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.

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™ 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.