Asphalt Paving, What does it really mean? - Blog

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Asphalt Paving, What does it really mean?

in asphalt sealcoating asphalt sealcoating asphalt pavement asphalt paving sealer

Several customers of mine have been using the term ”Asphalt Paving” and meaning different type of asphalt maintenance. Sometimes they mean asphalt sealcoating which is completely different from asphalt paving.

Asphalt sealcoating is the application of a liquid sealer on an asphalt pavement.  Typically it’s a refined coal tar sealer that is applied either by spray or brush.  Sometimes polymer additives are mixed in as well as a silica sand to add traction and durability to the sealer.  The thickness on top of the finished asphalt pavement is measured in millimeters and typical life is 2-5 years depending on traffic flow.

Within the asphalt industry, asphalt paving is the installation of a new asphalt surface by a self-propelled machine that lays the asphalt down.  There are different grades of asphalt ranging from a base material, with larger stone and less sand in the mixture to surface asphalt which has smaller stone and more sand in the mix.  Asphalt paving requires that the material be rolled or compacted usually by some type mechanical compactor such as a self-propelled roller.  The thickness of the finished asphalt is measured in inches (typically 1.5-3”) and has a useful life of 15-25 years depending on traffic and general asphalt maintenance. 

Remember, asphalt paving is not a general term used to describe all asphalt maintenance.  Paving means new asphalt pavement.  Sealcoating means maintaining that asphalt pavement.

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