Research Article
Research on Rejuvenation of Styrene-Butadiene-Styrene Block Copolymer Modified Asphalt with Rejuvenating Agent Based on Pre-Mixing Method
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 |  | Rejuvenatingagent content, % | High temperaturecritical temperature, °C | Low temperaturecritical temperature, °C | PG |  | 
 |  | 0 | >82 | −11.0 | PG70-10 |  | 4 | >82 | −16.2 | PG70-16 |  | 8 | 78.7 | −20.7 | PG70-16 |  | 12 | 76.3 | −21.9 | PG70-16 |  | 16 | 71.8 | −23.2 | PG70-22 |  | 
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