CONCRETE FACTS
- Concrete is the better long-term value because a concrete road performs well for 20 to 30 years — about three times longer than an asphalt one.
- Because it is produced locally, concrete decreases transportation costs and pollution. Most of the liquid asphalt used in Maryland is trucked in from other states.
- Concrete is more rigid than asphalt, making concrete roads up to 4 percent more fuel efficient for cars and up to 7 percent for large trucks.
- Concrete reflects light, making the pavement brighter while reducing the energy needed to light it by up to 30 percent. Likewise, concrete reflects heat, reducing the “heat island” effect and ambient temperatures by up to 7 to 10 degrees.
CONCRETE MYTHS
Myth: Asphalt is cheaper than concrete.
Fact: Concrete installation costs are equal to asphalt and concrete reduces the maintenance costs associated with asphalt repair.
Myth: Concrete always requires an aggregate base.
Fact: Concrete often does not need an aggregate base, depending on subgrade conditions.
Myth: Asphalt installation takes hours, while concrete installation takes days.
Fact: Concrete pavements can open the same day they are installed.
Myth: Concrete is not an environmentally friendly construction material.
Fact: Concrete is the only material that can potentially contribute to all five LEED categories.
Myth: Concrete pavement is more susceptible to cracking than asphalt.
Fact: When installed properly, concrete will have fewer cracks while eliminating ruts and potholes.
Myth: A concrete overlay cannot withstand the stress of heavy traffic.
Fact: Not only can a concrete overlay withstand traffic in a matter of hours, but it will also gain strength over time.
Myth: Concrete’s light color allows oil stands that blend in with asphalt to be easily seen.
Fact: Oil stains on concrete can be cleaned, but oil stains eat away asphalt, and concrete’s light color and reflectivity reduce ambient temperatures and lighting costs.
