INFORMATION & IDEAS
Bending beam tests demonstrate cold-temperature performance.
The asphalt modifier, DuPont™ Elvaloy® RET, creates a permanently improved bitumen-based binder that delivers long-lasting performance in well-engineered pavements.
Tests show that polymer modified asphalt made with Elvaloy® RET can help fight the four main ways pavement often fails: rutting, stripping, cold cracking and fatigue cracking.
Asphalt can be made more resistant to thermal and fatigue cracking by increasing binder flexibility and internal resilience at a molecular level. Elvaloy® RET is a reactive terpolymer that "locks in" the extra performance needed for longer wear and wider temperature tolerance.
In lab settings and on real projects, paving experts are observing reduced moisture susceptibility and resistance to stripping for binders modified with Elvaloy®.
By creating a more resilient binder at a molecular level, DuPont™ Elvaloy® RET asphalt modifier can help prevent thermal cracks.
Extensive test data is available from government agencies, asphalt materials experts and universities, showing Elvaloy® RET to be at least equal, but in most cases superior in performance to SBS-modified asphalt meeting a similar specification grade.
As a reactive polymer, Elvaloy® RET asphalt modifier "locks in" improved binder performance.
Tests confirm less pavement rutting with RET-modified binder with DuPont™ Elvaloy® RET asphalt modifier.
By creating a more resilient binder at a molecular level, DuPont™ Elvaloy® RET asphalt modifier can help prevent cold and thermal cracks.
Multiple stress creep recovery (MSCR) testing helps predict rutting.
For asphalt terminals wanting a fast, easy way to supply modified binder, DuPont™ Elvaloy® RET reactive elastomeric terpolymer can be a smart, profitable choice.
In hot mix asphalt (HMA), using Elvaloy® RET can save time and money.
Producing a higher-performing asphalt binder delivers value to contractors and project owners and is often a key requirement for today's more highly engineered paving projects.
With DuPont™ Elvaloy® RET 5160 and 5170 asphalt modifiers, DuPont answers industry demands for more robust modifiers that provide long-lasting performance to asphalt roads.
Polymer-modified asphalt made with DuPont™ Elvaloy® RET reduces rutting and fatigue cracking, fights cold cracking, resists stripping and offers "locked-in" enhancements.
DuPont™ Elvaloy® RET is supplied as free-flowing pellets that melt into hot asphalt to create a permanently modified asphaltic (bitumen) binder. An RET-modified asphalt remains easy-to-use, but delivers improved long-term resilience and climate resistance.
New technologies and materials aim to make potholes and pockmarked roads a thing of the past.