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Soil Laboratory Testing Particle Size Analysis (Sample Size 5lbs or less) ASTM D 422 or AASHTO T88 Particle Size Analysis (Sample Size more than 5 lbs) ASTM D 422 or AASHTO T88 Hydrometer AnalysisASTM D 422 or AASHTO T88 Moisture Content ASTM C566 or AASHTO T255 Moisture-Density of Soil, Modified Effort (Proctor) ASTM D1557 or AASHTO T180 Moisture-Density of Soil, Standard Effort (Proctor) ASTM D698 or AASHTO T99 California Bearing Ratio ASTM D1556 or AASHTO T193 Specific Gravity of Soil ASTM D854 or AASHTO T100 Plasticity Index of Soil ASTM D4318 or AASHTO T89 & T90 Unconfined Compressive Strength ASTM D4318 or AASHTO T89 & T90 Aggregate Quality Laboratory Testing Los Angeles Abrasion ASTM C131 or AASHTO T96 Los Angeles Abrasion for Coarse Aggregate ASTM C535 Aggregate Durability Index ASTM D3744 or AASHTO T210 Sulfate Soundness ASTM C88 or AASHTO T104 Sand Equivalent ASTM D2419 or AASHTO T176 Fractured Particles ASTM D5821 Flat & Elongated Particles ASTM D4791 Organics Impurities ASTM C40 or AASHTO T21 Specific Gravity of Fine Aggregate ASTM C128 or AASHTO T84 Specific Gravity of Coarse Specific ASTM C127 or AASHTO T85 Clay Lumps and Friable Particle ASTM C142 or AASHTO T112 Uncompacted Void Content ASTM C1252 or AASHTO T 304 Aggregate crushing (Technician time per hour) Asphalt Laboratory Testing Marshall Method (Preparation & Stability and Flow) ASTM D6926 & D6927 or AASHTO T245 Marshall Method (Preparation & Stability and Flow) ASTM D6926 & D6927 or AASHTO T245 Bulk Specific Gravity of Compacted Bituminous Pavement ASTM D2726 or AASHTO T166 Maximum Specific Gravity (Rice) ASTM D2041 or AASHTO T209 Asphalt Content by Quantitative Extraction (Including Mechanical Analysis) ASTM D2172 or AASHTO T164 Asphalt Content by Ignition Oven (Including Mechanical Analysis) ASTM D6307 or AASHTO T308 Asphalt Content by Nuclear Method (Including Mechanical Analysis) ASTM D6307 or AASHTO T308 Asphalt Moisture Content by Oven ASTM D6307 or AASHTO T308 Marshall Mix Design Asphalt Institute MS-2 sixth Addition Concrete and Masonry Laboratory Testing Concrete Compressive Strength ASTM C1231, C511, and C39 Concrete Flexural Strength ASTM C511 and C78 Compressive Strength of Masonry Units ASTM C1314 Compressive Strength of Grout ASTM C1019 Compressive Strength of Hydraulic Cement or Mortar ASTM C109 Concrete Mix Design ACI 318
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Our laboratory provides independent testing of soils, concrete, and asphalt. The laboratory and field testing is performed in accordance with each project’s specified test methods. Our laboratory is accredited by the American Association of State and Highway Transportation Officials (AASHTO). Obtaining and maintaining an AASHTO accreditation requires us to participate in proficiency sample programs, maintain calibration and training records, and successfully complete periodic inspections from the AASHTO Materials Reference Laboratory (AMRL). The material test methods performed at our AASHTO accredited laboratory are validated by the U.S. Army Corps of Engineers.
Services Materials Testing