Barry Paye P.E. Bureau of Technical Services WCPA 2017 Workshop - PowerPoint PPT Presentation

2017 WCPA Concrete Pavement Workshop Barry Paye P.E. Bureau of Technical Services WCPA 2017 Workshop Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Concrete Tech Team Items  Optimized Gradations & Mixtures PEM  Flexural Strength  MIT 2 Scanner  Dowel Bar & Tie Bar Updates  Joint Sealing  Aggregate Specifications  Materials Coordinator Training Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Goal of Optimized Aggregate Gradation and Concrete Mixtures:  Increase the volume of aggregate while decreasing the volume of paste.  Paste = Binder + Water Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Tarantula Curve Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Individual gradations  2- 5 aggregates  Determine optimized combined gradation  Submit gradation  Apply the requirements of the job mix formula Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Allows belt sampling  Sublot of 1500 CY of concrete  Lot is two sublots  4 point running average  Contractor eligible for a 3% incentive Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Reduced cementitious contents could be the new normal  Volume of Paste to Volume of Voids Ratio  New national mix design standard !!! Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  WisDOT participating in national pooled fund research project  WHRP Research starting in 2017 to evaluate current designs with the procedures Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  It is a modified typical ASTM C 231 pressure meter so that it can hold larger pressures  We have replaced the typical gage with a digital one  The test takes 8 - 10 minutes Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop 50 40 Pressure (psi) 30 20 Top Chamber, Pc 10 Bottom Chamber, Pa Equilibrium Pressure 0 Time Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  WisDOT moving toward replacing compressive strength cylinders with flexural strength beams  SPV in use on the IH 39 corridor Madison- Rockford  Department is evaluating the impacts on staff and laboratories for QV testing Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Strength parameter used in design  Key performance parameter Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Beam Molds  Beam Breakers  Curing and Storage of Beams  QC vs. QV and equivalent curing  Custody of beams for QV  Risk Management  Weight of beam and mold  transport Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Same PWL approach as compressive strength  Rejectable quality limit = 500 psi  Lower specification limit = 650 psi  Lot standard deviation less than 60 psi Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Based on 2010 -2015 Flexural Strength Data Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  2016 - first full year for pavement thickness acceptance  Section 415.3.16 of standard specs  References Procedure 8-70.4.7.2 of the CMM  WisDOT reviewed discrepancies between contractor probing data and MIT-Scan results  Cored projects correlated with the MIT-Scan results Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  250 foot basic units  2 plate locations  Measure one location 3 times and average  2 nd location is measured if nonconforming  Coring is the dispute resolution and tool for finding limits of thin Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Dowel bars used on concrete pavement repair and replacement projects. Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Tie bars installed in new concrete are usually #4 deformed bar, 24-inches long spaced between 21 to 48-inches center to center depending on the pavement thickness. Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Spacing based on thickness. Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Beginning in 2018 WisDOT will participate sealing all joints on low speed urban projects  Goal is to keep out incompressible and alleviate joint distress  “Great Unsealing” still valid reviewed high speed rural pavements Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Changes to Section 715 QMP Pavement and Structures  715.3.1.2 Lot and Sublot Definition  Mix design change  For paving mixes, a source change under item 1 of 710.4(5) for fly ash of the same class that does not require a modification under items 2 through 4 of 710.4(5) does not constitute a mix design change.  A new lot should be started when a new source is introduced however. Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop FLY ASH  Class F Ash  Allowed on projects with a December 2016 or later LET.  Not in the 2017 Standard Specifications  Allowed by ASP-6.  Must be listed of the departments APL, Approved Products List.  Currently allows Prairie State Energy located in Marissa, IL. Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Unique Source Identification Number  Aggregate Quality Testing Frequency  Tolerance and Dispute Resolution  Move QMP Base Aggregate STSP to Standard Spec  Lightweight Particles and Chert Revision  Base Coarse Compaction Use Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Changes to Section 501  501.2.5.4.4 Alkali Silica Reactivity Testing and Mitigation Requirements  For course aggregates only:  ASTM C1260  ASTM C1567  501.2.5.4.5(4) to also allow #1 stone-only mixes in foundations for soldier pile walls and noise walls. Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Only recent significant change is 501.2.5.4.4 on Alkali Silica Reactivity Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Changes to Section 106  106.1.2 Project Materials Coordinator  (1) Ensure that this person is certified as having completed the HTCP online materials coordinator training available at: https://www.uwplatt.edu/htcp/mct  (3) Also ensure that the contractor-designated materials person participates in scheduled weekly construction meetings or meets with their department counterpart as requested.  106.3.4.3.2 Process Control  (1) The department doesn’t require or use non-random contractor tests for dispute resolution. Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop  Revised location/registration with HTCP website  MCT-D and MCT-C registration is open ! Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Materials Coordinator Training Registration Wisconsin Concrete Pavement Association February 16, 2017

2017 WCPA Concrete Pavement Workshop Barry Paye Materials Management Section Phone: 608-246-7945 Email: Barry.paye@dot.wi.gov Wisconsin Concrete Pavement Association February 16, 2017