Research on Viscoelasticity of Modifi ed Bitumen Containing LDHs Anti-UV Aging Agent

• 作 者: 刘星 WU Shaopeng 刘刚 MA Shankui
• 机 构: State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology,
• 出 处: Journal of Wuhan University of Technology(Materials Science
• 发表日期: 2004年期
• 关键词: viscoelastic rheometer blending asphalt pavement modulus creep stiffness Aging c

We applied LDHs to modify the bitumen by melt blending, and studied the viscoelasticity of LDHs modifi ed bitumen by means of dynamic shear rheometer(DSR). The creep test was used to evaluate the viscoelastic behavior. The experimental results indicated that, due to the addition of the LDHs, the viscoelastic properties of modifi ed bitumen were superior to those of pristine bitumen. Therefore, the LDHs would be an alternative to modifi ers used in the bitumen to improve the UV-aging resistance during the service of asphalt pavement.

We applied LDHs to modify the bitumen by melt blending, and studied the viscoelasticity of LDHs modifi ed bitumen by means of dynamic shear rheometer (DSR). The creep test was used to evaluate the viscoelastic behavior. The experimental results indicated that, due to the addition of the LDHs, the viscoelastic properties of modifi ed bitumen were superior to those of pristine bitumen. Thus, the LDHs would be an alternative to modifi ers used in the bitumen to improve the UV-aging resistance during the service of asphalt pavement.