Averages used: rejuvenator $2.25/SY · micro-surfacing $5/SY · 2" mill
resurface $25/SY. Each strategy is annualized over the years of
pavement service its passes deliver — 20 for rejuvenation (five
four-year passes), 18 for micro-surfacing (three six-year passes), 24
for mill-and-resurface (two twelve-year lifts).
The economics of pavement preservation become even more compelling when
evaluated over the full life of the pavement rather than as a single
construction event. Based on a 24-foot-wide roadway (14,080 square yards)
and a 24-year analysis period, a proactive preservation program
consisting of asphalt rejuvenation at Years 4, 8, 12, 16, and 20 results
in an annualized cost of approximately $7,920 per centerline mile. By
comparison, a micro-surfacing program performed at Years 6, 13, and 19
has an annualized cost of approximately $11,733 per centerline mile,
while a traditional 2-inch mill-and-resurfacing strategy requires an
annualized investment of approximately $29,333 per centerline mile. Over
the 24-year analysis period, the rejuvenation strategy reduces annualized
pavement costs by approximately 73% compared to a conventional
mill-and-resurface program, while micro-surfacing reduces annualized
costs by approximately 60%. In addition to these significant cost
savings, a proactive preservation program minimizes traffic disruptions,
reduces construction impacts, and extends the service life of the
existing pavement by delaying the need for costly rehabilitation.
- Rejuvenation vs. micro-surfacing: savings of $3,813.33 per year — 32.5%.
- Rejuvenation vs. mill & resurface: savings of $21,413.33 per year — 73.0%.
Rather than waiting for pavement to deteriorate to the point where
major rehabilitation is required, a scheduled preservation program
protects the owner's investment, delays expensive capital
expenditures, and provides the lowest long-term cost of ownership.