العربية

Polymer Modified Bitumen

Polymer Modified Bitumen

PMB Is A Modified Bitumen In Which Polymers Are Added To The Bitumen   To Improve Its Characteristics .They Prevent the asphalt from softening in the summer when the temperature on the road surface may exceed 150ºF during the winter months polymers prevent the cracking that occurs when the road surface contracts. on the other words w e can say that polymers are changing the ELASTO-VISCOUS behavior of the bitumen binder more suitable for stress

The Standard Polymer in use to avoid either condition is

  1. SBS (Styrene Butadiene Styrene)
  2. EVA (Ethylene And Vinyl Acetate Copolymer)
  3. EE2-(Functionally Modified Olefins