Study on the Preparation and Performance of M-phenylene Unsaturated Polyester Resin Modified Asphalt for Bridge Deck Pavement
In order to enhance the crack resistance of bridge deck pavement and simultaneously mitigate water-in-duced diseases such as potholes,this study developed a m-phenylene unsaturated polyester resin(UP)modified asphalt mixtures for bridge deck pavement and investigated the formulation and performance.The optimal formula-tion of UP modified asphalt was determined through viscosity,dynamic shear rheology(DSR),and tensile tests.Subsequently,the rheological and tensile properties of the modified asphalt were examined.Finally,comparative e-valuations were conducted on road performance of UP modified asphalt mixtures.The results show that UP modified asphalt exhibits excellent high-temperature rheological properties,and surpasses those of SBS-modified asphalt significantly.Moreover,UP modified asphalt demonstrates superior flexibility compared to epoxy modified asphalt and has a more cost-effectiveness with a price approximately 57%lower than that of epoxy asphalt.Additionally,the tensile properties and high temperature stability of UP modified asphalt mixtures are significantly better than those of SBS-modified asphalt mixtures.They have better resistance to cracking at low temperatures and water-induced damage,compared with epoxy asphalt mixtures.
NETL
NSTL
万方数据
