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  • Handbook
    • Asphalt Paving Handbook
    • Videos
    • Figures
    • Tables
  • CHECKLISTS
  • ABBREVIATIONS
  • About
1. Introduction
  • 1.1 Handbook Purpose and Organization
  • 1.2 Airfield Paving
  • 1.3 Asphalt Mixtures Defined and Classified
  • 1.4 Workmanship
  • 1.5 Certification and Accreditation Programs
2. Project Organization
  • 2.1 Introduction
  • 2.2 Project Documents
  • 2.3 Preconstruction Conference
  • 2.4 Ongoing Communication
  • 2.5 Ongoing Records
  • 2.6 Safety
3. Asphalt Materials and Mix Design
  • 3.1 Introduction
  • 3.2 Asphalt Binder: Grading Systems And Properties
  • 3.3 Aggregate Characteristics And Properties
  • 3.4 Mixture Volumetrics
  • 3.5 Asphalt Mix Properties
  • 3.6 Additives
  • 3.7 Mix Design Procedures
  • 3.8 Laboratory Versus Plan-produced Mixes
  • 3.9 Summary
4. Mix Production
  • 4.1 Introduction
  • 4.2 Material Storage and Handling
  • 4.3 Aggregate Cold Feed
  • 4.4 Aggregate Drying and Heating
  • 4.5 Batch Plants
  • 4.6 Drum and Continuous Plants
  • 4.7 Emission-Control System
  • 4.8 Temporary Mixture Storage
  • 4.9 Weighing and Loadout
  • 4.10 Safety
  • 4.11 Troubleshooting and Checklists
5. Surface Preparation
  • 5.1 Introduction
  • 5.2 Base Preparation for New Asphalt Pavements
  • 5.3 Asphalt Surface Preparation for Asphalt Overlays
  • 5.4 PCC Surface Preparation For Asphalt Overlays
  • 5.5 Tack Coat
  • 5.6 Summary
6. Mixture Delivery
  • 6.1 Introduction
  • 6.2 Planning
  • 6.3 Truck Types
  • 6.4 Proper Truck Loading
  • 6.5 Hauling Procedures
  • 6.6 Unloading the Mix
  • 6.7 Tracking Quantities
7. Mix Placement
  • 7.1 Introduction
  • 7.2 Tractor Unit
  • 7.3 Screed Unit
  • 7.4 Grade Control
  • 7.5 Layer Thickness
  • 7.6 Establishing Paver Speed
  • 7.7 Related Paving Operations
  • 7.8 Best Practices Checklists
8. Compaction
  • 8.1 Introduction
  • 8.2 Definitions
  • 8.3 Rollers
  • 8.4 Factors Affecting Compaction
  • 8.5 Compaction Variables Under The Operator’s Control
  • 8.6 Determination of Rolling Pattern
  • 8.7 Roller Checklists
9. Joint Construction
  • 9.1 Introduction
  • 9.2 Transverse/Construction Joints
  • 9.3 Longitudinal Joints
  • 9.4 Echelon Paving and Rolling
  • 9.5 Unconventional Longitudinal Joint Methods
10. Segregation
  • 10.1 Introduction
  • 10.2 Recognizing Physical Segregation, Causes, and Solutions
  • 10.3 Four Stages Where Segregation Can Originate
  • 10.4 Thermal Segregation
  • 10.5 Confirming and Quantifying Segregation
11. Quality Assurance
  • 11.1 Introduction
  • 11.2 Definitions
  • 11.3 General Types Of Specifications
  • 11.4 Quality Control Plan
  • 11.5 Sampling Methods
  • 11.6 Quality Control At The Plant
  • 11.7 Quality Control In The Field: Placement And Compaction
  • 11.8 Acceptance
12. Mat Problems
  • 12. Mat Problems
  • 12.1 Surface Waves
  • 12.2 Tearing (Streaks)
  • 12.3 Nonuniform Texture
  • 12.4 Screed Marks
  • 12.5 Screed Responsiveness
  • 12.6 Surface (Auger) Shadows
  • 12.7 Poor Precompaction
  • 12.8 Joint Problems
  • 12.9 Checking
  • 12.10 Shoving And Rutting
  • 12.11 Bleeding And Fat Spots
  • 12.12 Roller Marks
  • 12.13 Poor Mix Compaction
  • 12.14 Other Pavement Problems
Appendix
  • AAPTP Airport Asphalt Videos

1. Introduction

1.5 Certification and Accreditation Programs

Certification and accreditation programs are intended to increase the quality of construction by ensuring project team members and laboratories are knowledgeable about various topics in asphalt materials, sampling, testing, paving, QC, and acceptance. Certification applies to individuals, while accreditation or qualification applies to laboratories. Both are typically tied to an agency’s specific requirements and standards.

There are various certification programs across the United States. Many State agencies have their own certification programs for the various individual roles involved in an asphalt paving project, from sampling and testing technician to inspector to mix designer.

One example of a national certification program that has been adopted for military airfield projects is the Airfield Asphalt Certification Program (AACP). The three certifications available under the AACP are Laboratory Technician, QC Manager, and Inspector. Essentially, the UFGS 32 12 15.13 specification requires a contractor to have at least one individual with each of these certifications on their QC staff, and the individual must actively participate in that respective role during project execution.

AASHTO and ASTM International both offer national laboratory accreditation and proficiency programs. These programs are intended to increase proficiency and accuracy and reduce variability on certain laboratory tests.

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