Wisdot bureau of technical sevices spring 2014 qmp training
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B ase Compaction SPV’s and Project Design Guidance. WisDOT Bureau of Technical Sevices Spring 2014 QMP Training. Outline. How’d we get here Project selection/design guidance SPV highlights Still to come. How’d We Get Here?. 2013 pilot projects IH-43 Ozaukee Co.

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WisDOT Bureau of Technical Sevices Spring 2014 QMP Training

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Base Compaction SPV’sand Project Design Guidance

WisDOT Bureau of Technical Sevices

Spring 2014 QMP Training


Outline

How’d we get here

Project selection/design guidance

SPV highlights

Still to come


How’d We Get Here?

  • 2013 pilot projects

    • IH-43 Ozaukee Co.

    • USH 63 St. Croix Co. (x2)

    • STH 179 Crawford Co.

    • STH 29 Brown Co.

    • STH 153 Marathon Co.

  • Spec revisions

    • 1 ¼ – Inch BAD

    • Mill/Pulverize and Relay

    • STH 47 Vilas Co.

    • USH 51 Lincoln Co.

    • STH 73 Wood Co.

    • STH 29 Marathon Co.

    • Fishel Road Forest Co.


ProjectSelection – BaseAgg. Dense

  • HMA surfaced mainline

  • AND QMP Subgrade and/or Subgrade improvement

  • AND 30,000 tons+

  • Between 2010 and 2013

  • 17% of all let projects

  • 31% of HMA projects

  • 54% of HMA projects with 1-1/4” base agg.


Project Selection - Mill/Pulv.& Relay

5

  • Minimum Mill and Relay or Pulverize and Relay Quantity of 40,000 SY

  • Between 2010 and 2013

  • 3% of all let projects

  • 43% of pulverize and relay projects

  • 56% of mill and relay


Special Provision – Highlights

6

  • QC plan

  • IA requirements

  • Personnel requirements

  • 93% of target density

  • Test frequency

  • “Failing” test/corrective action

  • Measurement and payment


QC Plan Requirements

Organizational chart

Communication process

Source locations list (1 ¼” spec only)

Stockpiling and hauling methods (1 ¼” spec only)

Process control problem resolution process

QC lab, sample, and documentation storage locations

Estimate of locations and calculated quantities to be tested under this provision.


Misc Requirements

  • Personnel

    • HTCP Nuclear Density Technician I

    • Or ACT certified technician

  • IA

    • According to the Department’s independent assurance program


Target Density Determination

  • 1 ¼ - Inch Base Aggregate Dense

    • ≤20% Recycled Material

      • Modified Proctor Max Dry

    • >20% Recycled Material

      • Mod. Proctor Max Wet

      • Mod. Proctor Max Dry

      • Control Strip

  • Mill/Pulverize and Relay

    • Control Strip


Test Frequency – QC/CA

  • 1 ¼ - Inch Base Aggregate Dense

    • Density – 1 per 1500 tons

    • Gradation – 1 per 3000 tons

    • Proctor – initial and then if trigger met

  • Mill/Pulverize and Relay

    • Density – 1 per 3000 tons

    • Proctor – initial and thenif trigger met

  • CA – Optional Information

    • Process control decisions

    • Troubleshooting

    • Limiting liability and/or corrective action limits


QC/CA – Proctor Triggers

  • 1 ¼ - Inch Base Aggregate Dense

    • Gradation change > 10.0%

    • Source change

    • Recycle material blend change > 10.0%

    • Density > 103% on two consecutive measurements

    • If using control strips; thickness change > 2.0 inches

  • Mill/Pulverize and Relay

    • Layer thickness change > 2.0 inches

    • Density > 105% or <90.0%; AND outside of range of 10 avg control strip shots; on three consecutive measurements


QV Frequencies

  • Density and gradations

    • 30% of Contractor Frequency

  • Target densities;

    • Same triggers as QC

    • Control Strips

      • QV person must be present and verify sufficient compactive effort (including addition of water)

      • Will use same value as contractor


IA Highlights

  • Evaluate QV and QC sampling and testing

  • May include one or more of the following:

    • Split sample testing

    • Proficiency sample testing

    • Witnessing sampling and testing

    • Test equipment calibration checks

    • Additional sampling and testing


Corrective Action


Measurement and Payment

1 ¼ - Inch BAD; Tons

Mill/Pulverize and Relay; SY

Water; MGal


Still To Come

16

  • Facilities Development Manual guidance – March 2014

    • Project selection guidance

    • Water bid item

      • 10 – 20 gallons per ton 1 ¼ - Inch BAD

      • 3 – 6 gallons per SY Mill/Pulverize and Relay

  • Revisions – Fall 2014

  • Conversion to STSP – Spring 2015


ftp://ftp.dot.wi.gov/dtsd/bts/pavement/Base_Comp_Docs

17

Questions

Now or On Projects

[email protected]

or

(608)220-0690


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