2/8/2019 Cold In-Place and Full Depth Reclamation Best Practices - - PDF document

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2/8/2019 Cold In-Place and Full Depth Reclamation Best Practices - - PDF document

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2/8/2019 Cold In-Place and Full Depth Reclamation Best Practices Jason Wielinski, P.E. Heritage Research Group How might we fix these roads? How might we fix these roads? 1 2/8/2019 How might we fix these roads? Why Pavement Recycling?

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Cold In-Place and Full Depth Reclamation Best Practices Jason Wielinski, P.E. Heritage Research Group How might we fix these roads? How might we fix these roads?

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How might we fix these roads?

Why Pavement Recycling?

  • Additional tools in the road construction toolbox
  • FDR: Full Depth Reclamation
  • CIR: Cold In-Place Recycling
  • CCPR: Cold Central Plant Recycling
  • Using less resources, proven construction methods
  • Engineered process, engineered technology

Learning Objectives

  • Construction Technique Overview
  • Project Selection Guidance
  • Project Case Studies
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Pavement Recycling Processes

Full Depth Reclamation (FDR)

Typical Depth: 5 - 12 inches Stabilizer: Emulsified/ Foamed Asphalt or Portland Cement

Cold In-place Recycle (CIR)

Typical Depth: 3 – 5 inches Stabilizer: Emulsified/ Foamed Asphalt

Cold Central Plant Recycle (CCPR)

Typical Depth: 3 - 6 inches Stabilizer: Emulsified/ Foamed Asphalt Agency Usage:

  • Alternate to Reconstruction

Agency Usage:

  • Alternate to Deeper Mill and

Fill Agency Usage:

  • Structural Base Layer

Distress Categories

  • Surface Defects  CIR, CCPR

– Raveling, Potholing, Bleeding

  • Non- Load Associated Cracking

– Block, Longitudinal, Transverse, Reflective

  • Load Associated Cracking

– Fatigue, Edge

  • Deformation

– Rutting, Shoving

Distress Categories

  • Surface Defects  CIR, CCPR

– Raveling, Potholing, Bleeding

  • Non- Load Associated Cracking 

CIR, CCPR

– Block, Longitudinal, Transverse, Reflective

  • Load Associated Cracking

– Fatigue, Edge

  • Deformation

– Rutting, Shoving

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Distress Categories

  • Surface Defects  CIR, CCPR

– Raveling, Potholing, Bleeding

  • Non- Load Associated Cracking
  •  CIR, CCPR

– Block, Longitudinal, Transverse, Reflective

  • Load Associated Cracking FDR

– Fatigue, Edge

  • Deformation

– Rutting, Shoving

Distress Categories

  • Surface Defects  CIR, CCPR

– Raveling, Potholing, Bleeding

  • Non- Load Associated Cracking  CIR, CCPR

– Block, Longitudinal, Transverse, Reflective

  • Load Associated Cracking  CIR, CCPR

– Fatigue, Edge

  • Deformation FDR, CIR, CCPR

– Rutting, Shoving

What Is FDR?

  • Deepest Recycle Treatment

(5 - 12 in.)

  • Uniformly crushed,

pulverized and blended with stabilizer

  • Results in stabilized base

course

  • Requires Wearing Course
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Full Depth Reclamation

  • Three Types of FDR

– Mechanical Stabilization

  • Pulverization
  • Compaction

– Bituminous Stabilization

  • Emulsified Asphalt
  • Foamed Asphalt

– Chemical Stabilization

  • Cement

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Full-Depth Reclamation

Bituminous Stabilized FDR Chemical Stabilized FDR Subgrade Subgrade Aggregate Base

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Completed FDR

Emulsion FDR Mat Cement FDR Mat

Samaria Road

  • Original Construction in 1964

– Length of roadway 10.3 miles – Non Reinforced 8” concrete pavement – 18” dowel bars on center joint at 24” spacing – Designed as “floating” concrete pavement

  • MDOT turned roadway over to the County

– With no funding to maintain

  • Severe deterioration for last 20 Years
  • Fall 2013 Michigan Legislature sets aside $5

million for reconstruction

How to reconstruct for $5 Million?

  • “Normal” construction techniques would exceed

budget

  • Project needed to be completed in phases
  • Access to residents and businesses to be

maintained

  • Profile could not be raised
  • Project Completion date set for November
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How to reconstruct for $5 Million?

  • Contractors had excess amounts of RAP stockpiled
  • County to use removed concrete as aggregate for
  • ther road projects
  • Buy-in from the County Road Commission to use

recycled materials for the new construction

  • Contractors bids ranged from $5.8 million to $4.5

million

Construction: Concrete Removal Existing Aggregate Base

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Placement of RAP RAP Compaction 8” FDR with Emulsified Asphalt

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Asphalt Overlay – 2” Level 1 ½” Surface

Finished Pavement Samaria Rd Fall 2018

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Start to Finish

Cold In-place Recycling

Existing HMA CIR

What Is Cold In-place Recycling?

