What is Polymer Modified Bitumen?
What are the Advantages of Polymer Modified Bitumen?
Polymer Modified Bitumen (PMB) is a special type of conventional bitumen strengthened with polymer additives. Bitumen is known as the most common binder material in asphalt production; however, standard bitumen can deform over time under heavy traffic and climate conditions. Therefore, by adding polymer additives to bitumen, both flexibility and durability are increased. The polymer types used are elastomers and plastomers. While elastomers improve the elastic properties of asphalt, plastomers provide hardness and strength. The resulting mixture provides a longer-lasting and higher-performance road surface. You can visit the web address https://mag-trade.com/en/products/bitumen-facilities/bitumen-tanks/polymer-modified/ for detailed information about Polymer Modified Bitumen.
What is the Production Process of Polymer Modified Bitumen?
Polymer Modified Bitumen offers many advantages beyond conventional bitumen. Firstly, it is more resistant to temperature changes. It does not soften and deform at high temperatures in the summer; nor does it become brittle at low temperatures in the winter. This feature ensures that roads are used without problems for a long time. Polymer Modified Bitumen shows stronger resistance to heavy traffic loads. It prevents asphalt from cracking, especially in areas with heavy truck and heavy vehicle traffic. Its greater resistance to water and moisture makes PMB indispensable in regions with heavy rainfall and flood risk. Polymer Modified Bitumen is produced by heating conventional bitumen to a certain temperature and adding polymer additives to the mixture. In the first step, the bitumen is heated until it reaches a homogeneous consistency. Then, the selected polymer type is slowly added to the mixture and a homogeneous mixture is obtained by high-speed mixers for several hours. The temperature of the mixture and the mixing speed determine the bitumen-polymer compatibility and the final quality of the PMB. The type and proportion of the polymer used in the production process, as well as the viscosity of the bitumen, directly affect the quality. This process plays a critical role in PMB gaining its superior performance characteristics.
