Characteristics and applications of polymer-modified asphalt

Mohammadreza Kamalinezhad¹ Mohammadreza Eskandari²

1) Master s student in Civil Engineering majoring in Transportation Engineering, Imam Khomeini International University, Qazvin, Iran
2) A faculty member at the Islamic Azad University, Karaj branch, Karaj, Iran

Publication : 9th.International Congress On Civil Engineering, Architecture & Urban Development(9icsau.ir)
Abstract :
Polymer modified asphalt is a type of asphalt that uses bitumen modified with polymer. However there are interpretations, for this type of asphalt which sometimes denotes a blend of bitumen, polymers and aggregate materials. Polymers are natural or synthetic materials that consist of compounds with high molecular weight and are made of multiple and repetitive connections. The purpose, behind incorporating polymers into other types of asphalt is to modify their chemical characteristics ultimately enhancing their longevity. Many polymers are used in the production of polymer asphalts, the most important of which include thermoplastics, thermosets, thermoplastic elastomers, polyurethanes, polyether polyester copolymers, olefinic copolymers, styrene block copolymers, etc.
Keywords : Polymer-modified asphalt reinforcing polymers advantages and disadvantages of polymer-modified asphalt applications of polymer-modified asphalt