Modified asphalt composition particle and preparation method thereof
A technology of modified asphalt and composition, applied in the field of petroleum asphalt, can solve problems such as increasing the difficulty of asphalt dispersion, and achieve the effect of improving quality
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[0044] Example 1
[0045] (1) Mix the high softening point asphalt I (softening point is 200℃) with kerosene to obtain mother liquor I (mixing mass ratio is 2:1), and then spray the mother liquor I evenly on the rubber powder particles (mass ratio of mother liquor to rubber powder particles) 1:1), after standing for 2 hours to infiltrate, and then under vacuum conditions (temperature 80℃, pressure ≤8kPa, time 2 hours) to remove the compatibilizer, the remaining materials are frozen (freezing temperature -35℃, freezing The time is 12 hours), pulverize to obtain modified rubber powder particles.
[0046] (2) Take 100g of high softening point asphalt II (softening point is 180°C) and 70g of kerosene in a container, stir at room temperature (25°C) for 30 minutes, and prepare mother liquor II after fully mixing; 60g modified rubber powder The particles and mother liquor II are mixed in the reactor, and compressed air is passed into it, the gas inlet pressure is 0.15MPa, the reactor tem...
Example Embodiment
[0048] Example 2
[0049] (1) Mix the high softening point asphalt I (softening point is 250℃) with diesel oil to obtain mother liquor I (mixing mass ratio is 1:1), and then spray the mother liquor I evenly on the rubber powder particles (the quality of mother liquor and rubber powder particles) The ratio is 2:1). After standing for 4 hours, the compatibilizer is removed under vacuum condition (temperature 100℃, pressure≤8kPa, time 1 hour), and the remaining materials are frozen (freezing temperature -25℃, freezing The time is 10 hours), pulverize to obtain modified rubber powder particles.
[0050] (2) Take 100g high softening point asphalt II (softening point is 220℃) and 50g diesel oil in a container, stir at 50℃ for 30 minutes at room temperature, and prepare mother liquor II after fully mixing; combine 100g modified rubber powder particles with The mother liquor II is mixed in the reactor, and compressed air is introduced. The gas inlet pressure is 0.25MPa. The reactor tempe...
Example Embodiment
[0052] Example 3
[0053] (1) Mix high softening point asphalt I (with a softening point of 140℃) and gasoline to obtain mother liquor I (mixing mass ratio is 3:1), and then spray the mother liquor I evenly on the rubber powder particles (the quality of mother liquor and rubber powder particles) The ratio is 3:1). After standing for 1 hour, the compatibilizer is removed under vacuum condition (temperature 50℃, pressure≤8kPa, time 1.5 hours), and the remaining materials are frozen (freezing temperature -30℃, freezing The time is 8 hours), pulverize to obtain modified rubber powder particles.
[0054] (2) Take 100g of high softening point asphalt II (with a softening point of 170℃) and 100g of gasoline in a container, stir at 80℃ for 35 minutes at room temperature, and prepare mother liquor II after thorough mixing; combine 120g of modified rubber powder particles with The mother liquor II is mixed in the reactor, and compressed air is introduced. The gas inlet pressure is 0.3MPa. ...
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