Geotechnical Soils Testing & Inspections

Structural integrity is only as dependable as the materials used in the process.  TTL's team of professionals conduct construction quality control testing of soils with deep foundation inspections including caisson, auger cast pile and driver pile and soil testing that includes soil bearing for shallow foundations, monitoring structural fill, soil/aggregate compaction and relative density testing and inspections.

Soil, an integral part of geotechnical engineering services includes the following types of tests.

• Samples
• Laboratory Moisture Density Relationships (Proctors-Standard and Modified)
• Unconfined Compressive Strength Tests on Soil Boring Samples (rock & soil)
• Specific Gravity Determination
• Moisture Content Classification (Gradation, Liquid and Plastic Limits)
• Visual Classification
• Loss by Wash
• In-Place Field Density Tests (Percent Compaction by Nuclear Density Meter, Sand Cone & Rubber Balloon)
• Hand and Housel Penetrometer Tests
• Soil Backfill Control
• Bearing Capacity
• Grain Size Analysis/Atterberg Limits
• One-dimensional Consolidation
• California Bearing Ratio (CBR)
• Triaxial Shear Tests (UU, CU, CD)
• Direct shear
• Flexible Wall & Constant Head Permeability
• Resistivity
• Percentage of Organics Determination (loss on ignition, LOI)
• Determination of Optimum Percentage of Cement for Cement Stabilization

All tests are performed in strict accordance with recognized standards.