Modified asphalt and preparation method thereof as well as mixture containing same
A technology of modified asphalt and mixture, which is applied in building insulation materials, building components, buildings, etc., and can solve the problems that the high and low temperature performance of asphalt pavement cannot be completely solved.
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example 1
[0035] Example 1: Modified Bitumen
[0036] Heat 100 parts of base asphalt to 140°C, put 2 parts of natural lake asphalt and 5 parts of plant asphalt into the base asphalt and stir for 50 minutes to obtain the first mixture; At a temperature of 190°C, 2 parts of SBS were put into the first mixture and sheared for 58 minutes to obtain the second mixture; Put 1 part of LDPE into the second mixture and react for 60 minutes to obtain the third mixture; at a temperature of 175°C, add 10 parts of aromatic oil to the third mixture while stirring the third mixture, and continue stirring after adding the aromatic oil 30 minutes, thereby obtaining the modified asphalt of example 1.
example 2
[0037] Example 2: Modified Bitumen
[0038] Heat 100 parts of base asphalt to 135°C, put 6 parts of natural lake asphalt and 8 parts of plant asphalt into the base asphalt and stir for 45 minutes to obtain the first mixture; At a temperature of 195°C, put 10 parts of SB into the first mixture and cut it for 30 minutes to obtain the second mixture; put the second mixture into the asphalt reaction tank, and at a temperature of 195°C, add 40 parts of waste tire rubber powder and Put 3 parts of LLDPE into the second mixture and react for 70 minutes to obtain the third mixture; at a temperature of 162°C, add 9 parts of aromatic oil to the third mixture while stirring the third mixture, and continue stirring after adding the aromatic oil 60 minutes, thereby obtaining the modified asphalt of Example 2.
example 3
[0039] Example 3: Modified Bitumen
[0040] Heat 100 parts of base asphalt to 150°C, put 5 parts of natural rock asphalt and 10 parts of vegetable asphalt into the base asphalt and stir for 35 minutes to obtain the first mixture; send the first mixture into a high-speed shear tank, and heat it at 192°C At a temperature of 180°C, 8 parts of SBS were put into the first mixture and sheared for 35 minutes to obtain the second mixture; Put 5 parts of LDPE into the second mixture and react for 78 minutes to obtain the third mixture; at a temperature of 165°C, add 18 parts of aromatic oil to the third mixture while stirring the third mixture, and continue stirring after adding the aromatic oil 60 minutes, thereby obtaining the modified asphalt of Example 3.
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