Pavement Preservation Overband Crack Seal ODOT Spec #423 Fog Seal - - PowerPoint PPT Presentation

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Pavement Preservation Overband Crack Seal ODOT Spec #423 Fog Seal - - PowerPoint PPT Presentation

Nov 30, 2023 182 likes •890 views

Pavement Preservation Overband Crack Seal ODOT Spec #423 Fog Seal ODOT Special Provision Onyx ODOT Special Provision Chip Seal ODOT Spec #422 Micro Surfacing ODOT Spec #421 Overband Crack Seal ODOT Spec #423

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Pavement Preservation

Overband Crack Seal – ODOT Spec #423 Fog Seal – ODOT “Special Provision” Onyx – ODOT “Special Provision” Chip Seal – ODOT Spec #422 Micro Surfacing – ODOT Spec #421

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Overband Crack Seal – ODOT Spec #423

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Overband Crack Seal

Type 1 – “BLOCKED” with 18% Rubber

  • Routing and “Filling”

Type 2 – “LIQUID” with 5% Polyester Type 3 – “LIQUID” with 7% Polypropylene Type 4 – “BLOCKED” with 2% Polyester

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Overband Crack Seal

Temperature - 45 degrees and rising Width of Crack – 1/4” – 1” Product Thickness – 1/16” – 1/8” Bandwidth - 5” disc installs 4” wide product Pay Item – Pound or Square Yard

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Overband Crack Seal - Blocked

5,000 lbs. / day @ 7 ft. / lb..

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Overband Crack Seal - Liquid

7,000 lbs. / day @ 5 ft. / lb..

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Overband Crack Seal - Bad

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Overband Crack Seal - Optimum

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Overband Crack Seal

City of Columbus, OH

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Overband Crack Seal

When: 2-4 years after new pavement is installed Result: Additional 5 years Pavement Service Life

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Fog Seal – ODOT “Special Provision” “Green Grass and Black Roads”

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Fog Seal

Inexpensive Asphalt Emulsion

  • Diluted 50% with Water

Shot at .1 to .12 gallons / sy “Locks Down” Chip Seals Not Intended for Asphalt Surfaces Pay Item - Square Yard

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Fog Seal

3 Main Concerns Dry Time – Multiple Hours Loss of Friction - Slick Service Life – +/- 1 year

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Fog Seal

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Fog Seal

Caesar Creek State Park, OH

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Onyx – Frictional Mastic Surface Treatment

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Onyx Components

  • Cationic Polymer Modified Asphalt Emulsion

– .25 gallons / sy – Double Application – Both Directions in Each Lane

  • Quality “Fine” Aggregate – Silica
  • Dark Color Enhancers
  • Breaking and Setting Additives - Catalysts
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Onyx

Addressing 3 Main Concerns

Dry Time – 30 to 60 Minutes Loss of Friction – Aggregate Inclusion Service Life – 3 to 4 Years

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Excellent Price Point Fills Pavement Cycle Need

Chip Seal $1.50-$2.25 Fog Seal $0.40-$0.75 Onyx $1.00-1.25 Micro $2.50-$3.25 Ultra Thin $4.00-$4.75 Stand: HMA $5.25-$7.00

*Prices based on Square Yard

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Onyx - Equipment

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Onyx – Side Panel Protection

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Onyx - Handwork

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Onyx - Applications

State, County and Townships

  • High-Volume Priority Shoulders
  • Low-Volume General Mainline
  • Chip Seal “Seal”

Local

  • Low to Medium Volume Residential Streets
  • Parks and Cemeteries
  • Large Commercial Parking Lots
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State, County and Township Roads – “Before”

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State, County and Township Roads – “After”

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Local Residential – “Before”

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Local Residential – “During”

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Local Residential – “After”

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National, State and Local Parks – “Before”

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National, State and Local Parks – “After”

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Chip Seal – ODOT Spec #422

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Chip Seal

Polymerized Asphalt Emulsion .37 - .42 gallons/sy

Anionic – Neg. (-)Charge RS-2 RS-2P HFRS-2P Cationic – Pos. (+) Charge CRS-2 CRS-2P SAM-C

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Chip Seal

Limestone - Porous Slag - Durable Natural Gravel – Economical

Cover Aggregate #9 or ¼” #8 or ½”

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Chip Seal

Two 9-Wheel Rubber Tire Rollers

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Chip Seal – “Little Known Spec Facts”

