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414 Commercial St.
Albert Lea, MN 56007
507-377-4377

Crack Sealing

Bituminous or blacktop pavement by design is flexible to accommodate the freeze/thaw cycle of our climate. Subsequently, cracking will occur in relatively new pavement and continue throughout its life due to age, traffic, weather, etc.

Sealing cracks helps prevent moisture from infiltrating the pavement structure. This moisture weakens the structural subsurface layers and is the primary cause of pavement deterioration. It should be applied when temperatures are moderately cool, such as in the spring and fall.

Crack sealing is typically performed to streets:

  • Selected for seal coating
  • Follow-up maintenance to overlays typically two years of age
  • First maintenance applied to new construction

Crack sealing is a three step process

Step One0919080805a5

The first step involves using a walk behind machine that routs or grinds the crack wider a the surface of the asphalt. This makes room for the asphalt polymer used in step three.

 

 

Step Two09230813583

Cleaning a crack using a high pressure torch and drying any moisture in it. The crack must be clean and dry for the asphalt polymer to adhere to the crack.

 

 

 

Step Three09220813361

The final step is filling the crack with a polymer asphalt filler that is heated to 350 degrees. Workers spread the filler over the crack and then spray it with a soap based sealer so that traffic can drive over the crack almost immediately.

Minnesota state law (Chapter 156 of the Session Laws of 2005) requires that "a city or county with a population of more than 15,000 must annually notify its residents of the positions and base salaries of its three highest-paid employees." For the City of Albert Lea, titles and salaries as of Jan. 1, 2019, are: City Manager, $138,375.12; Director of Public Works/City Engineer $110,780.80; and Director of Public Safety $103,646.40. Date of publication: January 23, 2019.