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Blueprint Changes to the Asphalt ProgramRegional Asphalt Meetings. David Lee, P.E. Salem District Materials Engineer March 2010. Overview. Blueprint TeamReview of VDOT ProcessesTeam RecommendationsStatus of Recommendations. Blueprint Team. David Lee
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1. FIRST SLIDEFIRST SLIDE
3. Overview Blueprint Team
Review of VDOT Processes
Team Recommendations
Status of Recommendations
4. Blueprint Team David Lee Chair, Salem Materials
Haroon Shami Culpeper Materials
Steven Mullins Bristol Materials
Richard Schreck VAA Rep.
Rick James VTCA Rep
David Branscome Old Dominion Rep
Trenton Clark Scribe
5. Quality Assurance Program Required by 23 CFR 637B
Includes QA, IA, VST and QC
By law, must be performed on:
Federal Aid Projects on the National Highway System
By spec, QC required on all VDOT projects Stress all changes must still comply with 23 CFR 637B Quality Assurance Procedures for ConstructionStress all changes must still comply with 23 CFR 637B Quality Assurance Procedures for Construction
6. Definitions 23 CFR 637B QA Quality assurance; All factors that comprise the State highway agency's (SHA) determination of the quality of the product as specified in the contract requirements. These factors include verification sampling, testing, and inspection and may include results of quality control sampling and testing
VST Verification sampling and testing; Sampling and testing performed to validate the quality of the product
IA Independent assurance; Activities that are an unbiased and independent evaluation of all the sampling and testing procedures used in the acceptance program
QC Quality control; All contractor/vendor operational techniques and activities that are performed or conducted to fulfill the contract requirements Review of definitions since we have changed what we call things.Review of definitions since we have changed what we call things.
7. Review of VDOT Processes Asphalt Plant
Asphalt Lab
Asphalt Field
VDOT Lab
VDOT Office
Goal identified time consuming activities that can be modified or eliminated
8. Team Recommendations Move to Web-Based collection and entry of contractor QC lab data and VDOT VST core data
Modify VDOT Verification and Independent Assurance Testing of Field Quality Control Data
Modify VDOT Verification and Independent Assurance Testing of Lab QC Data
Depth Checks of Base Material
Adoption of new Job Mix Approval Process
9. Status of Recommendations 1 Web-Based Application
Approved by Chief Engineer and Chief of Research and Technology
Planning underway
Scoping meeting to be held in near future
10. Status of Recommendations 1 Web-Based Application
Same functions as current HMA data suite (i.e. control charts, spec checks, materials flags, etc.)
Contractor upload of results to application
Access to VDOT results
Electronic submittal of TL-127
Incorporation of VDOT density data
11. Status of Recommendations 2 Field Verification and Independent Assurance Program
All core/plug based
20% of VST lots monitored; VST lot 5,000 ft
2 cores/plugs per lot
Minimum 1 core per control strip per project verified in VDOT lab
No VDOT nuclear gauge testing
12. Status of Recommendations 3 Lab Verification and Independent Assurance Program
New Mixes 1 sample per first two lots, 1 sample every other lot
Roll-over Mixes 1 sample in first lot, 1 sample every other lot
Lot size 4,000 tons
13. Status of Recommendations 4 Depth Checks on Base
Still in progress
Single lift bases, use density cores/plugs for thickness
Multiple lift bases, VDOT testing in 2010 with allowance for contractor coring
Team established to recommend new approach; recommendations due in May
14. Job Mix Formula 5 New process adopted
To be detailed later
15. Other Work Underway Lot Size for Field Density Acceptance
Material Certification Schools
16. Lot Size Team (VDOT and Industry) working on new approach
Recommendation due in May
Incorporates SMA and Dense Graded Asphalt
17. Materials Certification Schools No changes in schools for 2010
Proficiency testing
Allow contractor testing of personnel
Contractor identified trainer
Trainer must be VDOT certified
Contractor must contact State Materials Engineer with proposed trainer(s)
VDOT test VDOT employees, consultants and non-contractor employees (i.e. local governments)
Details still be worked out; more information to come
18. Blueprint Changes to the Asphalt Program
Regional Asphalt Meetings