105 Tradesman Drive Suite B, Hutto, Texas 78634
Soil Shear Strength
Hydraulic Conductivity & Permeability
Hydraulic Conductivity & Permeability
- CU R-bar Triaxial Compression w/ Pore Pressure Meas. (ASTM D4767, Tex-131-E) for 3-pt or Multi-Stage on Single Specimen
- CD Triaxial Compression w/ Volume Change Meas. (ASTM D7181)
- UU Triaxial Compression (ASTM D2850, AASHTO T 296, & Tex-118-E)
- Direct Shear Test (ASTM D3080 & AASHTO T 236) add’l Post-Peak Strength Parameters
- Stress History and Normalized Soil Engineering Properties (SHANSEP) Strength Model
- CU or CD Triaxial Extension Test
- Applied Pressure up to 450 psi
Hydraulic Conductivity & Permeability
Hydraulic Conductivity & Permeability
Hydraulic Conductivity & Permeability
- Constant Head Permeability Test w/ Rigid Wall (ASTM D2434 & AASHTO T 215)
- Hydraulic Conductivity Test w/ Flexible Wall (ASTM D5084 & USACE Method) for Shelby tube or Remolded Specimen w/ Quick & Accurate Turnaround
- Contaminated Fluids (Leachate) & Long-Term Studies for Landfill CQA
- Evaluation of Hydraulic Properties of GCL (ASTM D6766)
- Atypical Materials (i.e. Gypsum, Fly Ash, Concrete, & Others)
- Anisotropic Consolidation w/ Measurement of Permeability
Consolidation/ Swell/ Collapse
Hydraulic Conductivity & Permeability
Consolidation/ Swell/ Collapse
- 1-D Consolidation, Incremental Loading (ASTM D2435 & AASHTO T 216) Using Fully-Automated & Dead-Weight Frames
- Constant Rate-of-Strain (CRS) Consolidation (ASTM D4186)
- 1-D Swell or Collapse (ASTM D4546, Method A, B, & C)
- 1-D Swell Modified Absorption with Custom Loads & Research Study
- Up to 256 ksf (128 tsf) Loading Capacity
- Secondary Compression Index, C alpha
- Expansion Index of Soils (ASTM D4829)
Intact Rock Mechanics
Compaction Characteristics
Consolidation/ Swell/ Collapse
- Splitting Tensile Strength (Indirect, Brazilian Disk) (ASTM D3967)
- Slake Durability of Shale & Weak Rocks (ASTM D4644)
- Direct Shear Strength Test of Rock Specimen (ASTM D5607)
- Point Load Strength Index of Rock (ASTM D5731)
- Compressive Strength of Intact Rock Cores (ASTM D7012)
- CERCHAR Abrasivity Index (ASTM D7625)
- Punch indentation/ Penetration Test (EMI Method)
- Petrographic Examination or Clay Minerals Analysis by X-ray Powder Diffraction (XRD)
Compaction Characteristics
Compaction Characteristics
Compaction Characteristics
- Resilient Modulus (Mr) of Soils & Aggregate for Untreated Subgrade Soils & Untreated Base/Subbase Materials (AASHTO T 307-99)
- California Bearing Ratio (CBR) (ASTM D1883 & AASHTO T 193)
- Resistance R-Value Test (ASTM D2844, AASHTO T 190)
- Standard Proctor (ASTM D698, AASHTO T 99)
- Modified Proctor (ASTM D1557, AASHTO T 180)
- Moisture-Density Relationship Test (Tex-113-E & Tex-114-E)
- Correction for Oversize Particles (ASTM D4718, C127)
Soil-Cement & Soil-Lime
Compaction Characteristics
Compaction Characteristics
- Moisture-Density Relations of Soil-Cement (ASTM D558 & AASHTO T 134)
- Wetting & Drying Compacted Soil-Cement, 12 Cycles (ASTM D559)
- Compressive Strength Test of Soil-Cement (ASTM D1633/ D1662)
- Soil-Cement Testing (Tex-120-E, Part I & II)
- Soil-Lime Testing (Tex-121-E, Part I & II) w/ TxDOT Proctor & Unconfined Compression Tests
- Soil-Lime Proportion by pH Test (ASTM D6276 & Tex-121-E, Part III)
- Admixing Lime to Reduce PI of Soils (Tex-112-E)
Index Properties & Dispersion
Thermal Resistivity, Corrosion, & Chemistry
Index Properties & Dispersion
- Density, Unit Weight w/ Water Content (ASTM D2937/D7263)
- Atterberg Limits Test (ASTM D4318, AASHTO T 89/ T 90, Tex-104-E/105-E/106-E)
- Specific Gravity (ASTM D854/C127/C128, AASHTO T 100, Tex-201-F)
- Organic Content (ASTM D2974)
- Grain-Size/ Sieve Analysis (ASTM D422, D6913, C136, Tex-110-E)
- Hydrometer Analysis (ASTM D422, D7928, Tex-110-E, Part II)
- Clay Dispersive w/ Double Hydrometer (ASTM D4221)
- Crumb Test (ASTM D6572)
- Pinhole Dispersion (ASTM D4647)
Aggregate Properties
Thermal Resistivity, Corrosion, & Chemistry
Index Properties & Dispersion
- Carbonate Content (ASTM D3042, or Modified w/ J&L Test Method) for Landfill CQA
- Rapid Carbonate Content (ASTM D4373)
- Soundness of Aggregates, Use of Sodium Sulfate or Magnesium Sulfate (ASTM C88, AASHTO T 104, Tex-411-E)
- LA (Los Angeles) Abrasion (ASTM C131/C535, AASHTO T 96, Tex-410-E)
- Wet Ball Mill Method (Tex-116-E)
- Aggregate Durability Index (AASHTO T 210)
- Clay Lumps/Friable Particles in Aggregates (ASTM C142)
Thermal Resistivity, Corrosion, & Chemistry
Thermal Resistivity, Corrosion, & Chemistry
Thermal Resistivity, Corrosion, & Chemistry
- Thermal Resistivity (ASTM D5334) on Soil, Rock, & Flowable Fill w/ Dry-Out Curve for Lab & Field-Testing Pits Full Study
- pH of Soil for Use in Corrosion (ASTM D4972/G51, Tex-128-E)
- Minimum Soil Resistivity (ASTM G57, G187, & Tex-129-E)
- Sulfate Content (ASTM C1580/D516/D4327, Tex-145-E/620-J, EPA 300.0)
- Chloride Content (ASTM D512/D4327, Tex-620-J, EPA 300.0, AASHTO T 291)
- Redox potential (aka. Oxidation-Reduction) (ASTM G200, D1498, & SM2580B)
- Walkley-Black, 1934 (SM 2320B) for Fraction of Organic Carbon- FOC