SoyLei’s Licensed Triglyceride and Asphalt Patent Portfolio

Saturday, 25 July 2026 / Published in Asphalt Research, SIP-1111™, SIP-1111™ Rejuv
Soybeans, asphalt binder, molecular models, and patent documents arranged on a technical workbench.
Explore the eleven Iowa State University Research Foundation technology families licensed for SoyLei's asphalt and plant-oil platform.

What the AASHTO PEAS Evaluation Shows for SIP-1111™

Saturday, 25 July 2026 / Published in Asphalt Research, SIP-1111™, SIP-1111™ Rejuv
Asphalt specimens and laboratory testing equipment arranged around a roadway-materials workbench.
AASHTO PEAS evaluated SIP-1111™ in a 45% RAP laboratory mixture, reporting improved low-temperature binder grade, Delta Tc, Overlay cycles, and IDEAL-CT results with Hamburg rut depth remaining below 4 mm at 20,000 passes.

SIP-1111™ PolyExtend: More Control Over Polymer-Modified Asphalt

Saturday, 25 July 2026 / Published in Asphalt Research, SIP-1111™, SIP-1111™ Rejuv
Asphalt-terminal tanks behind a laboratory bench with binder samples and testing instruments.
Laboratory grading and MSCR results show how SIP-1111™ addition sequence can widen the useful grade range of polymer-modified asphalt while preserving E-class traffic performance.

Janesville, Wisconsin: An Equal-Dose 40% Recycled-Binder Comparison

Saturday, 25 July 2026 / Published in Demo Projects, SIP-1111™, SIP-1111™ Rejuv
Street map of Janesville centered on the SIP-1111 project location on North Claremont Drive.
A North Claremont Drive field trial paired 40% aged-binder replacement with 0.5% SIP-1111™. DCT averaged 358 versus 355 J/m² and IDEAL-CT averaged 193.5 versus 188.2 for the same mixture with 0.5% Anova.

SIP-1111™ in a 45% RAP Balanced Mix Design

Saturday, 25 July 2026 / Published in Asphalt Research, SIP-1111™, SIP-1111™ Rejuv
Asphalt specimens surrounding a laboratory fracture-testing fixture, with a split specimen centered in the apparatus.
A Blankenship Asphalt Tech & Training study compared two bio-oil formulations in an engineered 45% RAP mixture and measured the balance between IDEAL-CT cracking tolerance and Hamburg rutting resistance.

Two SIP-1111™ Treatments Led Hamburg Rutting Resistance in a 35% RAP Study

Saturday, 25 July 2026 / Published in Asphalt Research, SIP-1111™, SIP-1111™ Rejuv
Six unlabeled asphalt specimen sets arranged in a bright laboratory with a cracking-test fixture behind them.
In a blinded ATS comparison, two SIP-1111™ treatments produced the study's two lowest Hamburg deformation values while preserving the full cracking and dosage-efficiency context.

Deerfield, Massachusetts: 30% RAP from 30-Penetration Asphalt with SIP-1111™

Saturday, 25 July 2026 / Published in Demo Projects, SIP-1111™, SIP-1111™ Rejuv
Two crew members rake fresh asphalt on a rural road beside a harvested field.
The Lower Road demonstration used SIP-1111™ to formulate PG 58-28 binder from hard 30-penetration asphalt. The 30% RAP mix raised the reported cracking-test indices and recorded 5.1 mm Hamburg deformation versus 4.5 mm for the 15% RAP control at 45°C.

St. Peters: 35% RAP and a Clear SIP-1111™ Dose Response

Saturday, 25 July 2026 / Published in Demo Projects, SIP-1111™, SIP-1111™ Rejuv
Roller compacting the newly paved asphalt surface beside a commercial building in St. Peters, Missouri.
A full-scale Missouri demonstration compared control, 1.75%, and 3.5% SIP-1111™ sections in a 35% RAP mix, followed by CT Index, DCT, and I-FIT testing at Iowa State University.

NCAT W10: BioMAG™ Carries 20% RAP Through 20 Million ESALs

Saturday, 25 July 2026 / Published in Demo Projects, SIP-1111™, SIP-1111™ Rejuv
Three crew members stand on a paver placing a fresh asphalt mat at the NCAT Test Track.
A BioMAG™ section built with 20% RAP entered accelerated truck traffic at the NCAT Test Track in 2018 and accumulated approximately 20 million ESALs with minimal surface distress.

Altoona, Iowa: BioMAG™ Improves Low-Temperature Grade in a 20% RAP Roadway

Saturday, 25 July 2026 / Published in Demo Projects, SIP-1111™, SIP-1111™ Rejuv
Two views show crews paving the Altoona BioMAG roadway section.
Altoona paired 20% RAP with BioMAG™, a 50% SIP-1111™ rejuvenator and 50% biopolymer formulation, in a full-scale Iowa roadway demonstration.