Abstract
In order to adapt to complex and severe climate change, the increasing traffic flow, and axial load, researchers devoted themselves to producing the bitumens which have excellent aging resistance, high temperature stability, low temperature crack resistance. All kinds of anti-aging inorganic nanomaterials, which contain nano-TiO2, nano-ZnO, nanoclay, etc., light stabilizer and antioxidants have been the focus of considerable research. Through the introduction of different anti-ageing inorganic nanomaterial’s research status and the elaboration of its mechanism, this paper summarizes the research achievements of various anti-aging inorganic nano-modifiers used in bitumen modification. Based on the research outcome so far, this paper analyzes dispersion and compatibility of anti-aging materials in asphalt and looks forward to the future development of the technology of ageing prevention for bitumen.
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