Materials Testing    

EST is staffed with qualified and certified laboratory technicians. These technicians are also equipped and experienced to provide precise calibration and maintenance on a wide range of testing equipment. EST maintains state-of-the-art equipment at several locations throughout Oklahoma. EST also provides high quality, accurate and reliable analysis, as well as research and development for private and public use.

EST has furnished materials testing training for over six years now at the Oklahoma Department of Transportation Materials Lab. EST is confident in our current technicians and Lab Managers to properly administer any test while conforming to AASHTO, OHD-L and ASTM standards. EST’s labs are AMRL and CCRL certified for Hot Mix Asphalt, Aggregate, Soil and Portland Cement Concrete. EST’s six labs are situated throughout the state in order to better serve our clients needs at various jobsites. EST personnel will be on hand to perform all required on-site testing procedures and will collect samples on-site to perform testing in the labs. EST prides itself in a quick turn around of test reports and will provide stamped and signed hard and digital copies of all reports to our clients.

EST provides full-service material testing, geotechnical investigations and support services to our clients. Our mission to our customers is to exceed their expectations with our full range of material testing services. EST's laboratories are outfitted with all the equipment needed to provide the needed testing services on any project. Our certified laboratories provide accurate, reliable results. For additional information contact Nathan.Peil@estinc.net

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SERVICES:

Asphalt Mix Design

• Conventional (Hveem)
• Marshall
• Superpave

Concrete Mix Design

• Class A
• Class AA
• Control Low - Strength Material (CLSM)
• High Early Strength (HES)

Field Test

• Aggregate Sampling
• Air Entrainment Content
• Asphalt Sampling
• Core Sampling (asphalt, concrete)
• Inspection
• Making Beams
• Making Cylinders
• Making Grout Cubes
• Making Mortar Cylinders
• Nuclear Density (soil, aggregate, asphalt)
• Rolling Pattern
• Slump
• Soil Sampling
• Unit Weight

Laboratory Tests

• Aggregate Durability Index
• Asphalt Content by the Ignition Oven
• Beam Flexural Strength
• California Bearing Ratio (CBR)
• Chunk Density
• Clay Lumps and Friable Particles
• Concrete Compressive Strength
• Consolidometer
• Core Density
• Drain Down Characteristics of Un-compacted Asphalt Mixtures
• Expansion Index
• Flat/ Elongated (aggregate)
• Grain- Size Distribution
• Havard Miniature
• Hveem Molds
• Hveem Stability
• Hydrometer
• Insoluble Residue
• LA Abrasion
• Marshall Molds
• Maximum Theoretical Specific Gravity
• Moisture/ Density Relationship
• Organic Content (soil)
• Organic Impurities (aggregate)
• Permeability (soil, asphalt)
• PH
• Rapid Freeze/ Thaw (soil and aggregate)
• Resistivity
• Retained Strength
• Sand Equivalent
• Sieve Analysis
• Soil Classification (LL,PI, -200)
• Soundness of aggregate
• Specific Gravity (soil and aggregate)
• Superpave Molds
• Swell
• Un-compacted Void Content (fine aggregate)
• Unconfined Compressive Strength (soil and rock cores)
• Unit Weight (aggregate)

Soil Stabilization

• Cement Kiln Dust
• FlyAsh
• Lime
• Portland Cement