Geotechnical Testing
Geotechnical Testing
Design and construction of cost-effective functional structures require a thorough understanding of local soil, rock and groundwater conditions. TERRA has the capability and expertise to provide a wide range of Geotechnical testing services to assess the risks associated with subsurface investigation and to support all phases of a project – from preliminary design through the completion of the construction.
- Grain Size Distribution (ASTM D 422)
- Moisture/Density Relation (ASTM D 698/1557)
- Specific Gravity (ASTM D 854)
- Materials Finer than #200 Sieve (ASTM D 1140)
- Plate Bearing (ASTM D 1196)
- California Bearing Ratio (ASTM D 1883)
- Unconfined Compression – Soil (ASTM D 2166)
- Permeability – Constant Head (ASTM D 2434)
- Consolidation (ASTM D 2435)
- Classification of Soils (ASTM D 2487)
- Triaxial (ASTM D 2850)
- Unconfined Compression – Rock (ASTM D 2938)
- Direct Shear (ASTM D 3080)
- Atterberg Limits (ASTM D 4318)
- In-Place California Bearing Ratio (ASTM D 4429)
- Permeability – Falling Head (ASTM D 5084)