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.
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[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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