Anti-aging performance and mechanism analysis of styrene–butadiene–styrene modified bitumen containing antioxidant/cinnamic acid intercalated layered double hydroxides

To improve the aging resistance of bitumen for the construction of durable flexible pavement, the composite of antioxidants and cinnamic acid intercalated layered double hydroxides (CA-LDHs) were applied to modify-four styrene–butadienestyrene (SBS) modified bitumens (SMBs) aiming at revealing the anti-aging mechanism of different modifiers according to the aging behaviors of SMBs which were evaluated by the physical and rheological properties, …