Put
your parking lot to the test.
The following
is a test that you can use to assess the current condition of your
parking lot. It uses 7 common problems which are illustrated and
defined. All you need to do is assign a score for each of the categories.
The results of this test will help you determine what the best course
of action is for you to take.
Select the
number that best describes the condition of your pavement for each
type of problem area (1 = none and 5 = extensive) |
| Raveling -
The on-going separation of aggregate particles from the pavement's
surface. |
 |
Cause |
Water
penetrating unprotected pavement surface. |
| Repair |
Sealcoating
will help prevent further raveling. |
| Prevention |
Application
of sealer after new asphalt has cured. |
| 1
2
3
4
5
|
| Polished
Aggregate - Aggregate in pavement has been smoothed resulting
in a slick unsafe surface. |
 |
Cause |
Repeated
traffic polishes aggregate. |
| Repair |
Use
an asphalt based sealer or a special bonding primer to gain
adhesion, the sealcoat. |
| Prevention |
Use
an asphalt based sealer or a special bonding primer to gain
adhesion, the sealcoat. |
| 1
2
3
4
5
|
| Gas & Oil
Stains - Unsightly stains that soften and breakdown the
surface asphalt. |
 |
Cause |
Oil
dripping from vehicles. |
| Repair |
Depending
on severity patching may be necessary, may be able to use a
bonding agent prior to sealcoating. |
| Prevention |
Sealcoat
over susceptible areas as soon as asphalt has cured. |
| 1
2
3
4
5
|
| Cracks -
Alligator, shrinkage, longitudinal, & reflective. |
 |
Cause |
Various
factors: unstable sub-base, aged asphalt, extreme temperatures,
etc.. |
| Repair |
A
regular schedule of cracksealing is imperative. |
| Prevention |
Some
cracking is normal over time. Sealcoating will help reduce
cracking especially that related to temperature and oxidation. |
| 1
2
3
4
5
|
| Potholes -
Bowl-shaped holes of various sizes. |
 |
Cause |
Poor
drainage, insufficient pavement thickness, negligence of crack
sealing and sealcoating. |
| Repair |
Full-depth
asphalt repair. |
| Prevention |
Proper
construction, timely cracksealing, & sealcoating. |
| 1
2
3
4
5
|
| Grade
Depressions - Localized low areas that are limited in
size, often indicated by standing water. |
 |
Cause |
Pavement
specification not adequate for traffic load, or there may be
a localized subsurface water problem. |
| Repair |
Correct
surface or subsurface drainage problems, or strengthen sub-base
and repair. |
| Prevention |
Proper
pavement design and construction. |
| 1
2
3
4
5
|
| Corrugation
or Rutting - A fairly regular pattern of wave-like bumps. |
 |
Cause |
Lack
of stability in asphalt layer. |
| Repair |
Removal
and replacement of pavement. |
| Prevention |
Proper
pavement design and construction. |
| 1
2
3
4
5
|
Pavement
Condition:
|
TotalPoints:
|
