ASPHALT MAINTENANCE PROGRAM
THIS IS A MUST IN MINNESOTA.
Maintaining your asphalt will lengthen the life of your parking lot or other paved surface. Commercial asphalt that is well maintained also provides the necessary curb appeal that is oh so important.
Let Metro Paving Inc. help you maintain your pavement investment!
Join our FREE Maintenance Evaluation Program. By joining our Maintenance Program, you can rest assured you are taking the steps to keep you asphalt in great shape. With our program a pavement expert will return in the spring to evaluate the necessary steps to ensure proper maintenance of your parking lot. If nothing is required we will let you know and plan a visit for the following year. We pride ourselves in keeping a long term relationship with our customers through professionalism and honesty.
Typical Maintenance Issues:
1 to 3 year lots: Crackseal and maybe sealcoat. Note if sealcoat is done a restripe will be required.
3 to 8 year lots: Continue crackseal as needed, repair potholes or break up areas. A sealcoat is many times required during this period to help maintain the integrity of the asphalt.
8 to 12 year lots: Based on the condition of the asphalt, you may be able to continue repairing the break up areas and doing cracksealing. With a parking lot of this age, you should start budgeting for a more extensive and long term repairs and replacement.
12 to 15 year lot: In most cases this is the life expectancy of asphalt in Minnesota. Options you may want to consider include: asphalt overlay, or asphalt reclaim and replacement.
Terminology:
Crackseal – Method in which the asphalt has cracked or expanded more than one inch in width. The repair process includes routing out of existing pavement to create an even bond. The spot is then filled with a MN DOT specified hot crack fill material.
Sealcoat – Method in which the parking lot is blown clean and free of all debris and a MN DOT liquid material is applied.
Pot hole repair – Method in which the broken or deteriorated area of asphalt is removed and the unstable base is replaced with a minimum of 6 inches of new base material and a minimum of 3 inches of new bituminous.
Asphalt overlay – Method in which all areas with concrete or tie-in areas to adjacent asphalt will be milled down to accommodate the new asphalt. This is also the period in which the milling machine will create proper water drainage for new asphalt.
Next the entire lot is power swept and a bonding agent called tack is applied.
After the tack is applied the new asphalt will be installed. The depth of the asphalt is determined by the amount of traffic or type of traffic most common to the area.
Reclaim – Method in which all of the existing asphalt is reclaimed or ground up with as much as 8 inches of the existing base material to make a new base. This method is used if the asphalt is not capable of being overlayed or there is no room to install an additional amount of asphalt on top of what is there because of drainage or height issues. After the lot is reclaimed it is regraded to create proper drainage and new asphalt is installed. Once again the depth is determined based on the traffic and type.
