Color of Blacktop Driveways

The color of blacktop driveways will vary over time. The guide below is one factor in determine the condition of your blacktop driveway.


 


1. Black

New surface is smooth and crack free.

After curing, deterioration starts. Much like a finish on a new
car, sealcoating provides a wearing surface that preserves the
original surface.

2. Dark Grey

Oxidation is starting. Small shrinkage cracks appear and allow
surface water to penetrate below the surface.

Sealcoating will fill small cracks and will halt oxidation.
Sealcoating provides a complete surface seal.

3. Grey

Shrinkage cracks are getting longer and wider. Surface oxidation
pronounced. More surface water is penetrating to the base.

Sealcoating, along with crack repair, stops surface damage. The
surface will be sealed and original appearance is restored.
4. Light Grey Reaching
critical point where increasing moisture penetration is damaging
base. Surface lines are being abraded and surface is getting
rough.
Adequate
repair and sealcoating will stop surface deterioration. Some
larger cracks, though sealcoated and reduced, might remain
visible. Asphalt is sealed to prevent further weather and
oxidation damage.
5. Light Grey
to White
Oxidation,
cracking, abrading, and base damage occurring at increasing
rate. Surface stones are being dislodged by traffic. Surface
texture is open and rough.
This is your
last chance for proper sealcoating! Further deterioration will
inevitably lead to an expensive overlay or complete replacement
of asphalt.
6. Light Grey
to White
General
disintegration rate accelerated due to previous base and surface
damage. Shrinkage at curb lines creating large gaps.
If moisture
damage to base is not too great, sealcoating or an overlay may
extend surface life. It is no longer practical to sealcoat until
after extensive repairs are completed.
7. Bone White Base failure
has allowed affected area to settle and crack in gator pattern.
Base failure hastened by previous water penetration. Base and
surface failure spreads from this point. Surface is
disintegrating rapidly.
Extensive
infrared repairs or an overlay is a must!  Sealcoating will not
stop base collapse.
8. White Areas are
breaking up. Loose blocks are rocking and can be dislodged.
General surface is very poor.
An overlay or
complete replacement of asphalt is required.
9. White Large pieces
of pavement are breaking off edges. Traffic is forced to slow
down to avoid large holes.
An overlay or
complete replacement of asphalt is required.
10. White
Base materials
are splashed out. Surface is heaved and generally broken.
Replacement of
asphalt is required.

 

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