Modifying Effect and Mechanism of Polymer Powder on the Properties of Asphalt Binder for Engineering Application
Wensheng Zhao,
Xiaolong Sun,
Zhixin Ou
et al.
Abstract:For achieving the better modifying effect of polyurethane on asphalt pavement materials, the PUA powder modifier was prepared with fine grinding at the glass transition temperature, and polyurethane-modified asphalt (PUA-MA) with different dosages of modifier was prepared. The impact of the PUA on the physical properties of asphalt binder was studied. The modifying mechanism of PUA on asphalt was explored by investigating the thermal performance and chemical composition of asphalt (thermogravimetric analysis, … Show more
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