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Waste grease premixed reinforced asphalt mixture and preparation method thereof

A technology of asphalt mixture and premix, which is applied in the direction of climate change adaptation, etc., can solve the problems of high energy consumption, a large amount of harmful greenhouse gas emissions, etc., and achieve easy operation, good road performance and environmental protection benefits, and excellent use performance effect

Inactive Publication Date: 2017-12-22
CHANGAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a kind of waste oil ready-mixed reinforced asphalt mixture and its preparation method, which solves the problem of good utilization of waste oil and high energy consumption in the process of asphalt mixture road paving. , a large amount of greenhouse gas and harmful gas emissions and other issues

Method used

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  • Waste grease premixed reinforced asphalt mixture and preparation method thereof
  • Waste grease premixed reinforced asphalt mixture and preparation method thereof
  • Waste grease premixed reinforced asphalt mixture and preparation method thereof

Examples

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preparation example Construction

[0024] The preparation method of waste and old grease ready-mixed reinforced asphalt mixture of the present invention specifically comprises the following steps:

[0025] First, add 1.5% to 2.5% of the waste oil into the SK70# base asphalt, and stir it evenly at 125-145°C for 30 minutes to develop the waste oil soft asphalt. Viscosity-temperature curves determine that the heating temperature of waste oil soft asphalt is 130-140°C. Before preparing waste oil soft asphalt, heat SK70# base asphalt and waste oil to 135-140°C respectively;

[0026] Secondly, use waste oil soft asphalt to pre-mix the aggregate to improve the construction workability of the asphalt mixture, and prepare the ready-mix material. The mass ratio of waste oil soft asphalt to aggregate (that is, the asphalt ratio) is 4.8%. Before pre-mixing, first heat the aggregate to 155-165°C in an oven, and heat the waste oil soft asphalt to 135-140°C, then stir the heated aggregate in an asphalt mixer for 90s, and fina...

Embodiment 1

[0031] In this example, the preparation method of waste oil ready-mixed reinforced asphalt mixture is as follows:

[0032] First, add 2.0% waste oil into SK70# matrix asphalt, and stir it evenly at 125-145°C for 30 minutes to prepare waste oil soft asphalt, and use the viscosity-temperature curve to determine the waste oil The heating temperature of soft asphalt is 135°C. Before producing waste oil soft asphalt, first heat SK70# base asphalt and waste oil to 135-140°C;

[0033] Secondly, waste oil soft asphalt is used to pre-mix the aggregate to improve the construction workability of the asphalt mixture, and the ready-mix material is prepared. The mass ratio of waste oil soft asphalt to aggregate is 4.8%. Before pre-mixing, First heat the aggregate to 155-165°C in an oven, heat the waste oil soft asphalt to 130-140°C, then stir the heated aggregate in an asphalt mixer for 90s, and finally add a predetermined amount of waste oil soft asphalt Stir the high-quality asphalt for ...

Embodiment 2

[0037] In this example, the preparation method of waste oil ready-mixed reinforced asphalt mixture is as follows:

[0038] First, add 2.0% waste oil into SK70# matrix asphalt, and stir it evenly at 125-145°C for 30 minutes to prepare waste oil soft asphalt, and use the viscosity-temperature curve to determine the waste oil The heating temperature of soft asphalt is 135°C. Before producing waste oil soft asphalt, first heat SK70# base asphalt and waste oil to 130-140°C;

[0039]Secondly, waste oil soft asphalt is used to pre-mix the aggregate to improve the construction workability of the asphalt mixture, and the ready-mix material is prepared. The mass ratio of waste oil soft asphalt to aggregate is 4.8%. Before pre-mixing, First heat the aggregate to 155-165°C in an oven, heat the waste oil soft asphalt to 135-140°C, then stir the heated aggregate in an asphalt mixer for 90s, and finally add a predetermined amount of waste oil soft asphalt Stir the high-quality asphalt for 6...

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Abstract

The invention discloses a waste grease premixed reinforced asphalt mixture and a preparation method thereof. The preparation method comprises the following steps: step 1, adding 1.5 to 2.5 percent o waste grease into matrix asphalt, uniformly stirring, developing, and obtaining waste grease soft asphalt; step 2, premixing aggregates by using the waste grease soft asphalt prepared in step 1, and obtaining a premixed material; step 3, re-mixing the premixed material obtained in step 2 by using rock asphalt powder, and obtaining a remixed material; step 4, adding mineral powder into the remixed material obtained in step 3, and uniformly mixing, thus obtaining the waste grease premixed reinforced asphalt mixture. The waste grease premixed reinforced asphalt mixture can well use the waste grease and can solve the problems in the asphalt mixture pavement laying process such as high energy consumption, emission of a great amount of greenhouse gas and harmful gas and the like.

Description

technical field [0001] The invention relates to the technical field of waste utilization and asphalt mixture pavement energy saving and environmental protection, in particular to a waste oil premixed reinforced asphalt mixture and a preparation method thereof. Background technique [0002] At present, the vast majority of high-grade roads in my country are paved with asphalt mixtures. During the construction process, there are problems such as high energy consumption, large amounts of greenhouse gas and harmful gas emissions, which are contrary to the construction of ecological civilization in our country. Although there is currently a warm mix technology that adds warm mix agent to the asphalt mixture to achieve energy saving and emission reduction, this technology will increase construction costs and require special production equipment, and some warm mix agent residues will also affect the asphalt mixture. Some road performance of the vehicle will be adversely affected. ...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B24/00
CPCC04B24/001C04B26/26C04B2201/50C04B14/04C04B14/28Y02A30/30
Inventor 张争奇张伟王洪海王秀丽徐耀辉韩金华张世豪王素青连超杨建华
Owner CHANGAN UNIV
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