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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Wisdot bureau of technical sevices spring 2014 qmp training

Base Compaction SPV’sand Project Design Guidance

WisDOT Bureau of Technical Sevices

Spring 2014 QMP Training


Outline

Outline

How’d we get here

Project selection/design guidance

SPV highlights

Still to come


How d we get here

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.


Wisdot bureau of technical sevices spring 2014 qmp training

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.


Wisdot bureau of technical sevices spring 2014 qmp training

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


Wisdot bureau of technical sevices spring 2014 qmp training

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

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

Misc Requirements

  • Personnel

    • HTCP Nuclear Density Technician I

    • Or ACT certified technician

  • IA

    • According to the Department’s independent assurance program


Target density determination

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

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

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

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

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

Corrective Action


Measurement and payment

Measurement and Payment

1 ¼ - Inch BAD; Tons

Mill/Pulverize and Relay; SY

Water; MGal


Wisdot bureau of technical sevices spring 2014 qmp training

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


Wisdot bureau of technical sevices spring 2014 qmp training

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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