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Composite modified anti-rut agent and preparation method thereof

An anti-rutting agent and composite modification technology, which is applied in the field of road engineering materials, can solve the problems of infiltration of alkaline substances, occupation of land resources, and pollution of groundwater sources, etc., to achieve comprehensive cost reduction, significant environmental benefits, and excellent high-temperature anti-rutting performance and effect of low temperature cracking resistance

Active Publication Date: 2019-02-22
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, a large amount of red mud produced in the production process of electrolytic aluminum not only occupies a large amount of land resources, but also causes alkaline substances to infiltrate and pollute groundwater sources if improperly disposed of.

Method used

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  • Composite modified anti-rut agent and preparation method thereof
  • Composite modified anti-rut agent and preparation method thereof
  • Composite modified anti-rut agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. A composite modified anti-rutting agent, in terms of mass percentage, comprising the following components:

[0045]

[0046] The inorganic filler is a mixture of red mud and slaked lime in the sintering process of Shanlv Group, with a mass ratio of 9:1. The particle size of the regenerated thermoplastic polymer is 2-4 mm, and the particle size of the regenerated rubber powder is 40-80 mesh. The particle size of the inorganic filler is 200-400 mesh.

[0047] 2. The preparation method of the above-mentioned composite modified anti-rutting agent is as follows:

[0048] (1) Heat the recovered polyethylene to 170°C, add rubber oil and inorganic filler in sequence at a stirring speed of 100 rpm, and fully stir to form a premix;

[0049] (2) Add regenerated non-desulfurized rubber powder to the premix in step (1) and raise the temperature to 190° C., and stir for 5 minutes at a stirring speed of 300 rpm; then add a certain proportion of silane coupling agent, Change t...

Embodiment 2

[0052] 1. A composite modified anti-rutting agent, in terms of mass percentage, comprising the following components:

[0053]

[0054] The inorganic filler is a mixture of red mud and slaked lime in the sintering process of Shanlv Group, with a mass ratio of 8:2. The particle size of the regenerated thermoplastic polymer is 2-4 mm, and the particle size of the regenerated rubber powder is 40-80 mesh. The particle size of the inorganic filler is 200-400 mesh.

[0055] 2. The preparation method of the above-mentioned composite modified anti-rutting agent is as follows:

[0056] (1) Heating the recovered polypropylene to 180°C, adding aromatic oil and inorganic filler in sequence at a stirring speed of 200 rpm, and fully stirring to form a premix;

[0057] (2) Add regenerated desulfurized rubber powder to the premix and raise the temperature to 2000°C, and stir for 5 minutes at a stirring speed of 400rpm; then add a certain proportion of aluminate coupling agent, and replace...

Embodiment 3

[0060] 1. A composite modified anti-rutting agent, in terms of mass percentage, comprising the following components:

[0061]

[0062] The inorganic filler is a mixture of red mud and slaked lime in the sintering process of Shanlv Group, with a mass ratio of 7:3. The particle size of the regenerated thermoplastic polymer is 2-4 mm, and the particle size of the regenerated rubber powder is 40-80 mesh. The particle size of the inorganic filler is 200-400 mesh.

[0063] 2. The preparation method of the above-mentioned composite modified anti-rutting agent is as follows:

[0064] (1) Heating the recovered polyvinyl chloride to 180°C, adding aromatic oil and inorganic filler in sequence at a stirring speed of 300 rpm, and fully stirring to form a premix;

[0065] (2) Add regenerated non-desulfurized rubber powder to the premix and raise the temperature to 205°C, and stir for 5 minutes at a stirring speed of 500rpm; then add a certain proportion of aluminum-titanium composite c...

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Abstract

The invention relates to a composite modified anti-rut agent and belongs to the field of road engineering materials. The composite modified anti-rut agent comprises the following components in percentage by mass: 40-70% of a regenerative thermoplastic polymer, 10-30% of recycled rubber powder, 5-15% of an inorganic filler, 1-5% of a coupling agent, 2-8% of a co-solvent and 1-5% of lignin fibers. According to physical and chemical properties of solid wastes, a certain amount of additives are added for organic combination, and the asphalt mixture anti-rut agent is prepared, so that the high andlow temperature performances of the asphalt mixture are obviously improved. Meanwhile, according to productive raw materials, multiple solid wastes can be effectively utilized, obvious environmental benefits are achieved, and the overall cost of the anti-rut agent can be reduced.

Description

technical field [0001] The invention belongs to the field of road engineering materials, in particular to an asphalt mixture anti-rutting agent prepared by using recycled polymers and solid wastes and a preparation method thereof. Background technique [0002] With the increasing traffic volume of expressways in my country and the characteristics of heavy axle load and channelized traffic, asphalt pavement is prone to significant permanent deformation and rutting accumulation under the action of high temperature and continuous load. The appearance of rutting on asphalt pavement seriously affects the service quality of high-grade pavement and driving safety, and directly affects the service life of asphalt pavement, resulting in the increase of maintenance cost and constitutes a safety hazard of transportation. In response to this problem, road workers at home and abroad have carried out a series of research work. In terms of material additives, a series of technologies such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42C04B24/40C04B24/00C04B26/26C04B103/60
CPCC04B26/26C04B40/0046C04B2103/60C04B2111/0075C04B24/2611C04B24/001C04B22/0006C04B22/064C04B24/42C04B24/08C04B18/26C04B24/00C04B24/40C04B14/28C04B14/14
Inventor 张吉哲姚占勇孙昌军梁明蒋红光李沛钊
Owner SHANDONG UNIV
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