NEBRASKA ASPHALT CONFERENCE

NEBRASKA ASPHALT CONFERENCE
ALMOST EVERYTHING YOU NEED TO
KNOW ABOUT COLD MIX
Unique Paving Materials Corp.
3993 East 93rd Street
Cleveland, OH 44105
www.uniquepavingmaterials.com
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Ever wondered what a
$3,340,000 pothole looks
like?
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Maintenance and rehabilitation
consume about 80% of the
typical local budget.
Pothole patching is likely the
single most common pavement
maintenance technique in the
U.S. and possibly the most
overlooked opportunity to
improve local maintenance
effectiveness.
Wilson, Thomas; Strategic Highway Research Program; SHRP-H-353
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TYPICAL PAVEMENT DETERIORATION CURVE
Effective
The combined
maintenance
effects of traffic
practices
slow
loading and
the
down
or resetwill
the
environment
deterioration
cause every
process.
pavement, no
matter how wellEffectively
designed orapplied,
maintenance
constructed to
actions
are over
proven
deteriorate
to
extend pavement
time.
life.
As Pavement Condition Index declines repair cost increase
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THERE ARE BASICALLY 2 TYPES OF COLD MIX
Conventional
High Performance
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The differences between high-performance and
conventional cold mix are determined by:
• Components used
• Manufacturing process
• Field performance (most important).
High-performance cold mix is engineered to provide
near zero failure rate using selected components
produced in a controlled process.
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The decision process involved in
purchasing cold mix should be
similar to the process used to
purchasing maintenance equipment.
Define critical features,
then compare market
offerings.
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 Parameters are
interdependent.
Maximum performance
is achieved when all
parameters are
optimized.
 Control as many
parameters as possible.
 Train maintenance
personnel to maximum
survivability.
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CITY OF LEXINGTON, KY POTHOLE COUNT 2003-2012
The collected data from the previous nine years
established a base line for evaluation of
candidate pothole repair materials.
Maintenance labor was redirect to other projects
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POTHOLE REPAIR COST REDUCTION
In 2012, the city repaired 5,972 potholes spending $191,104,
significantly less than the nine-year average of $564,324.
This represents a $373,220 annual savings or a 66% annual
savings for the city.
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INSTALLATION PROCEDURES
• Hole preparation
• Edging
• Crowning
• Layering
• Compaction
Following these procedures will
increase your success rate
regardless of what material you use
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Fake Potholes. They work great for speed control.
Easy to repair
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The Throw And Go method provided the least
performance, contributing to significant road debris
and re-patching. It is reasonable to assume this
method is used occasionally.
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THIS WILL NOT WORK EITHER
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HOLE PREPARATION
• Get rid of loose
chunks of asphalt or
concrete.
• Sweep out hole.
• Make sure the cold
mix has something to
adhere to.
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EDGING
• Definite compacted edges work best
• Keep material over the hole, do not go beyond
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CROWNING
Proper crowning will leave patches at proper level once
finally compacted.
Too high
Snow plows will destroy
patch
Too low
Traffic will destroy edges
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LAYERING
• Patches deeper than 3” should be applied and
compacted in separate lifts
• Proper compaction can not be achieved with lifts deeper
than 2”.
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COMPACTION METHODS
If all you’re able to do is stomp on the patches……..
Please let the biggest guy on the crew take care of
it!!
•Manny Yarbrough
•6’ 8”
•740 lbs.
•World’s Largest
Sumo Wrestler
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COMPACTION METHODS
Truck Rolling
Plate Compactor
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Roller
Hand Tamper
WORDS OF WISDOM
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John Kida
[email protected]
816-868-9438 Cell
877-291-7609 Fax
Providing valuable products, from valuable people, to
valuable customers.
Unique Paving Materials Corp.
3993 East 93rd Street
Cleveland, OH 44105
www.UniquePavingMaterials.com
Customer Service: 800-441-4880
Fax Number: 866-448-8979
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