High-toughness composite SBR modified asphalt for warm-mixed asphalt technology, and preparation method thereof
A technology of warm-mixed asphalt and modified asphalt, which is applied to coagulation pavement paved on site, building insulation materials, building components, etc. It can solve problems such as viscosity and toughness of asphalt that are not mentioned, and achieve improved water stability and anti-aging Performance, improving adhesion performance, improving the effect of asphalt viscosity and toughness
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Embodiment 1
[0032] A composite SBR modified asphalt, the main raw material: No. 70 asphalt, produced by SK Company in South Korea, and the trade name of SBR asphalt modifier—PC1468, produced by Meadwestvaco.
[0033] Based on the total mass of modified asphalt raw materials, weigh 95 Kg (95%) of No. 70 asphalt, 3.8 Kg (3.8%) of asphalt modifier PC1468, 1 Kg (1%) of alkyl condensate, and 0.2 Kg of sulfur stabilizer (0.2%) reserve;
[0034] A preparation method of composite SBR modified asphalt, carried out according to the following steps:
[0035] (1) Put 95 Kg of No. 70 asphalt into a heating and stirring container, heat it to 120-160°C, make it melt completely, and stir while keeping warm;
[0036] (2) Add 3.8 Kg of asphalt modifier PC1468 and 1 Kg of alkyl condensate to the above molten No. 70 asphalt, and stir to mix;
[0037] (3) Raise the temperature to 160-180°C; add 0.2 Kg of sulfur as a stabilizer, stir and mix evenly, and discharge the material from the heating and stirring c...
Embodiment 2
[0039] A composite SBR modified asphalt, the main raw material: No. 70 asphalt, produced by SK Company in South Korea, and the trade name of SBR asphalt modifier—PC1468, produced by Meadwestvaco.
[0040] Based on the total mass of modified asphalt raw materials, weigh 93.8 Kg (93.8%) of No. 70 asphalt, 6 Kg (6%) of asphalt modifier PC1468, 3 Kg (3%) of alkyl condensate, and 1.2 Kg of stabilizer sulfur ( 1.2%) for reserve;
[0041] A preparation method of composite SBR modified asphalt, carried out according to the following steps:
[0042] (1) Put 93.8 Kg of No. 70 asphalt into a heating and stirring container, heat it to 120-160°C, make it melt completely, and stir while keeping warm;
[0043] (2) Add 6 Kg of asphalt modifier PC1468 and 3 Kg of alkyl condensate to the above molten No. 70 asphalt, and stir and mix;
[0044](3) Raise the temperature to 160-180°C; add 1.2 Kg of sulfur as a stabilizer, stir and mix evenly, and discharge the material from the heating and stirr...
Embodiment 3
[0046] A composite SBR modified asphalt, the main raw material: No. 70 asphalt produced by SK Corporation of Korea, the trade name of SBR asphalt modifier - PC1468, produced by Meadwestvaco.
[0047] Based on the total mass of modified asphalt raw materials, after the asphalt is heated and melted, weigh 85 Kg of No. 70 asphalt, asphalt modifier PC1468 8 Kg (8%), alkyl condensate 5 Kg (5%), stabilizer sulfur 2 Kg (2%) spare;
[0048] A preparation method of composite SBR modified asphalt, carried out according to the following steps:
[0049] (1) Put 85 Kg of No. 70 asphalt into a heating and stirring container, heat it to 120-160°C, make it melt completely, and stir while keeping warm;
[0050] (2) Add 8 Kg of asphalt modifier PC1468 and 5 Kg of alkyl condensate to the above molten No. 70 asphalt, and stir and mix;
[0051] (3) Raise the temperature to 160-180°C; add 2 Kg of sulfur as a stabilizer, stir and mix evenly, and discharge the material from the heating and stirrin...
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