LABORATORY TESTING

ALLWEST can provide cost effective quality control/quality assurance services to meet our clients’ needs. We are proud of our laboratory staff’s ability to produce accurate, representative test results in a timely manner. ALLWEST maintains national accreditation in our Spokane Valley, Washington office from the American Association for Laboratory Accreditation (A2LA), and in our Lewiston, Idaho office through AASHTO Materials Reference Laboratory (AMRL) for a wide variety of construction materials testing procedures. ALLWEST also maintains accreditations from the Washington Association of Building Officials (WABO), Idaho Transportation Department (ITD) and Washington Department of Transportation (WSDOT). In addition, ALLWEST has an up-to-date laboratory trailer for testing at remote projects. Our trailer is certified by ITD and is set-up for testing during crusher control, soils, and asphalt.

The following tests are performed in-house to ensure accurate results. ALLWEST also has long standing relationships with reliable laboratories for specialized testing services not listed.

AGGREGATES Aggregate pH Clay Lumps & Friable Particles Cleanliness Value Crusher Control Ethylene Glycol DMSO Deleterious Substance Dry Rodded Weight Durability Index (Coarse & Fine) Fine Angularity Flat & Elongated Particles Fracture Face Idaho Degradation Lightweight Particles L.A. Abrasion Organic Impurities Sand Equivalent Sieve Analysis Specific Gravity (Coarse & Fine) Spring Loaded Proctor Sulphate Soundness (Coarse & Fine) Source Investigation Unit Weight Washington Degradation

SOILS Atterberg Limits California Bearing Ratio (CBR) Chlorides & Sulfates Consolidation Testing Grain Size Analysis Liquid Limits/Plastic Limit Organic Content Moisture Density Curve (Proctor) Resistivity Specific Gravity Unit Weight/Moisture Content Unconfined Compression Hydrometer Analysis ASPHALT Core Density Extraction with Gradation Extraction (Oil Content) Reflux Extraction with Gradation Theoretical Maximum Density Gyratory/Volumetrics Superpave Testing

CONCRETE Compressive Strength Mix Design Verifications Unit Weight/Yield MASONRY Absorption Block Shrinkage Compressive Strength: Mortar, Grout, Brick & Block