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A worn or deteriorated surface that is still structurally
sound may desire a slurry seal. This is ¾" of cold
mixed asphalt overlay placed on the existing surface. Slurry
sealing provides a brand new surface that extends the life
of your asphalt and is aesthetically pleasing. It is recommended
that severely cracked or failed areas be replaced and or
crackfilled before applying the slurry seal. If these areas
and cracks are not corrected, the cracking may become visible
through the slurried surface. The large benefit of a slurry
seal is that it fills minor voids and unevenness in the
existing pavement while providing a new smooth surface. |
| The slurry truck mixes aggregate, binder, and water
on site; the exact proportions are specified for each
project. The mixed slurry is applied to the pavement
through a spreader at the back of the truck. American
Asphalt uses squeeges to apply the slurry seal in areas
in which the truck cannot fit. The new overlay is finally
compacted with a steel wheel roller to achieve designed
strength and smoothness. |
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Fresh slurry seal loses surface aggregate in a process
called “raveling”. Even though new traffic
may cause slight deformations on the slurry surface,
it will compact back down during its two month curing
phase. Slurry sealing is becoming a very popular cost-efficient
technique in restoring old pavements. One day after the
slurry seal is applied, American Asphalt returns and
re-stripes the regions exactly the way they existed.
Directional arrows, no parking or fire zones, and crosswalks
can be added to improve traffic flow and pedestrian safety. |
