1. Quality Assurance For Emulsion Treatments In Pavement Preservation
Quality Assurance Essentials
Quality Assurance For Emulsion Treatments
In Pavement Preservation
By: Colin A. Franco, P.E. – RIDOT
Todd Shields - IADOT
Indianapolis – June 20-21, 2018

2. PPETG Emulsion Task Force and Quality Assurance Webinar Outline
ETF Introduction
ETF Mission
ETF Accomplishments
ETF Looking Ahead
Overview of QA
QA Specification for Chip Seal

3. PPETG Pavement Preservation Expert Task Group (PPETG)
Established in 1991 – (Jim Sorenson of FHWA)
Promote the institutionalization of the concepts of pavement preservation
Parent group of “Emulsion Task Force”
Note: The Emulsion Task Force (ETF) was created from the PPETG in 2008.

4. PPETG Mission of PPETG Goals of PPETG
To advance and improve the state of the practice in the area of pavement preservation.
Working collaboratively with:
Federal Highway
Industry (Contractors, Vendors, Suppliers)
State Agencies
Consultants
Local Agencies
Academia
Goals of PPETG
Acceptance and Implementation of pavement preservation by state and local agencies
Integrate pavement preservation into pavement management / asset management

5. ETF ETF originally part of the ETG
The ETF is an all volunteer stake holder working group
ETF is now an AASHTO affiliated Group supported by the TSP2 program

6. ETF ETF - Original Mandate
Develop Performance Based Methods and Specifications for Emulsions (SPG)
Develop a Surface Performance Grade Specification for Emulsion (SPG)
Develop Performance Based Specifications for Emulsion Treatments in AASHTO Format
Materials specifications and tests
Design practices
Construction guide specs
QA specifications

7. ETF - Original Mandate (cont.)
Encourage Adoption of Uniform National Standards
AASHTO – TSP2
PP Regional Partnerships
AASHTO Comp
FHWA – (PP)ETG
TRB (Webinars)

8. Current Membership (2013 – Present)
ETF
Current Membership (2013 – Present)
Co-Chair- Colin Franco RIDOT Co-Chair- Chris Lubbers - Kraton Polymers Members From: - Industry: AEMA/ ARRA/ ISSA/FP2 - Academia: CSU/ Tx A&M/ U.WISC/ NC State - State DOT’s: TX, IA, RI, MN - FHWA & Federal Lands - National Center Pavement Preservation (NCPP)

9. Current Subcommittees (2013 – Present)
ETF
Current Subcommittees (2013 – Present)
Residue Recovery and Testing
Arlis Kadrmas (Chair) BASF - AEMA
Design Group
Spray – Gary Hicks (Co-chair) - CSU
Mix – Jim Moulthrop (Co-chair) - Fugro FP2
Supplier Certification and Quality Assurance
Larry Galehouse
Todd Shields (Co-Chair) - IADOT
Recycling Emulsions
( VACANT )
Research
(VACANT)
SWG (Special Working Group) – Cood the SPG development and emulsion binder specifications among all the subcommittee/among treatments – Mike Voth (FHWA Lands)

10. ETF
Development of a SPG Specification for Emulsion using Superpave Principles
SWG Chair, Mike Voth of Federal Lands is leading this effort
Research and Field studies being used for SPG development:
TxDOT – Chip seals, Darren Hazlett with Dr. Amy Epps
NCHRP project 9-50 – Dr. R. Kim at NC State
Federal Lands chip seal research by Gayle King
Note:
SPG - Surface Performance Graded
(2)This work will supplement the TxDOT SPG spec currently at the AASHTO SOM.

11. Emulsion Treatments Requiring AASHTO STDs
ETF
Emulsion Treatments Requiring AASHTO STDs
Chip Seal
Micro surfacing
Tack Coat
Fog Seal
Scrub
Sand Seal
Slurry Seal
Foam Asphalt Stabilization
Bonded Surface Treatment (NOVA Chip)
Cold Mixes
Virgin
Recycled
CIR

12. Construction Guide Specs Emulsion Binder Standards
AASHTO STANDARDS
Emulsion Treatments
M / MP
T / TP R
W/ SOM
Comments
Construction Guide Specs
Best Practices
Chip Seal
MP27-16
PP82-16 
NCHRP 14-37
Microsurfacing
MP28-16
PP83-16 
Tack Coat
 MP-XX*
 PP-XX*
Fog Seal
MP33-17
 PP88-17
Scrub Seal
 Y**
PP91-18
Sand Seal
 MP34-18
PP90-18
Slurry Seal
MP32-17
PP87-17 
Foam Asphalt Stabilization
Bonded Surface Treatments (Nova Chip)
Cold Recycled Mixtures
MP31-17 
PP86-17 
NCHRP 9-62
Legend
Emulsion Binder Standards
NCHRP
M=Material Specs
Emulsified Asphalt
M140-16
T=Test Methods
Cationic Emulsified Asphalt
M208-16
R=Design Practices
Polymer-Modified Cationic Emulsified Asphalt
M316-16
P=Provisional
Emulsion/Surface Performance Grades
9-63
* Tack coat standards will be published in August 2018
** Materials Spec on hold by ETF

13. PP Project Development
ETF
PP Project Development
Project Selection – Pavement Management / Asset Management
Project Contract Development