  • May 1st to September 1st

– 1 month to cure emulsion

  • 50% stone embedment
  • 150 ft. – distributor to chipper
  • 2 roller passes - 3 is ideal
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Chip Seal

Historical Issues

  • Dust
  • Loose Stone
  • Delamination
  • Short Life Expectancy
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Chip Seal

Present Solutions

  • Fog Seal / “Onyx”
  • Line Striping Removal
  • Material Compatibility
  • Polymerization
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Micro Surfacing – ODOT Spec #421

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Micro Surfacing

  • Polymerized Asphalt Emulsion
  • Natural Latex
  • Limestone Aggregate
  • 3/8” to P200’s
  • Breaking and Setting Additives
  • Chemical Break and Cure
  • Portland Cement
  • Cohesiveness
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Micro Surfacing

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Micro Surfacing

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Micro Surfacing

Truck Mount Unit

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Micro Surfacing

Continuous Unit

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Micro Surfacing – Features and Benefits

  • Surface Friction Correction
  • Rut Fill – Cross Slope Correction
  • Arrest Oxidation / Minor Raveling
  • Fast Installation and Cure Time
  • No Berm Material Required
  • ½ the cost of 1 ½” of asphalt
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Micro Surfacing – Surface Prep

  • Quality Patching and Crack Sealing
  • Remove Plastic Markings
  • Remove Grass and Vegetation
  • Cover All Structures
  • Tack Coat - Option
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Micro Surfacing – Protecting Structures

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Micro Surfacing – Surface Course

  • Single Course – 18 lbs. /sy
  • Heavy Single Course – 20 to 24 lbs. / sy
  • Pay Item – Square Yard
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Micro Surfacing – Double Course

  • Level – 14 lbs. / sy
  • Surface - 16 lbs. / sy
  • Pay Item – Square Yard
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Micro Surfacing

Good Candidates:

  • 5-8 Years Old
  • Oxidized
  • Minor Raveling
  • Minor Rutting
  • Good Sub Base
  • Cracks Treated
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Good Micro Surfacing Candidate

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Overband Crack Seal Micro Surfacing – Surface Course

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Polymerized Chip Seal Micro Surfacing – Surface Course

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Base Course Asphalt Micro Surfacing – Surface Course (Tack Coat)

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Micro Surfacing – Quality Control

  • Alignment of each paving pass
  • Surface Texture
  • Properly constructed paving joints
  • Uniform finish of hand work
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Micro Surfacing – Quality Control

  • Alignment of each paving pass
  • Surface Texture
  • Properly constructed joints
  • Uniform finish of hand work
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Micro Surfacing – Quality Control

  • Alignment of each Paving Pass
  • Surface Texture
  • Properly Constructed Joints
  • Transversely
  • Good Quality Hand Work
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Micro Surfacing – Quality Control

  • Alignment of each paving pass
  • Surface Texture
  • Properly constructed joints
  • Longitudinally
  • Uniform finish of hand work
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Micro Surfacing – Quality Control

  • Alignment of each paving pass
  • Surface Texture
  • Properly constructed joints
  • Uniform finish of hand work
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Micro Surfacing – Quality Control

  • Alignment of each paving pass
  • Surface Texture
  • Properly constructed joints
  • Uniform finish of hand work
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Micro Surfacing

ODOT – District 3 I-71

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Micro Surfacing

ODOT – District 6 SR 35

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Micro Surfacing

Delaware County Engineer, OH

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Micro Surfacing

Erie County Engineer, OH

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Micro Surfacing

City of Loveland, OH

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Micro Surfacing

City of Wooster, OH

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Micro Surfacing – Black Aggregate

  • Ontario Trap Rock - 50% of mix
  • Improves Surface Friction
  • Keeps Pavement Darker Longer
  • Better Line Delineation - Safety
  • Helps Melting of Snow (Less Salt)
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Micro Surfacing – Ontario Traprock

Anderson Township, Hamilton County, OH

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Micro Surfacing – Ontario Traprock

Cowan Lake State Park, OH

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ODOT Pavement Preservation Study

2010 Chip Seal and Micro Surfacing Study Thin HMA (< 1 ½”) $66,358/lm 9 Years Micro (4 Lane) $26,350/lm 8 Years Micro (2 Lane) $17,450/lm 9 Years Chip Seal $11,500/lm 3-5 Years