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Asphalt Pavement Life Cycle
Costs

Benefits
of Asphalt | The
Engineers Choice | Perpetual
Pavement | Life-Cycle
Costs | Speed | Environmental
Issues and Recyclable Asphalt | Fact
Sheets and Q&As | Glossary
Smooth, flexible pavements constructed from Hot Mix Asphalt
(HMA) stand up to the punishment of heavy trucks and other
vehicles, significantly reducing initial and total costs
over the entire life cycle of a road.
The cost of keeping motorists stuck in
traffic during construction—known
in the industry as user delay cost—should be considered
in any analysis of life-cycle cost. On a busy interstate
highway, traffic delays from a single construction project
can easily cost a local economy more than two million dollars
per day. With asphalt pavements, initial construction, maintenance,
and rehabilitation all cost less. And, user delay costs are
far less with HMA because construction, maintenance, and
rehabilitation with Portland Cement Concrete (PCC) takes
much longer.
How it works
HMA pavement design begins with a strong base layer that
absorbs and diffuses the stress of heavy traffic, preventing
the initiation of cracks. A strong, load-bearing intermediate
layer is topped by a smooth, rut-resistant surface layer
that seals out moisture and deicing materials.
Altogether, HMA pavements can handle the toughest traffic
punishment.
Major advantages
Because construction cost less initially, and proper maintenance
extends the life for decades, HMA pavements last longer and
cost less than concrete.
HMA pavements require only periodic surface restoration,
providing a smooth, durable pavement for decades. Maintenance
is quick, cost-effective and less disruptive than with PCC
pavements.
more facts
Source: Asphalt Pavement Alliance
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