U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration



Materials Notebook

Chapter 2 - Soils

May 1997

List of appropriate soils tests

  1. Soils Evaluation
    1. Investigation
      • AASHTO R-13 Conducting Geotechnical Subsurface Investigations
      • AASHTO T-87 Dry Preparation of Disturbed Soil and Soil Aggregate Samples for Test
      • AASHTO T-146 Wet Preparation of Disturbed Soil Samples for Test
      • AASHTO T-203 Soil Investigation and Sampling by Auger Borings
      • AASHTO T-206 Penetration Test and Split-Barrel Sampling of Soils
      • AASHTO T-207 Thin-Walled Tube Sampling of Soils
      • AASHTO T-223 Field Vane Shear Test in Cohesive Soil
      • AASHTO T-225 Diamond Core Drilling for Site Investigation
      • AASHTO T-251 Soil Investigation and Sampling by Hollow-Stem Auger Borings
    2. Characteristics
      • AASHTO T-88 Particle Size Analysis of Soils
      • AASHTO T-89 Determining the Liquid Limit of Soils
      • AASHTO T-90 Determining the Plastic Limit and Plasticity Index of Soils
      • AASHTO T-100 Specific Gravity of Soils
    3. Classification
      • AASHTO M-145 Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
      • ASTM D2487 The Unified Soil Classification System
    4. Strength Tests
      • AASHTO T-190 Resistance R-Value and Expansion Pressure of Compacted Soils
      • AASHTO T-193 The California Bearing Ratio
      • AASHTO T-208 Unconfined Compressive Strength of Cohesive Soil
      • AASHTO T-216 One-Dimensional Consolidation Properties of Soils
      • AASHTO T-236 Direct Shear Tests of Soils Under Consolidation Drain Conditions
      • AASHTO T-294 Resilient Modulus of Unbound Granular Base/Subbase Materials and Subgrade Soils -- SHRP Protocol P46
      • AASHTO T-297 Consolidated-Undrained Triaxial Compression Test on Cohesive Soils
  2. Field Control
    1. Optimum Density and Moisture
      • AASHTO T-99 The Moisture-Density Relations of Soils Using a (2.5 kg) 5.5 lb Rammer and a (305 mm) 12 in. Drop {Proctor}
      • AASHTO T-180 Moisture-Density Relations of Soils Using a (4.55-kg) 10-lb Rammer and an (457-mm) 18-in. Drop {Modified Proctor}
      • AASHTO T-224 Correction for Coarse Particles in the Soil Compaction Test
      • AASHTO T-272 Family of Curves -- One-Point Method
Updated: 06/27/2017
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000