Pre-Paving Agenda

Project Information

Date:
Project:
CSJ:
Specification:
Highway:
County:
Contractor:
Producer:
Plant Location:
Proposed Start Date:
Proposed Completion Date:

Contact Information

Name / Phone
Area Engineer’s Office:
TxDOT (Level 1A):
Contractor (Level 1A):
Contractor (Level 1B):
TxDOT (Level 2):
Contractor (Level 2):
Profiler:
Laydown Superintendent:
Plant Operator:

Production

  1. Has a quality control plan been submitted by the Contractor and approved by the Engineer? YES / NO
  2. Have mix designs been approved for the project in accordance with specification? YES / NO
  3. Has all design paperwork and all mix materials been submitted? YES / NO

If NO, provide a date the paperwork and materials will be submitted? ______

  1. Has a trial batch been produced and approved? YES / NO

If NO, provide a date the paperwork will be submitted? ______

  1. Mix Type: ______Design #: ______Project Tonnage: ______
  2. The Contractor is responsible for notifying the Engineer if any changes occur in material sources. A new design will be required unless otherwise approved by the Engineer.

Lot Size Selection

  1. First day’s production (Lot 1) will be 1,000 tons.
  2. The Engineer will select subsequent lot sizes based on anticipated daily production. The lot size will be between 1,000 – 4,000 tons.
  3. The inspector and paving superintendent should have a discussion prior to making any changes to the lot size. Notify lab and plant personnel of any changes. The goal is to choose a lot size that consistently achieves 4 sublots per day.
  4. Discuss where to end lots. (Exact Tonnage, Nearest Ticket to Tonnage, etc.)
  5. Discuss incomplete lots and sublots. (Will you carry into following production day or close out and begin new Lot)
  6. Identify personnel with authority to adjust and approve JMF changes and approve acceptable changes.

TxDOT Level II:
Contractor Level II:

Project Production Testing

  1. Sample and test material at the frequency list in Specification. Contractor samples should be split into Contractor and Referee. Engineer should be split into Contractor, Engineer and Referee. Compare results to Operational Tolerances according to Specification.
  2. All production testing by both the Engineer and Contractor must be completed and reported as requested. Immediately report any test results that requires the Contractor to suspend production or fails to meet the specification requirements.
  3. The Contractor shall cease production if the operations tolerances are exceeded. Production may resume when test results or other information indicated the next mixture produced will be within operational tolerances.
  4. The Contractor may request referee testing if the difference between Contractor and Engineer test results exceed the operational tolerances. The Contractor has working days to request the testing.
  5. At anytime during production the Engineer may require the Contractor to verify that the lime content, fiber content, CRM content is within the tolerances listed in Specification.
  6. When directed, the Contractor will maintain control charts at the plant. The charts will be updated after each sublot. The Engineer may suspend production for failure to update control charts.

Project Placement Testing

  1. The Contractor’s Level 1B will perform the thermal profiles.
  2. Discuss thermal profile testing frequencies and how to handle any failing test results.
  3. Preliminary test results may be paper copies and should be reported as soon as practicable. The Contractor should report final results electronically using TxDOT’s forms within the agreed upon timeframe.

Construction Procedures

  1. Typical Section: ______
  2. Placement Widths: ______
  3. Placement of Construction Joints: ______
  4. Tack Coat: Shall be used at the direction of the Engineer.
  5. The surface shall be thoroughly cleaned to the satisfaction of the Engineer.
  6. A uniform application of tack shall be applied. The TxDOT inspector will monitor the tack application rate.
  7. The tack coat shall be applied to a clean surface at a rate of 0.04 to 0.10 gal/sy
  8. If using an emulsion, do not dilute the emulsion.
  9. Verify that the proper amount of residual asphalt is applied.
  10. Allow enough time for the tack coat to break and set.
  11. Verify that the tack coat has adequate adhesion properties. The tack should “stick” like glue and not “coat” like motor oil.

For more information, take a look at the following article:

Proper Use of Tack Coat: ftp:ftp.dot.state.tx.us/pub/txdot-info/cst/tips/tack_coat.pdf

  1. Placement Rate (Yield): ______
  2. Procedures for Edge Tapers, Intersection and Driveways
  3. Cross Slope: % main lanes and % shoulders
  4. Traffic Control Plan: ______

Ride Quality Item 585

  1. Is Ride Quality required? YES / NO
  2. What Pay Adjustment Schedule is required? YES / NO
  3. What type of equipment (straightedge, profiler, etc.) will be used for contractor quality control testing?
  4. Will a high speed or lightweight profiler be used for quality assurance (QA) testing?
  5. Ensure that profiler and operator are certified and that certification is current.
  6. The Contractor will notify TxDOT prior to beginning QA testing. (24 hours notification preferred)
  7. Profile measurements must be submitted to the Engineer within 24 hours of completion and with an approved format specified in Test Method Tex-1001-S.

Miscellaneous

  1. Review applicable Special Provision: SP ______
  2. Review of General Notes – material transfer device, backfill requirements etc.
  3. Waterproof tarps are required on all loads.
  4. Review Adverse Weather Conditions.
  5. Loads that are produced in excess of 350°F will be rejected. Monitor and make corrective action to ensure the mix delivered to the paver does not drop below 280°F. (Warm Mix Asphalt target temperature discharge range is 215°F and 275°
  6. Surface Irregularities: If a pattern of surface irregularities is detected (including, but not limited to, color, texture, roller marks, tears, uncoated aggregate particles, or segregation):
  7. The Contractor shall make an investigation into the cause or causes and immediately take the necessary corrective action.
  8. Placement may continue for no more than (1) day of production from the time the Contractor is first notified and while corrective actions are being taken.
  9. If no corrective action is taken or if the problem exists after (1) day, paving shall cease until the Contractor further investigates the causes and the Engineer approves further corrective action.
  10. Remove & Replace, at the Contractor’s expense, any mixture that does not bond or has surface irregularities.
  11. Use only a steel wheel roller, operated in the static mode, to seat the mixture.

August 2015