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Preparation method of modified asphalt with good comprehensive performance

A technology of comprehensive performance and modified asphalt, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of demanding performance and the performance of modified asphalt needs to be improved, so as to achieve insensitivity to temperature changes and solve the problem of storage stability , the effect of prolonging the service life

Inactive Publication Date: 2018-08-24
FOSHAN LUBANG ASPHALT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the construction of roads and bridges at home and abroad, the performance requirements of asphalt materials are becoming more and more stringent. It is required to resist rutting at high temperature, not crack at low temperature, resist water damage, etc., and hope to have a long service life. However, the existing ordinary Asphalt does not meet these requirements, so it needs to be modified
[0003] However, the performance of the existing modified asphalt still needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for preparing modified asphalt with good comprehensive performance, which is made of the following parts by weight of raw materials: 100 parts of base asphalt, 5 parts of compound modifier, 1.2 parts of compatibilizer, 2 parts of surfactant, and chemical additives 1.5 copies.

[0035] Wherein, the base asphalt is road petroleum asphalt; the surfactant is a quaternary ammonium salt type cationic surfactant; the compatibilizer is furfural extract oil; the chemical additives are composed of sulfur, methyl ethyl ketone and butyronitrile The mass ratio is 56:20:15.

[0036] The composite modifier is mixed with modified SBS powder, modified diatomaceous earth, and RET asphalt modifier in a weight ratio of 2:1:1.

[0037] Wherein, the method for preparing the modified SBS powder is: taking 10 parts by weight of SBS polymer, 0.06 parts of vinyl trimethoxysilane, 1.2 parts of maleic anhydride and 0.6 parts of methyl methacrylate into 15 parts by weight. Into the cyclohexane,...

Embodiment 2

[0047] A method for preparing modified asphalt with good comprehensive performance, which is made of the following parts by weight of raw materials: 100 parts of base asphalt, 4 parts of composite modifier, 1.0 part of compatibilizer, 0.2 part of surfactant, and chemical additives 1 serving.

[0048] Wherein, the base asphalt is road petroleum asphalt; the surfactant is a quaternary ammonium salt type cationic surfactant; the compatibilizer is furfural extract oil; the chemical additives are composed of sulfur, methyl ethyl ketone and butyronitrile The mass ratio is 56:20:15.

[0049] The composite modifier is mixed with modified SBS powder, modified diatomaceous earth, and RET asphalt modifier in a weight ratio of 2:1:1.

[0050] Wherein, the preparation method of the modified SBS powder is: taking 10 parts of SBS polymer, 0.05 parts of vinyl trimethoxysilane, 1 part of maleic anhydride and 0.5 part of methyl methacrylate in parts by weight and adding 15 parts by weight. Into the ...

Embodiment 3

[0060] A method for preparing modified asphalt with good comprehensive performance, which is made from the following parts by weight of raw materials: 100 parts of base asphalt, 6 parts of composite modifier, 1.5 parts of compatibilizer, 3 parts of surfactant, and chemical additives 2 servings.

[0061] Wherein, the base asphalt is road petroleum asphalt; the surfactant is a quaternary ammonium salt type cationic surfactant; the compatibilizer is furfural extract oil; the chemical additives are composed of sulfur, methyl ethyl ketone and butyronitrile The mass ratio is 56:20:15.

[0062] The composite modifier is mixed with modified SBS powder, modified diatomaceous earth, and RET asphalt modifier in a weight ratio of 2:1:1.

[0063] Wherein, the preparation method of the modified SBS powder is: taking 10 parts by weight of SBS polymer, 0.08 parts of vinyl trimethoxysilane, 1.7 parts of maleic anhydride and 0.8 parts of methyl methacrylate into 15 parts by weight. Into the cyclohex...

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Abstract

The invention discloses a preparation method of modified asphalt with good comprehensive performance. The modified asphalt is prepared from the following raw materials in parts by weight: 100 parts ofmatrix asphalt, 4 to 6 parts of compound modifying agent, 1.0 to 1.5 parts of compatilizer, 0.2 to 3 parts of surfactant and 1 to 2 parts of chemical auxiliary agent. The modified asphalt provided bythe invention has a specific proportion so that the problem of storage stability of SBS (Styrene-Butadiene-Styrene) modified asphalt is solved very well, the high-temperature stability of an asphaltpavement can be remarkably improved and the low-temperature anti-cracking performance of the asphalt pavement is improved; the modified asphalt has the advantage that the modified asphalt is not sensitive to temperature change; indexes including the needle penetration, softening point, ductility and the like of the modified asphalt are comprehensively improved and the service life of the asphalt pavement is prolonged.

Description

Technical field [0001] The invention relates to the technical field of road building materials, in particular to a method for preparing modified asphalt with good comprehensive performance. Background technique [0002] Asphalt has excellent plasticity and cohesiveness, and has a long history of being used as paving materials for roads and bridges. my country has a vast territory, and the natural environment such as temperature, humidity, and light varies greatly from north to south. With the rapid development of my country's national economy and the rapid increase in traffic, ordinary asphalt concrete pavements are facing severe challenges. In the construction of roads and bridges at home and abroad, the performance requirements of asphalt materials are becoming more and more stringent. They require resistance to rutting at high temperatures, no cracking at low temperatures, and resistance to water damage. They also hope to have a longer service life. Asphalt cannot meet these ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08L51/00C08L23/08C08K13/06C08K3/06C08K5/315C08K9/00C08K9/04C08K9/02C08K7/26
CPCC08L95/00C08L2201/08C08L2205/035C08L91/00C08L51/006C08L23/08C08K13/06C08K3/06C08K5/315C08K9/00C08K9/04C08K9/08C08K9/02C08K7/26
Inventor 何岳霖何元发陈宇轩杜小挺傅世君
Owner FOSHAN LUBANG ASPHALT CO LTD
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