INDUSTRIAL
Beaumont, Texas, Pave
Asphalt modified with Honeywell Titan™ achieved lower mixing and paving temperatures, a lower viscosity, and enabled paving crews to use fewer roller passes.
CASE STUDY
Honeywell Titan Used in Texas
In a highway paving trial performed in collaboration with the Texas Department of Transportation, Honeywell Titan additives were used in a PG 76-22 SMA-D mix to pave 1.2 lane-miles of State Highway 347 in Beaumont, Texas.
Mix Properties
- Asphalt modified with 50% Honeywell Titan and 50% SBS
- Modifier mix represented ~6% of the overall asphalt formulation
Trial Results vs. Typical SBS-Only Mix
Asphalt modified with Honeywell Titan achieved lower mixing and paving temperatures, a lower viscosity, met densities and ultimately enabled paving crews to use fewer roller passes, when compared with the mix using SBS alone.
| Typical SBS Results | Trial Results | |
| Mix Temperature | 335°F | 280°F |
| Paving Temperature | 300-335°F | 245 - 260°F |
| Roller Passes | 3 | 2 |
| Binder Viscosity (136°F) | 1100 cps | 750 cps |
Cost Savings
Fewer roller passes and a lower mix temperature helped save on equipment and labor costs:
- Roller passes decreased by 33%
- Mix temperature decreased by 55°F
- Fuel usage decreased by 13%*
*Calculated using National Asphalt Pavement Association’s greenhouse gas calculator
Environmental Benefits
Helped reduce harmful emissions (when applied to industry model**):
- SO2 emissions by 82%
- NOx emissions by 43%
- VOCs by 19%
- CO2 by 18%
**Extrapolated from ISAP 2008, Julien et al: Environmental Assessment of HMA