14. Asset Management Through Pavement Preservation
ETF
Asset Management Through Pavement Preservation

15. Pavement Preservation Project Development:
ETF
Pavement Preservation Project Development:
Project Selection – for the STIP
Pavement Management System
Experience of Pavement/Maintenance Engineers
Project Design/Contract Documents
Materials standards and specs for Emulsion Treatments
Materials Specifications (M-Stds)
Materials Tests (T-Stds)
Materials Design Practices (R-Stds)

16. (PP) Project Development (cont.)
ETF
(PP) Project Development (cont.)
Construction guide Standards
Construction Guide Specifications
Quality Assurance Specifications
Acceptance Decision
Quality Control
Independent Assurance
Certification

17. QA Protocols - Emulsion
ETF
QA Protocols - Emulsion
Outcome of a QA Program for All Emulsion Treatments
based on 23 CFR 637
Materials QA:
Acceptance Testing (Agency)
QC - Quality Control (Contractor)
IA - Independent Assurance (Agency)
New Process / Product Acceptance Procedures
Materials Certification:
Agency Acceptance Plans
QC Plans (Contractor)
Vendor Supplied Material Certifications
Workmanship QA:
Equipment Calibration
Construction Process Checks

18. ETF QA Protocols – (Cont.) Education and Training:
Define the training needs for Agency / Contactor Staff
Education and Training Resources
NHI
TCCC
Industry Sponsored Training
Certification Program for Contractor / Agency Field Staff
Note: National Center for Pavement Preservation is taking the lead on education and training.

19. Pavement Preservation: Quality Assurance Essentials

20. Quality Assurance – Definition & Regulation
AASHTO R10 & TRB Circular E-C 037
Quality Assurance – All those planned and systematic actions necessary to provide confidence that a product or facility will perform satisfactorily in service …
QA Regulated through 23 CFR 637

21. Source: IBA Consultants, Inc.

22. Quality Assurance Program
Core Elements of a
Quality Assurance Program
Establishes the core programmatic elements required to achieve quality materials and workmanship.
QA Program
Agency Acceptance
Dispute Resolution
Independent Assurance
Contractor QC
Lab Qualification
Personnel Qualification

23. Contractor Quality Control (QC)
Quality Control - QC - “The system used by a Contractor to monitor, assess and adjust their production or placement processes to ensure that the final product will meet the specified level of quality.”
Definition

24. Contractor Responsibility for Quality Control
QC is the responsibility of the Contractor
The party producing or placing the product is in the best position to exercise Quality Control

25. Scope of Quality Control Activities
Contractor’s QC system should address:
Materials production processes
Materials transportation and handling
Field placement procedures
Calibration and maintenance of equipment
Activities (sampling, testing and inspection) to maintain each process in control
Means to make timely adjustments and corrections

26. Contractor QC Operating Documents – QC Plan
Quality Control Plan - A project specific document prepared by the contractor which identifies QC personnel and procedures that will be used to maintain production and placement processes in control and meet the agency specification requirements.
QC Plan

27. Agency Acceptance Program
Agency determination of the quality of the product as specified in the contract requirements.
Monitor adequacy of QA activity
Verification sampling and Testing – materials, products, and workmanship
Inspection / Monitoring of Workmanship

28. Acceptance Function The primary objectives of agency acceptance are:
Measure the Quality of all materials produced and placed by the contractor
Determine the corresponding payment the contractor should receive
Acceptance is not focused on directing the methods used to achieve conformance

29. Independent Assurance - IA
Independent Assurance - “Activities that are an unbiased and independent evaluation of all the sampling and testing procedures used in the Quality Assurance Program”

30. Independent Assurance – IA (cont.)
Performed by Agency or Designated Agent personnel who are not directly responsible for project Acceptance sampling and testing
Provides periodic independent evaluation of QC and Acceptance personnel and their equipment
Not used to make a determination of work quality or acceptability

31. Laboratory Accreditation Required For:
Agency Central Laboratories
Consultant Labs used for Independent Assurance (IA)
Consultant Labs used for Dispute Resolution

32. Laboratory Qualification
Agency Laboratory Qualification Program
For all other Labs performing sampling and testing that are utilized in the Agency’s acceptance decision

33. *May be used for qualification
Requirement for Personnel Qualification / Certification
A complete personnel qualification/certification program should include, at minimum:
Formal training
On-the-job training
re-qualification intervals
Proficiency demonstration
A written exam*
A process for disqualification or decertification
*May be used for qualification

34. Materials Testing Dispute Resolution
Dispute Resolution - The procedure used to resolve discrepancies between the Agency’s Acceptance and Contractor’s QC testing results that could impact payment.
Dispute Resolution system required when QC results used in Acceptance decision.

35. Responsibility for Dispute Resolution
Can be performed within the DOT
Use of accredited third party laboratory can be used.

36. Questions ?

37. ETF Initiated Research Projects
NCHRP Projects
NCHRP – Construction Guide Specs for Chipseal and Microsurfacing
NCHRP 9-62 – Asphalt Treated cold recycled pavement – Rapid Tests and Specs
D-21 – SPG Performance Specs for Emulsions
ETF Sponsored Research
Emulsion Residue Properties