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Benefits:
• Economic
Applications:
•
Conventional
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Ultra-Thin Whitetopping Durable, Fast, Competitive
Ultra-thin whitetopping for streets and parking lots is a no-compromise material that delivers the long life and superior performance characteristics of concrete at a price competitive with asphalt overlays.
The process and technology of ultra-thin whitetopping evolved from conventional whitetopping methods. Over the past 30 years, whitetopping overlays of 4-20 inches have yielded exceptional results in the rehabilitation of asphalt parking areas, streets, highways, and airport runways. In the late 1980s, researchers developed ultra-thin whitetopping by reducing the thickness, reinforcing the material, and redefining the joint spacings of standard whitetopping.
In 1991, this new technology was put to the test in a Louisville, KY parking area. Since then, more than 250,000 square yards of ultra-thin whitetopping have been placed throughout North America. Offering the best solution for today's overlay projects, only ultra-thin concrete whitetopping delivers a combination of benefits that include:
® Durability Research indicates that ultra-thin concrete whitetopping lasts 2 to 3 times longer than asphalt overlays.
® Strength Reinforced with synthetic fibers, the concrete develops strengths upwards of 3,000 psi
® Appearance Provides the superior appearance and cool light reflectance unique to concrete surfaces, and resists the rutting and "washboarding" that often appear within a year on asphalt surfaces.
® Price Ultra-thin whitetopping is an affordable way to reap the many advantages of concrete pavement, and it is competitively priced with asphalt overlays.
® Ease of placement Surface preparation is minimal, and paving can be accomplished with the same equipment used in conventional concrete installation.
® Speed of placement With a curing time of less than 24 hours, most ultra- thin whitetopping projects can handle traffic within 1-2 days after construction.
® Broad applicability Ultra-thin whitetopping is the ideal solution not only
for parking areas, but also for city
streets and intersections, local or low
®
Life cycle
A properly-designed concrete
overlay can be expected to
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ConcreteAnswers for Architects, Engineers and Developers:
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About NRMCA | Privacy Statement © National Ready Mixed Concrete Association, 2010
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Although concrete is widely
acknowledged as the strongest and most durable paving material, budget
constraints often prevent it from being chosen for pavement maintenance and repair
projects. Now,
with the development of ultra-thin whitetopping, the superior performance of
concrete can be achieved with fewer tax
dollars. Overlays made
with this high-strength, fiber-reinforced concrete product require a
thickness of only 2-4 inches, resulting in low cost and simple, fast
installation.
