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DuPont(tm) Elvaloy(r) RET

Fatigue cracking can be reduced or eliminated using a more resilient RET-modified asphalt binder

Fighting Pavement Failure 
Review technical references showing reduced fatigue cracking with RET.
By changing asphalt binder resilience at a molecular level, DuPont™ Elvaloy® RET "locks in" stronger performance throughout the binder. Unlike a "mixed-in" modifier, the RET reactive terpolymer creates a more intrinsic, non-separating change in binder properties.

The improved properties are uniformly dispersed, because of RET's deeper, fluid-fluid contact and chemical bonding. Resulting binders offer more resilience to internal stresses, and are less susceptible to fatigue cracking.
research papers

Technical Research Papers Available

Learn more about fatigue tests that have been performed on various asphalt paving mixes (including mixes made with RET-modified binders) using bending beam equipment and other lab methods. » Designing for long life