Moisture Content
ASTM D2216
Gravimetric determination of in-situ and laboratory moisture content for soil classification and compaction control.
Our Services
Soils Laboratory Testing
Our in-house soils laboratory provides fast, accurate testing to support geotechnical reports, construction quality control, and pavement design throughout San Diego County.
Dry Density
ASTM D7263
Measurement of soil dry unit weight from undisturbed samples to evaluate in-place density and compaction.
Modified Proctor Compaction
ASTM D1557
Laboratory compaction testing to establish maximum dry density and optimum moisture content for earthwork specifications.
Atterberg Limits
ASTM D4318
Liquid limit, plastic limit, and plasticity index determination for soil classification and shrink-swell potential assessment.
Sieve Analysis
ASTM D6913
Mechanical grain-size distribution analysis for soil classification per USCS and AASHTO systems.
Hydrometer Analysis
ASTM D7928
Fine-grained particle size distribution for soils passing the No. 200 sieve, used in classification and filter design.
Consolidation
ASTM D2435
One-dimensional consolidation testing to predict settlement magnitude and rate for compressible fine-grained soils.
Swell / Expansion Index
ASTM D4829
Quantification of expansive soil potential to guide foundation design and floor slab recommendations.
Direct Shear
ASTM D3080
Measurement of peak and residual shear strength parameters (c, φ) for slope stability and retaining wall design.
Unconfined Compression
ASTM D2166
Compressive strength testing of cohesive soils for bearing capacity and short-term stability analyses.
Sand Equivalent
ASTM D2419
Evaluation of fine material content in aggregates and base course materials for pavement design.
Corrosion Potential
CTM 643
pH, resistivity, sulfate, and chloride testing to assess soil corrosivity for buried metal and concrete structures.
R-Value
ASTM D2844
Hveem stabilometer testing to determine subgrade and base course strength for flexible pavement design.
Submit Samples for Laboratory Testing
Contact us to arrange sample drop-off or field collection in San Diego County.
Contact Us