3

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CIR Equipment Types

CIR Operation

IL SR 130: Philo Rd

  • Composite Pavement
  • 8 in JRCP
  • ~4” HMA
  • 6k – 7k ADT
  • Less than 3% Trucks
  • Solution:
  • 4.0 inch CIR
  • Multiple Lift HMA Overlay
  • 1.25” Leveling
  • 1.5” Surface

CIR cost equivalent to 1.25 inches of leveling binder

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IDOT SR 130 IDOT SR 130 IDOT SR 130

Construction Issues

  • CIR Processing Occurred Late May

– early June

  • Then it started to rain
  • CIR Material Set Up
  • Moisture remained in the CIR
  • Bath tub Effect with Shoulders

– High moisture made paving HMA Difficult to Compact

  • Drains Installed September
  • CIR Carried Traffic for 3 Months
  • CIR Surfaced with 2 Lifts of HMA
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IDOT SR 130

Data and Pictures Provided by Marshall Thompson

IDOT SR 130

Pictures Provided by Marshall Thompson

IDOT SR 130

Pictures Provided by Marshall Thompson

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IDOT SR 130

Information Provided by Marshall Thompson

WV DOH – Ravenswood SR 2

  • 4 Lane Divided Highway
  • 65/45 mph zone
  • Driving Lane impassable
  • Emergency 1.25 inch inlay
  • Composite Pavement
  • 64k sq. yds of CIR

WV DOH – Ravenswood SR 2

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WV DOH – Ravenswood SR 2 WV DOH – Ravenswood SR 2 WV DOH – Ravenswood SR 2

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WVDOH Ravenswood SR 2 IRI Data

Operator Fugro Fugro Fugro Fugro WV DOH (ICC) Year 2014 2015 2016 2017 2018 Start Milepost (mile) Stop Milepost (mile) Avg IRI (in/mi) Avg IRI (in/mi) Avg IRI (in/mi) Avg IRI (in/mi) Avg IRI (in/mi) 1.2 1.3 220.1 176 71.1 112 114.9 1.3 1.4 201.1 138.2 192.8 54.4 55.5 1.4 1.5 234.9 101.8 57.1 53.7 67.6 1.5 1.6 240.4 171.1 54.3 64.6 55.1 1.6 1.7 236.9 110.9 57 59.3 71.8 1.7 1.8 181 117.4 55.5 60.9 57.8 1.8 1.9 171.2 112 57.1 59 49.7 1.9 2 163.8 115.9 62.8 52.9 50.9 2 2.1 217.4 110.6 53.4 55.5 47.4 2.1 2.2 187.9 133.4 51.3 61.5 65.5 2.2 2.3 224 86.1 57.2 81.1 43.3 2.3 2.4 234.9 102.7 57.2 60.7 51.0 2.4 2.5 162.2 99.9 80.5 56.7 49.0 2.5 2.6 134.6 122.9 55.6 60.7 59.0 2.6 2.7 161.8 101 56.2 58.6 55.8 2.7 2.8 86.7 123.6 59.3 65 57.0 2.8 2.9 107.8 114.8 56.5 75.9 68.2 2.9 3 122.8 71.7 58.1 55.9 66.3 3 3.1 71.9 97.5 70.8 59.1 3.1 3.2 205.1 133.2 62.7 69.5 55.3 3.2 3.3 143.4 95.2 53.2 74.2 53.7 3.3 3.32 171.6 149.5 68.1 125 100.6 10.86 10.9 105 78.6 89.5 64.1 81.0 10.9 11 90.5 81 72.5 Average 169.9 115.8 67.4 67.2 62.6

Operator Fugro Fugro Fugro Fugro WV DOH (ICC) Year 2014 2015 2016 2017 2018 Start Milepost (mile) Stop Milepost (mile) Avg IRI (in/mi) Avg IRI (in/mi) Avg IRI (in/mi) Avg IRI (in/mi) Avg IRI (in/mi) Average 169.9 115.8 67.4 67.2 62.6

Data Provided by WV DOH

Cold Central Plant Recycling

Stockpile at “Central Plant”

You can’t fix what you can’t touch

Stockpile and Central Plant

Processed RAP Recycling Unit Newly Recycled Material Recycling Agent

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Hauling CCPR Material

Cold Central Plant Recycling

Source

  • RAP Stockpile
  • Current Roadway
  • Other Roadway

CCPR Placed on

  • Aggregate Base
  • Stabilized Bases
  • CCPR
  • Existing Pavement

CCPR Case Study: INDOT SR 101

  • Project Background
  • 8 Miles in Length
  • Major Collector NE of Fort Wayne
  • HMA over Base over low strength subgrade
  • Narrow travel lanes
  • Proposed Solution
  • Widen Pavement
  • Increase subgrade strength
  • Combination of recycling techniques
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20’ Width

CCPR Case Study: INDOT SR 101

ASPHALT Stockpile Material

Pave HMA

Cement FDR

26’ Width

Pave CCPR

CCPR Case Study: INDOT SR 101

How might we fix these roads?

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How might we fix these roads? How might we fix these roads?

Keys for Successful Projects

  • Right road, right time, right treatment

– Process Selection

  • Utilize Engineered Process

– Project Scoping – Stabilizer Selection – Mix Design – Quality Control

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Thank you!

  • Questions?
  • Comments?
  • Jason Wielinski, P.E.
  • Heritage Research Group
  • Jason.Wielinski@hrglab.com

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