Sealcoating improves property appearance and value.
A clean jet black surface is
attractive.
Sealcoating can protect the pavement from gas, oil and other drippings.
Sealcoating can be used to smooth rough & raveled areas.
Sealcoating makes the pavement easier to maintain.
Snow melts quicker, sealed pavement dries quickly.
Sealcoating can make a smooth pavement slip and skid resistant.
It reduces liabilities.
Sealcoating saves pavement maintenance costs in the long run.
Sealcoating helps to avoid frequent hot mix overlays.
|
The "IN's" and the "OUT's" as
well as the "WHY's, WHEN's,
HOW's, WITH WHAT's"
& the "SHOULD I's"
Cracks in asphalt pavements are primarily caused by shrinkage. Asphalt
pavements are made for approximately 94% sand and rock and 6% asphalt.
Standard asphalt is very susceptible to the elements. Sun, wind, rain, and
heat act to oxidize asphalt causing it to harden and shrink. When this
happens the pavement breaks at its weakest point first. Joints along curb
lines and cold paving joints are usually the first to go. Block cracking is
also common. The pavement cracks at regular intervals, usually traversely every 30 to 90 feet across the roadway. Other
causes of asphalt cracks include a weak sub-base and vehicle traffic too
heavy for the design of the pavement.
Is sealing cracks cost effective?
Proper crack repair procedures can double the life of most asphalt pavements.
A surface which is five to ten years old will usually need 1 ton of sealant
per lane mile and will last up to ten years.
When should I seal cracks?
The sooner, the better. Any crack in the pavement will allow moisture to
penetrate to the subsurface. The goal of a good pavement maintenance program
should be to keep the moisture from entering the asphalt pavement.
|
