An ultra thin lift HMA is a hot mix asphalt treatment consisting of paving grade asphalt and aggregate. Ultra thin lift asphalt treatments are generally applied at a compacted depth of .75” to 1” on roads in good condition. This pavement preservation application provides a smooth surface, while addressing raveling, low-severity top-down cracking and oxidation.
Higher initial cost compared to other preservation treatments especially if milling is required; however, ultra thin lift asphalt will help reduce life cycle cost and extend agencies limited budgets.
While not as environmentally friendly as other pavement preservation processes, ultra thin lift HMA's reduce GHG Emissions by up to 25% per year compared to a 2" Mill and Fill depending on specific thin lift treatment. (1)
Material is 100% recyclable
Quick return to traffic
Adds 8-10 years (when applied for optimum preservation performance) depending on specific ultra thin-lift treatment
Retards further deterioration of pavement
Protects the surface from oxidation.
Restores road profile (within limitations)
Maintains grade and slope
Overlay for existing concrete pavement (spray paver recommended).
Addresses minor distresses such as low-severity cracking (<1/4")