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Preparation method of environment-friendly asphalt mixture additive

A kind of asphalt mixture and additive technology, which is applied in the direction of building insulation materials, building components, climate change adaptation, etc., can solve the problems of asphalt mixture with limited high temperature resistance and deformation resistance, easy to break, difficult to apply to special road surfaces, etc. , to achieve the effect of prolonging the service life, saving costs and improving stable performance

Active Publication Date: 2016-11-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can improve the high-temperature stability of road petroleum asphalt and the anti-rutting deformation ability of asphalt mixture within a certain range, but the asphalt mixture prepared by this method has limited high-temperature resistance ability and anti-vehicle deformation ability, and is easy to break, so it is not easy to apply in special road

Method used

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  • Preparation method of environment-friendly asphalt mixture additive
  • Preparation method of environment-friendly asphalt mixture additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The mass percentage of asphalt mixture additives is:

[0038] Powdery solids (70% of inorganic components and 30% of organic components): 65%;

[0039] Polyethylene (average molecular weight is about 6 million): 18%;

[0040] Potassium perfluorooctane sulfonate: 2wt%;

[0041] Carolamide: 8wt%;

[0042] Alkyl glycoside (R=C 10 , N=2): 7wt%;

[0043] Put the powdered solids, polyethylene, potassium perfluorooctyl sulfonate, carloamine, and alkyl glycosides into the single-screw extruder according to the proportion, mix and extrude the finished product uniformly to obtain the asphalt mixture additive; The temperature is 95°C.

[0044] The preparation method of the powdery solids in this embodiment is as follows: the oily sludge (in which the oil content is 43wt%, the solid content is 48wt%) is sent to the centrifuge, and the flocculant, namely cocamide, is added to the centrifuge. The mixture of propyl betaine and lignosulfonate (the mass ratio of the two is 2:1), the amount of flo...

Embodiment 2

[0046] The mass percentage of asphalt mixture additives is:

[0047] Powdery solids (70% of inorganic components and 30% of organic components): 75%;

[0048] Polyethylene (average molecular weight is about 6 million): 12%;

[0049] Potassium perfluorooctane sulfonate: 3wt%;

[0050] Carloamide: 6wt%;

[0051] Alkyl glycoside (R=C 12 , N=3): 4wt%;

[0052] Put the powdered solids, polyethylene, potassium perfluorooctyl sulfonate, carloamine, and alkyl glycosides into the single-screw extruder according to the proportion, mix and extrude the finished product uniformly to obtain the asphalt mixture additive; The temperature is 96°C.

[0053] The preparation method of the powdery solid in this embodiment is as follows: the oily sludge (in which the oil content is 43wt% and the solid content is 48wt%) is sent to the centrifuge, and the flocculant, namely cocamide, is added to the centrifuge. A mixture of propyl betaine and lignosulfonate (the mass ratio of the two is 2:1), the amount of flo...

Embodiment 3

[0055] The mass percentage of asphalt mixture additives is:

[0056] Powdery solids (80% of inorganic components and 25% of organic components): 85%;

[0057] Polyethylene (average molecular weight is about 6 million): 8%;

[0058] Sodium perfluorooctyl sulfonate: 1wt%;

[0059] Carolamide: 4wt%;

[0060] Alkyl glycoside (R=C 10 , N=2): 2wt%;

[0061] Put the powdered solids, polyethylene, potassium perfluorooctyl sulfonate, carloamine, and alkyl glycosides into the single-screw extruder according to the proportion, mix and extrude the finished product uniformly to obtain the asphalt mixture additive; The temperature is 95°C.

[0062] In this embodiment, the powdery solids are obtained by oily sludge (90wt% of oil content and 5wt% of solid content) through the sludge thermal extraction dehydration process. The process is as follows: the oily sludge is sent to the centrifuge, and The flocculant, namely polyacrylamide, is added to the centrifuge. The amount of flocculant added makes the f...

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Abstract

The invention discloses an environment-friendly asphalt mixture additive and a preparation method thereof. The environment-friendly asphalt mixture additive is prepared from, by weight, 55%-90% of powdery solids, 7%-20% of polyethylene, 1%-5% of a fluorocarbon surfactant, 1%-10% of Kaloamine and 1%-10% of alkyl glycoside. The preparation method comprises the following steps that the powdery materials, polyethylene, the fluorocarbon surfactant, Kaloamine and alkyl glycoside are put into a screw extruder in proportion, mixed to be uniform and extruded to obtain a finished product, and then the asphalt mixture additive is obtained. According to the asphalt mixture additive, the powdery solids generated after thermal extraction treatment of oily sludge can be fully reused and can be put into asphalt mixture production by replacing ore powder, environmental pollution is reduced, the cost is reduced, the rutting deformation resistance of the asphalt mixture is improved, and the service life of a pavement can be prolonged.

Description

Technical field [0001] The invention relates to a method for preparing an asphalt mixture additive, in particular to a method for preparing an asphalt mixture additive by using powdered solids produced after thermal extraction of oily sludge. Background technique [0002] In the daily operation and use of highways, rutting is a common disease of asphalt pavement in the summer high temperature season. In recent years, due to the continuous increase in traffic volume and the axle load of trucks, the number of rutting diseases on asphalt pavement is increasing, and the degree It has become more and more serious, especially on roads with heavy traffic and heavy vehicles. It seriously affects the quality of driving and endangers driving safety. How to avoid and solve rutting is a very important topic in highway design, construction, and maintenance. . The use of asphalt mixtures with strong anti-vehicle withdrawal ability in new construction or overhaul projects to minimize the occur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/06C08K13/02C08K3/36C08K3/22C08K5/1545C08K5/17C02F11/12C02F11/14C04B26/26
CPCY02A30/30
Inventor 杨飞飞回军陈闯李宝忠
Owner CHINA PETROLEUM & CHEM CORP
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