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Craig Landefeld, P.E. Construction Pavements Engineer. 2013 C&MS Pavements Specification Updates . Major Changes. 499 – Concrete General 255 – Full Depth Removal and Rigid Replacement 451 – Reinforced Portland Cement Concrete Pavement
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Craig Landefeld, P.E. Construction Pavements Engineer 2013 C&MSPavements Specification Updates
Major Changes • 499 – Concrete General • 255 – Full Depth Removal and Rigid Replacement • 451 – Reinforced Portland Cement Concrete Pavement • 452 – Non-Reinforced Portland Cement Concrete Pavement • 455 – Quality Control Plan (QCP), Testing and Assurance… • 608 – Walks, Curb Ramps, and Steps • 609 – Curbing, Concrete Medians, and Traffic Islands • 202 – Removal of Structures • 251 – Partial Depth Pavement Repair • 320 – Rubblize and Roll • 423 – Crack Sealing • 615 – Roads and Pavements for Maintaining Traffic
499 - Concrete General • What drove the 499 specification changes? • Experience with quality products from QC/QA • Bridge deck evaluation research of 2008/2009
2013 - Specification Changes • What drove specification changes? • Experience with quality products from QC/QA • Bridge deck evaluation research of 2008/2009 • ODOT inspection staff • Opportunity to use industry expertise • Best practices from other states • Only 1 reported state from 34 responding has prescription mixes. • Texas Pavement example:
2013 - 499 Concrete General 499 Specifications changes • A new mix table • Incorporates seven mix classes
2013 - 499 Specification Changes • Supplier owns the mix design for ALL QC mixes • Adjustments greater than 100 lbs. require Engineer approval. • Supplier must maintain gradation in Zone II of the Coarseness Factor Chart.
2013 - 499 Specification Changes • Supplier owns the mix design for ALL QC mixes • Adjustments greater than 100 lbs. require Engineer approval. • Supplier must maintain gradation in Zone II of the Coarseness Factor Chart. • Temperature increase to ACI 95F . • Partial hand written batch tickets not an option
2013 – Concrete Pavement Specification Changes Seven Major Specifications were revised or created • 499 Concrete - General • Prescription mixes Class F, C, S, HP, MS, FS are gone • Well graded aggregate requirements for both 451/452 and 511. • 451/452 Concrete Pavement • Revisions to adopt SS 888 ODOT QC/QA pavement concrete specifications • 455 Quality Control Plan, Testing QC/QA Concrete • Incorporates concrete quality control specifications for 511 and 451/452 into one document • Supplements 1126/1127 • S1126 Mix design submittal for JMF • S1127 New Pay factor criteria for 451, 452 and 511 Three other pavement specifications were updated to reflect material changes • 255 Full Depth Removal with Rigid Replacement • RRCM - special mix design for rapid repair concrete was added. • 608 Walks, Curb Ramps, and Steps • 609 Curbing, Concrete Medians, and Traffic Islands
451-452 Specification Changes • Materials section was updated to reflect the modifications to 499. • References to 455 Quality Control Plan, Testing QC/QA Concrete • Basis of Payment was modified to include “with QC/QA” or without. • Longitudinal tining is now default. Transverse tining only allowed in small areas approved by Engineer. • MIT Scan-2 Equipment is required for DBI paving. • 451.18/S1127 Strength Pay Factors
2013 – “with QC/QA” or without? Without QC/QA • Contractor performs QC to meet CMS 499. • ODOT Perform QC checks on project for compliance with CMS 499 (slump, air, yield). • Beam for every 7500yd2 or fraction thereof daily by ODOT. • Supplier/Contractor responsible to assure your well graded aggregates are maintained in Zone II. • Core for every 2000yd2 by contractor per S1064. With QC/QA • CMS 455 governs QC/QA in addition to CMS 499
455 Quality Control Requirements • Incorporates concrete quality control specifications from SS 888 and SS 898 for 511 and 451/452 into one document • Only when “with QC/QA” is specified in the bid item. • 451-452 – generally over 10,000 Sq Yd • Sets minimum requirements for Contractor’s Quality Control Plan (QCP). • Project Engineer must review and approve QCP and can require changes. • Sets the Quality Assurance testing requirements for the ODOT Project Staff. • Side by side air content – 10% of QC Samples • QA strength core for 1 in 10 QC Strength Cores
Supplement 1126 / 1127 S1126 - Developing and Submitting a Portland Cement Concrete Mix Design for Acceptance • New supplement for Suppliers submission for JMF. S1127 - Pay Factors Determination for Pavement and Structure Concrete • Provides direction for pay factor determination and example calculations.
202 – Steps Removed can be Lump or Foot • Measure along the front edge of each tread. Include the width of an integral wall in the width measurement. • 251 – Partial Depth Pavement Repair • Partial Depth repairs can now be paid for by the Square Yard or Cubic Yard.
320 – Rubblize and Roll • Spec only applies to Reinforced Concrete Pavements. • Construction test pit requirements are redefined. • Particle size control has been adjusted.
423 – Crack Sealing, Hot applied • All items can now be paid for in Square Yards (Square Meters), in addition to Pounds (Kilograms).
615 - Roads and Pavements for Maintaining Traffic • Section 615.01 Description work has been revised to include the removal of appurtenances. • For rigid pavements, deleted the use of Class C concrete and replaced it with Concrete, Class QC 1. • Section 615.10 Basis of Payment: Roads for Maintaining Traffic will include the installation, maintenance, and removal of all fencing, earthwork, guardrail, sidewalk, and all other items as necessary to provide a complete, functional, and safe installation.
ODOT Pavements Specification Changes 2013 CMS Questions??
