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SBS modified asphalt auxiliary agent and SBS modified asphalt

A technology of modified asphalt and additives, which is applied in the field of SBS modified asphalt additives and SBS modified asphalt. Viscosity, the effect of improving anti-aging performance

Active Publication Date: 2019-04-02
SUZHOU TOPOLINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, judging from the current use situation, the most likely quality problems of SBS modified asphalt are that the stability, ductility and aging ductility are not up to standard.

Method used

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  • SBS modified asphalt auxiliary agent and SBS modified asphalt
  • SBS modified asphalt auxiliary agent and SBS modified asphalt

Examples

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preparation example Construction

[0021] The present invention also provides a preparation method of SBS modified asphalt additive. The preparation method comprises: heating 50 to 100 parts of white oil at a temperature of 50°C to 70°C, so that the viscosity of the white oil becomes thinner, which is more beneficial to other raw materials Mixing of components: adding 30-50 parts of modified sulfur, 0.5-2 parts of antioxidant, 1-5 parts of suspension aid, and 1-5 parts of plasticizer, stirring and mixing evenly to obtain SBS modified asphalt additive. Wherein, the order of adding 30-50 parts of modified sulfur, 0.5-2 parts of antioxidant, 1-5 parts of suspension aid and 1-5 parts of plasticizer is not particularly limited.

[0022] In a preferred embodiment, the modified sulfur includes the following raw material components in parts by mass: 5-10 parts of aluminum hydroxide, 5-10 parts of magnesium hydroxide, 50-200 parts of water, 50-100 parts of sulfur, 5-10 parts of Polymer wax emulsion, 0.1-1 part of coupli...

Embodiment 1

[0031] Mix 5 parts of 2000-mesh aluminum hydroxide, 5 parts of 2000-mesh magnesium hydroxide and 100 parts of water to prepare an inorganic powder suspension; add 0.3 parts of silane coupling agent, grind to 15 μm, and disperse evenly to obtain an inorganic powder suspension; Add 5 parts of oxidized polyethylene wax emulsion to the inorganic powder suspension, and stir for 30 minutes; then add 50 parts of 200-mesh industrial sulfur, and stir for 60 minutes to obtain a mixture of inorganic powder / polymer wax / sulfur. The above mixture was dried and dehydrated at 80°C, crushed and sieved (200 mesh) to obtain modified sulfur.

[0032] Heat 50 parts of 100# industrial white oil to 50°C, add 0.5 parts of antioxidant 1010, 2 parts of mineral oil emulsifier, 2 parts of dioctyl phthalate, 30 parts of modified sulfur prepared above, and stir for 30 minutes , and stir evenly to obtain the SBS modified asphalt additive of this embodiment.

Embodiment 2

[0034] Mix 8 parts of 3000 mesh aluminum hydroxide, 8 parts of 4000 mesh magnesium hydroxide and 200 parts of water to prepare an inorganic powder suspension; add 1 part of titanate coupling agent, grind to 13 μm, and disperse evenly to obtain an inorganic powder suspension Add 10 parts of oxidized polyethylene wax emulsion to the inorganic powder suspension and stir for 60 minutes; then add 100 parts of 300-mesh industrial sulfur and stir for 120 minutes to obtain a mixture of inorganic powder / polymer wax / sulfur. The above mixture was dried and dehydrated at 80°C, crushed and sieved (200 mesh) to obtain modified sulfur.

[0035] Heat 100 parts of 100# industrial white oil to 60°C, add 2 parts of antioxidant 1076, 5 parts of mineral oil emulsifier, 5 parts of dioctyl maleate, and 50 parts of the modified sulfur prepared above, and stir for 60 minutes. Stir evenly to obtain the SBS modified asphalt additive of this embodiment.

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Abstract

The invention relates to the technical field of asphalt materials, particularly discloses an SBS modified asphalt auxiliary agent and SBS modified asphalt, wherein the SBS modified asphalt auxiliary agent comprises the following raw materials by mass: 30-50 parts of modified sulfur, 50-100 parts of white oil, 0.5-2 parts of an antioxidant, 1-5 parts of a suspending aid, and 1-5 parts of a plasticizer. According to the present invention, by adding the SBS modified asphalt auxiliary agent to the SBS modified asphalt, the storage stability, the ductility and the aging ductility of the SBS modified asphalt can be significantly improved.

Description

technical field [0001] The invention relates to the technical field of asphalt materials, in particular to an SBS modified asphalt additive and SBS modified asphalt. Background technique [0002] With the increase of traffic volume, heavy load and overload are increasing, coupled with climate change and hot weather, the performance requirements of asphalt pavement are also increasing. . At present, ordinary asphalt is difficult to meet the requirements, and asphalt needs to be modified. SBS modified asphalt is the most widely used modified asphalt. [0003] SBS modified asphalt is a colloid mill that grinds SBS (styrene-butadiene-styrene triblock copolymer) resin into very fine particles. It is a temporarily stable system physically mixed with asphalt, which is prone to segregation. Adding auxiliary The additive can effectively improve the stability, ductility and aging ductility of SBS modified asphalt. However, judging from the current use situation, the most likely qua...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L91/06C08K13/06C08K9/10C08K3/06C08K3/22
CPCC08K2003/2224C08K2003/2227C08L91/06C08L95/00C08L2205/025C08L2205/035C08K13/06C08K9/10C08K3/06C08K3/22C08L53/02
Inventor 牛艳辉陈悬
Owner SUZHOU TOPOLINE TECH
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