Advanced Cold Asphalts HIGH PERFORMANCE ASPHALT COLD MIX FOR POT - - PowerPoint PPT Presentation

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Advanced Cold Asphalts HIGH PERFORMANCE ASPHALT COLD MIX FOR POT - - PowerPoint PPT Presentation

Jan 10, 2024 213 likes •669 views

Advanced Cold Asphalts HIGH PERFORMANCE ASPHALT COLD MIX FOR POT HOLE AND UTILITY CUT REPAIRS By TODD MELLEMA What is Advanced Cold Asphalt? Advanced Cold Asphalt (ACA) are High Performance Asphalt Cold Mixes engineered to provide

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Advanced Cold Asphalts

HIGH PERFORMANCE ASPHALT COLD MIX

FOR

POT HOLE AND UTILITY CUT REPAIRS

By

TODD MELLEMA

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What is Advanced Cold Asphalt?

  • Advanced Cold Asphalt (ACA) are High Performance Asphalt

Cold Mixes engineered to provide permanent to near permanent repairs to asphalt pavements.

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What Makes Advanced Cold Asphalts Different?

By controlling the process from start to finish.

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Using select specification binders.

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Utilizing modifiers to improve performance.

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Selecting and testing aggregates to meet strict specification criteria.

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Ensure the manufacturing process is followed as specified.

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Make installation recommendations to ensure desired results.

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Perform finished product analysis and follow up with recommendations to the improve mix.

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How do you know if you have an ACA?

Do a Strip Test.

  • 1. Add cold mix to jar
  • 2. Add water
  • 3. Shake vigorously

If it’s an ACA there should be virtually no striping of the oil off the rock. The oil should stick to everything including the inside of the jar.

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Simple Stripping Test – Conventional Cold Mix

Stripping-fine aggregate suspended in water settling on cold mix resulting in cloudy water. Cold mix stripping in a simple jar test demonstrates performance in the rain. Self tacking No Self tacking

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Which mix is the Advanced Cold Asphalt?

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Why is all this all this important?

  • Equipment
  • Labor
  • Overhead

Represent 60-80%

Material, 20-40%

Material cost is not the controlling component when using cold mix.

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Cost Modeling ACA vs MC Mix

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Cost Modeling ACA Brand A vs ACA Brand B

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Advanced Cold Asphalt Producers

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Advanced Cold Asphalt Applications

Advanced Cold Asphalt can be used in almost any asphalt pavement repair where the sides and bottom of the hole is sound.

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Utility Cuts

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Skin Patch Repairs

17 Months Old

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Pot Holes

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More Pot Holes

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When should one use ACA’s

  • High Performance Cold

Mixes or ACA’s were

  • riginally developed to

be utilized in the winter months when Hot Mix was not available.

  • However today they used

year round for a variety

  • f uses.
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Patching is like Painting

The end result is only as good as your prep work.

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Installation Best Practices

Hole Preparation

  • Clean the Hole
  • Get rid of any loose chucks of

asphalt or concrete.

  • Sweep out hole.
  • Ensure the mix has

something to adhere to.

  • Water does not need to be

removed.

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Hole Preparation

  • Make sure there is

no ice, snow or loose debris in the repair site

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Concrete Joints and feather patches

  • Imperative that the hole is

dust free.

  • Sweep or blow out!
  • ACA’s will stick to whatever it

contacts.

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Crowning

  • Proper crowning will leave patches at the proper level once fully

compacted

Too High Too Low

Traffic will destroy edges

Snow plows will destroy patch

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Edging

  • Definite compacted edges work best.
  • Keep material over the hole, do not go beyond.
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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”.
  • Pushing and rutting can occur.
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Priming

  • Most primers or tack-coats are emulsions and needs to “break” to be

effective.

  • Emulsions are not effective in cold weather, the tack will freeze before

it “breaks”.

  • Most ACA’s are self priming. No primer is necessary.
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Compaction Methods

Truck Rolling Roller Plate Compactor Hand Tamper

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Simply Drive Over It

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Throw & Go is NOT effective

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Neglected Repairs Can Grow

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Application Steps

  • Use common sense
  • Follow simple procedures
  • Attitude!!
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Clean the Hole

  • Use a broom, blower or air compressor but clean the hole.
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Remove Large Chunks & Remove Crack Filler

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Remove Paving Fabric

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Compact the Base

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Install The First Lift

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Compact

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Place Final Lift & Compact

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Dust Coat With Portland & Open To Traffic

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Anyone Notice?

  • Occasionally it’s obvious

the reason quality varies.

  • To consistently reproduce

premium results requires the control of critical parameters every time.

  • That is what Advanced

Cold Asphalts are all about.

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Thank you

Questions?

Presented By

Todd Mellema

DISSCO 303-935-2485