Materials and Testing Labs - EST, Inc.

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Darin Metzer, B.S. - Certified Lab Manager
Education: University of Central Oklahoma, B.S. Accounting
ODOT Certified Lab Technician: Asphalt, Aggregates, Concrete, Profiliograph

Mr. Metzer has extensive experience in trouble shooting with asphalt plant production. Mr. Metzer also possesses a familiarity with various computer software packages used for asphalt mix design, and evaluating profilograph results. Mr. Metzer has over 20 years experience in providing quality control and testing services with operational experience with numerous types of excavation & paving equipment. Mr. Metzer has extensive experience with FFA specifications for airport construction.

- ESTs six labs are situated throughout the state in order to better serve our clients needs at various job sites. 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 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 personnel have provided materials testing training for over 5 years 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 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 MATERIALS TESTING CAPABILITIES
Laboratory Tests	Asphalt Mix Design
Aggregate Durability Index Asphalt Content by 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 Expansion Index Flat/Elongated (aggregate) Grain- Size Distribution Havard Miniature Hveem Molds & Stability Hydrometer Insoluble Residue LA Abrasion Marshall Molds Maximum Theoretical Spec Gravity Moisture/Density Relationship Organic Content (soil) Organic Impurities (aggregate) Permeability (soil, asphalt) PH Soil Rapid Freeze/Thaw (soil/aggregate) Resistivity Retained Strength Sand Equivalent Sieve Analysis Soil Classification (LL,PI, -200) Soundness of aggregate Specific Gravity (soil/aggregate) Superpave Molds Swell Un-compacted Void Content Unconfined Compressive Strength Unit Weight (aggregate)	Conventional (Hveem) Marshall Superpave
	Concrete Mix Design
	Class A Class AA Control Low Strength Material (CLSM) High Early Strength (HES) ohdl 52 optimizer
	Soil Stabilization
	Cement Kiln Dust FlyAsh Lime Portland Cement
	Field Tests
	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 Nuclear Density aggregate Nuclear Density asphalt Rolling Pattern Slump Soil Sampling

To contact EST Materials Testing Division - Click Here or Call 1-405-307-8378d