Skip to content

Lab Services

Lab Services

Aztech’s laboratory focuses on accurate & quality materials testing. It is accredited by the American Association of Highway and Transportation Officials (AASHTO) for soil, aggregates, concrete, & asphalt.

Consistent and constant review of laboratory procedures and test results is foremost. To assure quality, our materials testing laboratory participates in external audits administered by the Cement and Concrete Reference Laboratory (CCRL) and AASHTO.

Our Field Technicians coordinate closely with our Laboratory Technicians in order to record and log every sample so that meticulous sample management, storage, and testing requirements are provided for every project.

Aztech’s experienced staff is knowledgeable and qualified to perform tests according to the required methods and procedures.

Soil Testing

Plasticity Index
Specific Gravity of Soils, Fine Aggregate, and Coarse Aggregate
Sand Equivalent
Proctor- Methods A, B, & C
Coarse and Fine Sieve Analysis
LA Abrasion
Soundness of Aggregate using Sodium Sulfate
Uncompacted Void Content in Fine Aggregate
Dry Rodded Unit Weight of Aggregate
Organic Impurities in Fine Aggregate
Clay Lumps and Friable Particles in Aggregate
Cleanness Value of Aggregate
Flat and Elongated Particles
Fractured Faces
Methylene Blue

Asphalt Testing

Theoretical Maximum Specific Gravity (Rice)
Marshall Stability, Flow, & Unit Weight
Quantitative Extraction with Sieve Analysis
Bulk Specific Gravity of Compacted Asphalt
Ignition and Sieve Analysis
Marshall Mix Design with TSR & Rice
Open Grade Mix Design
Filterless Centrifuge
Roto-vapor Recovery
Pressure-Aging Vessel
Bending Beam Rheometer

Concrete Testing

Compression Tests on:
Concrete Grout
Mortar Cylinders
Masonry Prisms
Compression Tests and Absorption of Masonry Units
Flexural Strength of Concrete Beam- 3rd Point Load
Flexural Strength of Concrete Beam- Center Point Load

Steel Testing

Tensile strength and elongation.

Laboratory test results and computations are reviewed systematically by Aztech staff and by internal checks of computer software. Finally, the Laboratory Manager performs a meticulous review of each test result report prior to Client delivery.

Our state-of-the-art laboratory contains new, calibrated equipment to provide accurate test results. Each piece of equipment has a unique identification number and calibration schedule maintained by the Laboratory Manager for precise, repeatable testing.

Each sample brought to our laboratory is logged in and given a unique identification number for sample management purposes. The sample log describes the project name, project number, name of the supplier, material source, material type, location sampled, date sampled, sampler’s name, date received, test(s) required, and the condition of the sample.