R. Gary Hicks and Todd Shields TSP2 Emulsion Task Force Good - - PowerPoint PPT Presentation

• R. Gary Hicks and Todd Shields

TSP2 Emulsion Task Force

 Good materials specifications  Good design practices  Qualified personnel

• Contractor – actually running the equipment
• Agency – overseeing and accepting

 Solid Quality Assurance

• QA Specifications
• QC Plans
• Agency Acceptance Protocols
• Independent Assurance

Treatments ments

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Materia rials ls

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Design gn Pract ctice ices

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This Photo by Unknown Author is licensed under CC BY-SA

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Guide includes:

 Contractor Quality Control  Agency Acceptance Protocols  Independent Assurance  Currently in DRAFT format  Being reviewed/finalized by ETF

 Quality Control Plan is approved by the Agency  Personnel

• Require TSP2 certification for:

 Job Foreman

• Recommend for:

 Aggregate Spreader Operator  Distributor Operator

 Testing Facilities

• Recommend AASHTO Accreditation Program
• Allow other accrediting body approved by Agency

• Gradation
• Unit Weight
• Bulk Specific Gravity
• Flakiness Index
• Aggregate Absorption
• Fractured Faces
• Deleterious Material
• Application Rates

• Viscosity
• Temperature
• Residue
• Demulsibility
• Sieve
• Storage Stability
• Multiple Stress Creep Recovery (MSCR)
• Ductility
• Elastic Recovery
• Penetration
• Ash Content (cationic)
• Solubility (anionic)
• Application Rate

 Require to be submitted at least 15 days prior to

construction.

 Requires details on:

• Scope – all applicable specifications
• QC Organization – org chart, qualifications
• Testing Facilities and Equipment – testing labs, equipment

calibration

• Materials Control – sources, stockpiling
• QC Activities –

 Workmanship  Materials sampling locations  Test methods and Frequency  Inspection and Oversight

 Placement and Workmanship

• Calibration procedures
• Method to monitor application rates
• Method to ensure proper spread patterns
• Rolling operations
• Sweeping operations
• Method to control traffic

 Documentation – reporting procedures, sample test forms, reports  Non-Conformance and Corrective Action – method to identify and

corrective action

 QC tests submitted to Agency within 24 hours. Include supplier material

certifications

 Materials Sampling and Testing

• Aggregate and Emulsion Testing
• Vendor certifications

 Materials  Personnel

 Surface Preparation

• Surface is clean and dry
• Minor defects corrected

 Construction Procedures

• Equipment calibrated and functioning correctly
• Proper placement procedures followed

 Post Placement

• Check for any issues
• Bleeding, broken aggregate, raveling, joint laps, etc.

 IA is conducted by the Agency  Purpose is to Evaluate for Adequacy

• Personnel skills
• Equipment
• Both agency acceptance testing and contractor QC testing

 IA is NOT for determining if materials or processes

are in spec

 Once we all agree on the format and content for chip

seals…

 Expand to include other treatments

• Micro/Slurry
• Tack Coat/fog seals
• Ultrathin Bonded Wearing Course
• Other

• R. Gary Hicks Phd, P.E.

rghicks40@outlook.com 530-588-4446

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