Business Center

2017 WAQTC Manual

Transportation Technician Qualification Program
Embankment & Base In-Place Density Participant Workbook

WAQTC Manual Field Operation Procedures

  1. AASHTO T 255 (2016 Revision Published October 2016) Total Evaporable Moisture Content of Aggregate by Drying
  2. AASHTO T 265 (2016 Revision Published October 2016) Laboratory Determination of Moisture Content of Soils
  3. AASHTO T 99 (2016 Revision Published October 2016) Moisture-Density Relations of Soils Using a 2.5-kg (5.5-lb) Rammer and 305-mm (12-in.) Drop;
  4. AASHTO T 180 (2016 Revision Published October 2016) Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and 457-mm (18-in.) Drop
  5. AASHTO R 75 (2016 Revision Published October 2016) Developing a Family of Curves
  6. AASHTO 272 (2016 Revision Published October 2016) One-Point Method for Determining Maximum Dry Density and Optimum Moisture
  7. AASHTO T 85 (2016 Revision Published October 2016) Specific Gravity and Absorption of Coarse Aggregate
  8. AASHTO T 310 (2016 Revision Published October 2016) In-Place Density and Moisture Content of Soil and Soil-Aggregate by the Nuclear Methods (Shallow Depth)

Colorado Department of Transportation Soils, Excavation, and Embankment Inspection (November 2016 Revision)