For Engineers and Specifiers: Polymer Modified Asphalt That Delivers Maximum Service Life
Tests show that polymer modified asphalt made with DuPont™ Elvaloy® RET can help fight the four main ways pavement often fails: rutting, stripping, cold cracking and fatigue cracking.
Repeated heavy loads can cause asphalt pavements to permanently deform over time, most noticeably forming unsafe ruts in a travel lane or intersection.
Fights Temperature Cracking
One of the principal reasons for considering a polymer-modified asphalt (PMA) is to enable the use of paving material that can resist cold cracking and yet still remain resistant to rutting.
Fights Fatigue Cracking
Because Elvaloy® RET adds to pavement resilience, modified asphalt can prolong the life of the road by resisting cracking under fatigue.
Reduces Binder Stripping
Aggregates are easy to coat using binder made with Elvaloy® RET and remain strongly bonded after moisture and freeze-thaw exposure.
Storage Stable, Shippable
The locked-in performance properties of binders made Elvaloy® RET result from the polymer's fluid-state reaction with asphalt. Source, store and ship polymer-modified asphalt strategically to meet local project requirements.
Contractors report smooth spreading, easy hand-working and faster, problem-free compaction of asphalt mixes made with RET-modified binder.