaimed asphalt pavement material, mineral powder, asphalt binder and waste engine oil residue are the same as in Example 1; the construction method is the same as in Example 1

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Abstract

The invention discloses a heat regeneration asphalt structure layer using waste engine oil residues and a construction method of the structure layer. The structure layer comprises, by weight, 75 parts of aggregates, 25 parts of recovered asphalt pavement materials, 3 parts of mineral powder, 3 parts of asphalt binders and 2 parts of waste engine oil residues. The construction method includes the steps: recovery of waste asphalt pavement materials; treatment of a lower bearing layer; sprinkle of cloth adhesive layers; stirring and paving; compaction; inspection of quality. Results of a lot of indoor research experiments show that road performance indexes of the structure layer completely meet standard requirements issued by a transport ministry, the structure layer has water stability and low-temperature cracking resistance and can effectively utilize industrial waste residues generated by an old engine oil treatment industry with high environment hazards, parts of asphalt cementing materials are replaced, energy is saved, environments are protected, sustainable development of economic society is facilitated, and the structure layer can be widely applied to pavement engineering fields such as urban roads, airport roads and highways.

Description

technical field [0001] The invention belongs to the technical field of pavements such as urban roads, airport roads and highways, and in particular relates to a thermally regenerated asphalt structural layer utilizing waste engine oil residues and a construction method thereof. Background technique [0002] With the rapid development of highway construction, the mileage of expressways in my country has exceeded 130,000 kilometers, and the total mileage of highways of all levels has reached more than 4 million kilometers, of which more than 95% are asphalt pavement structures. Every year, tens of millions of tons of waste asphalt mixture will be produced in the overhaul of asphalt pavement of highways and national and provincial highways. The stacking of waste asphalt mixture not only occupies a large amount of land resources, but also causes serious environmental pollution. Petroleum asphalt, which is commonly used for pavement, is a hydrocarbon refined from crude oil. Its m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B24/00
CPCC04B24/001C04B26/26C04B2111/00017C04B2111/0075C04B18/167C04B18/12C04B18/0481C04B14/28
Inventor 郭德栋陈颖李新军李晋
Owner 山东高速材料技术开发集团有限公司
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