Colorbiotics Invigorate Rejuvenator Asphalt Additive

Invigorate rejuvenator is designed to increase the use of recycled asphalt and extend asphalt service life.

It is a new soybean oil-derived additive that triggers chemical reactions inside recycled asphalt pavement (RAP) and stiff binders to break down asphaltene aggregation and reverse the effects of oxidation in the final mix. While other rejuvenators offer a superficial change to the viscosity of the binder, the company says its additive improves the chemical properties of lower-quality binders, addressing aged elements within RAP. This new technology, developed at Iowa State University, is meant to improve the recyclability of asphalt while still meeting PG and performance-testing specifications.