Tresha Overstreet

Title: Innovations in Asphalt Technology by Tresha Overstreet

Introduction

Tresha Overstreet is an accomplished inventor based in Pooler, GA (US). She has made significant contributions to the field of asphalt technology, holding 2 patents that focus on the rejuvenation of reclaimed asphalt. Her work aims to enhance the performance and sustainability of asphalt mixtures used in road construction.

Latest Patents

Tresha's latest patents include innovative asphalt compositions that incorporate reclaimed asphalt and rejuvenating agents. One patent details asphalt compositions comprising reclaimed asphalt and a rejuvenating agent with a cyclic content of at least 5 wt. %. This rejuvenating agent, derived from various acids, revitalizes the aged bitumen binder of reclaimed asphalt, restoring its physical properties to those of original performance-grade bitumen. The improvements achieved include enhanced softening, low-temperature cracking resistance, better fatigue cracking resistance, and improved temperature sensitivity.

Another patent focuses on asphalt compositions that utilize an ester-functional rejuvenating agent derived from tall oil. This innovation restores desirable properties of virgin asphalt to reclaimed asphalt, resulting in reduced glass-transition onset temperatures and improved creep stiffness. The rejuvenating agents not only enhance low-temperature cracking resistance but also reduce the energy needed for mixing asphalt compositions, thereby lowering costs and conserving energy.

Career Highlights

Tresha Overstreet is currently employed at Kraton Chemical, LLC, where she continues to develop innovative solutions for the asphalt industry. Her work is pivotal in helping the road construction sector reduce its reliance on virgin, non-renewable materials, promoting sustainability in infrastructure development.

Collaborations

Throughout her career, Tresha has collaborated with notable colleagues, including William Lewis Grady and David Jan Cornelius Broere. These partnerships have contributed to the advancement of her research and the successful development of her patented technologies.

Conclusion

Tresha Overstreet's contributions to asphalt technology exemplify the importance of innovation in sustainable construction practices. Her patents not only enhance the performance of reclaimed asphalt but also support the industry's shift towards more environmentally friendly materials.