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ODOT SPECIFICATION UPDATE
• Ohio Concrete Fall Meeting 2020, November 19, 2020
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ODOT SPECIFICATION UPDATE
Dan Miller, PE
Ohio Concrete Fall Webinar Series
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INTRODUCTION
o CMS Item 451-452
o CMS Item 455
o CMS Item 499/Supplement 1126
o 499.05.D Volumetric Trucks
o 705.29 Fibers in Concrete
Ohio Concrete Fall Webinar Series
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CMS ITEM 451-452 UPDATES
o New Mix Designationo QC1P, Same parameters
o Stone required to meet 703.13 (Freeze-thaw)
o HIPERPAV Requiremento Removed from Specification
o Still eligible for use in the field (QC Tool)
o Dowel Basket Shipping Wireso Can remain in place
o Assure firm placement and alignment
Ohio Concrete Fall Webinar Series
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CMS ITEM 451-452 UPDATES
o Jointso Sawing Requirements Condensed
Ohio Concrete Fall Webinar Series
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CMS ITEM 455 REMINDERS
o Requirements:o Project Specific QC Plan
o AASHTO Accredited Laboratory
o Keep in good standing
o ACI Field and Strength Certified Staff
o Deliver all cylinders timelyo QC to QC lab, one set of QA to
ODOT Lab
o Maintain good recordso Daily diaries, photographs, etc.
Ohio Concrete Fall Webinar Series
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CMS ITEM 499 UPDATES
Ohio Concrete Fall Webinar Series
oMix Design Updates for 2019oQC1P Pavement Mix Design
oRequires 703.13 aggregates
o 4500 psi, 2000 Coulombs or less
oQCSCC Self-Consolidating Concrete
oRequires Super Structure (SS) Aggregate
o 4500 psi, 1500 Coulombs or less
oNot required to be Well Graded
o Addition of Slump Flow Table for SCC Concrete
o Followed ACI 237R Guidance
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CMS ITEM 499 UPDATES
Ohio Concrete Fall Webinar Series
oMixes granted based on Slump Flow Class
oFor use with decorative applications
oHeavy reinforcement congestion
oCurrently being used in other areas
oPrecast/Prestress/Pipe
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SUPPLEMENT 1126 AND SCC
Ohio Concrete Fall Webinar Series
oSupplement 1126 and SCC
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SUPPLEMENT 1126 AND SCC
Ohio Concrete Fall Webinar Series
Source: RMCA of Ontario
ASTM C1621 J-Ring TestASTM C1611Slump Flow
ASTM C1712 Penetration
Source: Humboldt Mfg. Co.
ASTM C1610 Static
Segregation Column
So
urc
e: H
um
bo
ldt
Mfg
. C
o.
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CMS ITEM 499 UPDATES
Ohio Concrete Fall Webinar Series
o499.04 Requirements/Reminders
oDo not exceed the w/cm or w/p ratio at any time
o Adjust aggregates as needed
o 100 Pound Change (no approval needed)
o >100 Pound Change (MUST notify Engineer)
o Provide updated COMPASS report
o Addition of Non-chloride Accelerator
o Requires Engineer approval prior to use
o Additions on site
o Assure truck remains in time (90 minutes)
o Do not exceed w/cm or w/p ratio
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CMS ITEM 499 UPDATES
Ohio Concrete Fall Webinar Series
o499.04 Requirements/Reminders (Cont.)
o 499.04.H
o Additions on site (499.08)
o Assure truck remains in time (90 minutes)
o Do not exceed w/cm or w/p ratio
o R.O.T. is 2 attempts to adjust air
o If can’t bring in spec, reject the truck
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VOLUMETRIC TRUCKS
Ohio Concrete Fall Webinar Series
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VOLUMETRIC TRUCKS
Ohio Concrete Fall Webinar Series
oVolumetric Trucks and ODOT
oWhere to use?
oCurrently used on Latex Modified Concrete
o SS847 and SS848 applications
o Item 613 Low Strength Mortar Backfill
oManhole and monument adjustments
oQCMISC applications
oQCMS/FS high early patching situations
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VOLUMETRIC TRUCKS
Ohio Concrete Fall Webinar Series
o499.05.D
oMixers conform to ASTM C 685
o Sections 7, 8, 9, 10, 11, 13
o Documentation needed:
o Process control plan
o Product Quality Control Plan
oMaterial handling, storage, etc.
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VOLUMETRIC TRUCKS
Ohio Concrete Fall Webinar Series
o499.05.D (Calibration)
oWhen will the truck be required to be calibrated?
o Possibly per project depending on materials
oWill moisture adjustments be required
oRequirement will be similar to 499.06
oWill it be tagged like a ready-mix truck or a plant?
o Each truck must have a tag
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VOLUMETRIC TRUCKS
Ohio Concrete Fall Webinar Series
oTable 499.06-2 (Batching Tolerances)
oWhen will the truck be required to be calibrated?
o Possibly per project depending on materials
oWill moisture adjustments be required
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705.29 SYNTHETIC FIBERS FOR CONCRETE
o Added 7/17/2020o Follows Illinois Tollway, ILDOT, INDOT
Ohio Concrete Fall Webinar Series
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705.29 SYNTHETIC FIBERS FOR CONCRETE
o Added 7/17/2020 (Cont.’d)o QPL Website
o
http://www.dot.state.oh.us/Divisions/ConstructionMgt/Materials/Pages/QPL.aspx
o Title Contains Guidance on Submittal
Ohio Concrete Fall Webinar Series
http://www.dot.state.oh.us/Divisions/ConstructionMgt/Materials/Pages/QPL.aspx
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QUESTIONS
Ohio Concrete Fall Webinar Series
Dan Miller, MSCE, PE
[email protected]
614-275-1325
mailto:[email protected]
