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A kind of waste oil-based modified bio-asphalt, bio-asphalt mixture and preparation method thereof

A technology of bio-asphalt and mixture, which is applied in the direction of building structure, building insulation materials, building components, etc., can solve the problems that cannot meet the technical requirements of road engineering, poor adhesion, low softening point, etc., and achieve good environmental and economic benefits , strong adhesion, and the effect of meeting road performance requirements

Active Publication Date: 2019-02-01
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, waste oil-based bio-asphalt has a low softening point, low viscosity, and poor adhesion, which cannot meet the technical requirements of road engineering.

Method used

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  • A kind of waste oil-based modified bio-asphalt, bio-asphalt mixture and preparation method thereof
  • A kind of waste oil-based modified bio-asphalt, bio-asphalt mixture and preparation method thereof
  • A kind of waste oil-based modified bio-asphalt, bio-asphalt mixture and preparation method thereof

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preparation example Construction

[0022] In the preparation method of the modified bio-asphalt mixture in this embodiment, the waste oil-based modified bio-asphalt is heated to 183°C, the mineral material is heated to 183°C, and the waste-oil-based modified bio-asphalt is mixed with the ore The modified bio-asphalt mixture is obtained after the materials are evenly stirred.

[0023] The raw materials used in this embodiment are all commercially available products.

[0024] The waste oil residue used in this embodiment is the residue left after refining biodiesel from waste oil.

[0025] In the preparation method of waste oil-based modified bio-asphalt in this embodiment, the modifier is hard asphalt particles, resin, LDPE recycled plastic and linear SBS.

Embodiment 1

[0028] A preparation method of waste oil-based modified bio-asphalt in this embodiment is carried out according to the following steps:

[0029] 1. Weigh 190g of waste oil residue, 169g of hard asphalt granules, 132.5g of resin, 8g of LDPE recycled plastic and 20g of linear SBS;

[0030] 2. Heat the waste oil residue weighed in step 1 to 170°C, add the hard asphalt particles weighed in step 1, stir for 30min at a temperature of 170°C and a stirring rate of 400rpm, and then Shear at 4000rpm for 45min; then add the resin weighed in step 1, and stir for 60min at a temperature of 170°C and a stirring rate of 400rpm; then add the LDPE recycled plastic and linear SBS weighed in step 1, Stir at a temperature of 155°C and a stirring rate of 400rpm for 40min, then shear at a temperature of 170°C and a shear rate of 4000rpm for 50min; finally stir and develop at a temperature of 155°C and a stirring rate of 400rpm for 15min, Waste oil-based modified bio-asphalt is obtained.

Embodiment 2

[0032] A preparation method of waste oil-based modified bio-asphalt in this embodiment is carried out according to the following steps:

[0033] 1. Weigh 181.5g of waste oil residue, 143g of hard asphalt granules, 170g of resin, 6g of LDPE recycled plastic and 20g of linear SBS;

[0034] Two, preparation steps are the same as embodiment one.

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Abstract

The invention relates to highway pavement materials, and discloses to swill-cooked dirty oil based modified biological asphalt, a biological asphalt mixture and a preparation method thereof. The modified biological asphalt material comprises the following components in percentage by mass: 33.3-38% of swill-cooked dirty oil residues, 28.6-33.8% of hard asphalt particles, 26.5-34% of resin, 1.2-4.6% of low-density polyethylene (LDPE) reprocessed plastics, and 3-5% of linear SBS (Styrene Butadiene Styrene). The preparation method comprises the following steps: heating the swill-cooked dirty oil residues to be 170 DEG C; uniformly adding the hard asphalt particles; stirring for 30 minutes; shearing for 45 minutes (4000r / min) until the swill-cooked dirty oil residues and the hard asphalt particles are uniformly compatible; uniformly adding the resin; stirring for 60 minutes until the mixture is uniform; cooling until the temperature reaches 155 DEG C; adding SBS and LDPE; continuously stirring and swelling for 40 minutes; shearing for 50 minutes (increasing the temperature to be 170 DEG C, shearing at the speed of 4000r / min); and then stirring to develop for 15 minutes (decreasing the temperature to be 155 DEG C). According to the method, a novel method for directly utilizing the residues obtained after extracting biodiesel from waste grease and reprocessed plastics is provided, and thus a new way is developed for energy conservation and waste recycling.

Description

technical field [0001] The invention relates to waste oil-based modified bio-asphalt, a bio-asphalt mixture and a preparation method thereof, and belongs to the technical field of asphalt in road engineering. Background technique [0002] With the rapid development of my country's highway construction, the consumption of asphalt has been increasing. From 2006 to 2015, the apparent consumption of asphalt in China rose from 13.52 million tons to 27.24 million tons. Asphalt binder for roads mainly comes from petroleum, and as a non-renewable resource, petroleum is facing a crisis of imbalance between supply and demand. In addition, traditional petroleum asphalt has some defects in road performance, which need further research and improvement. Therefore, there is an urgent need to develop a new type of binder to partially or completely replace the existing petroleum asphalt. [0003] Bio-asphalt is an alternative to petroleum asphalt derived from non-petroleum-based renewable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L101/00C08L23/06C08L53/02C08K5/103
CPCC08L95/00C08L101/00C08L2205/035C08L2207/066C08L23/06C08L53/02C08K5/103
Inventor 孙大权孙国强鲁童庞琦施沈越吴颂阳孙艳娜
Owner TONGJI UNIV
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