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Warm-mixing anti-ultraviolet aging asphalt and preparation method thereof

An anti-ultraviolet aging and asphalt technology, which is applied in the direction of climate change adaptation, building insulation materials, building components, etc., can solve the problems of insignificant anti-ultraviolet aging effect, high production energy consumption, and insignificant anti-ultraviolet aging ability, etc.

Active Publication Date: 2018-07-13
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this invention, aggregates of various specifications, SBS modified asphalt, nano titanium dioxide powder and inorganic aluminosilicate are used to prepare asphalt mixture with anti-ultraviolet aging performance, but the anti-ultraviolet aging ability prepared by this method is not significant
[0009] To sum up, there are technical problems such as insignificant anti-ultraviolet aging effect, complex production process and high production energy consumption in the prior art, and there is no method that can simultaneously improve the anti-ultraviolet aging performance of SBS modified asphalt and reduce its construction temperature method

Method used

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  • Warm-mixing anti-ultraviolet aging asphalt and preparation method thereof
  • Warm-mixing anti-ultraviolet aging asphalt and preparation method thereof
  • Warm-mixing anti-ultraviolet aging asphalt and preparation method thereof

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preparation example Construction

[0044] The embodiment of the present application can also provide a method for preparing the warm-mix anti-ultraviolet aging asphalt, characterized in that the method comprises:

[0045] Heat 100 parts of SBS modified asphalt to 165-180°C in a mixer with heating function, add 1-4 parts of light stabilizer, and keep stirring, and control the stirring speed at 700-1200 rpm; adjust When the temperature in the agitator is stabilized at 170°C, add 0.1 to 0.5 parts of absorbent; and keep the stirring speed and temperature of the agitator stable, add 0.5 to 2.5 parts of warm agitating agent after 30 minutes, and continue After reacting for 0.5-1 hour, the warm-mix anti-ultraviolet aging asphalt is obtained.

[0046] Further, after heating 100 parts of SBS modified asphalt to 170° C. in a stirrer with heating function, 1 to 4 parts of light stabilizer are added.

[0047] Further, the stirring rate was controlled at 1000 rpm.

Embodiment 1

[0050] Heat 96.6Kg of SBS modified asphalt to 170°C in a mixer, add 3Kg of light stabilizer hindered amine substances, keep stirring, and control the stirring speed at 1000 rpm. Keep the temperature of the mixture stable at 170°C, add 0.4Kg absorbent C13H11N3O, keep the stirrer stirring and keep the temperature stable, add 1.5Kg warm mix agent polyethylene wax after 30min, and continue the reaction for 1h to prepare warm mix anti-ultraviolet aging asphalt.

Embodiment 2

[0052] Heat 96Kg of SBS modified asphalt to 170°C in a mixer, add 3.4Kg of light stabilizer hindered amine substances, keep stirring, and control the stirring speed at 1000 rpm. Keep the temperature of the mixture stable at 170°C, add 0.6Kg absorbent C13H11N3O, keep the agitator stirring and keep the temperature stable, add 2.0Kg warm mix agent polyethylene wax after 30min, and continue the reaction for 1h to prepare warm mix anti-ultraviolet aging asphalt.

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Abstract

The invention discloses warm-mixing anti-ultraviolet aging asphalt and a preparation method thereof. The asphalt is prepared from the following raw materials in parts by weight: 100 parts of SBS (Styrene-Butadiene-Styrene) modified asphalt, 1 to 4 parts of light stabilizing agent, 0.1 to 0.5 part of absorbent and 0.5 to 2.5 parts of warm-mixing agent. The warm-mixing anti-ultraviolet aging asphaltprepared by the preparation method of the warm-mixing anti-ultraviolet aging asphalt has remarkable anti-ultraviolet aging performance and also has good high-temperature-resisting performance and low-temperature anti-cracking performance; the service life of an asphalt road surface can be greatly prolonged and the construction temperature also can be effectively reduced; in a construction process, energy source consumption is saved and the environment protection is facilitated.

Description

technical field [0001] The invention relates to the technical field of asphalt preparation, in particular to an environmentally friendly and economical warm-mix anti-aging product which has remarkable anti-ultraviolet aging effect, can effectively reduce road surface diseases caused by ultraviolet radiation, and has a warm-mix effect, which can effectively reduce the construction temperature of the road surface. UV-aged asphalt and method for its preparation. Background technique [0002] In our country, plateau areas occupy a quarter of the territory, and road projects should be vigorously developed and constructed in these areas. To control wealth, build roads first. This is a traditional measure in our country. The construction of road infrastructure in alpine regions is a major project. With the rapid development of highway construction in our country, asphalt pavement is also widely used in areas with high ultraviolet radiation, such as Tibet, Qinghai, Inner Mongolia a...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L23/06C08K5/00
CPCC08L95/00C08L2201/08C08L2205/03C08L53/02C08L23/06C08K5/005Y02A30/30
Inventor 时敬涛贾逸龙袁野李剑新李纯王体宏
Owner PETROCHINA CO LTD
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