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American Association of State and Highway Transportation Officials (AASHTO)

We are accredited by AASHTO under AASHTO R18; Standard Recommended Practice for Establishing and Implementing a Quality System for Construction Materials Testing Laboratories. Our Lab Certification Identification Number is 280.

We are accredited for testing of the following materials and ASTM test methods:

Aggregate

  • C40 Standard Test Method for Organic Impurities in Fine Aggregates for Concrete
  • C117 Materials Finer than 75μ (No. 200) Sieve by Washing
  • C127 Specific Gravity and Absorption
  • C128 Specific Gravity and Absorption
  • C136 Sieve Analysis
  • C566 Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying
  • C702 Standard Practice for Reducing Samples of Aggregate to Testing Size
  • C1077 Standard Practice for Laboratories Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Laboratory Evaluation

Portland Cement Concrete

  • C31 Standard Practice for Making and Curing Concrete Test Specimens in the Field
  • C39 Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
  • C138 Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
  • C143 Slump
  • C172 Standard Practice for Sampling Freshly Mixed Concrete
  • C173 Air Content (By Volume)
  • C231 Air Content (By Pressure)
  • C617 Standard Practice for Capping Cylindrical Concrete Specimens
  • C1064 Temperature of Freshly Mixed Concrete
  • C1077 Standard Practice for Laboratories Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Laboratory Evaluation

Soil

  • D 421-02 Dry Preparation for Particle Size Distribution & Soil Constant
  • D 422-63 Particle Size Analysis
  • D 698-00 Compaction Characteristics by Standard Effort
  • D 854-02 Specific Gravity of Soils
  • D 1140-00 Materials Finer than 75um (No.200) Sieve
  • D 1156-00 Density and Unit Weight by Sand Cone
  • D 1557-02 Compaction Characteristics by Modified Effort
  • D 1883-99 CA Bearing Ratio (CBR)
  • D 2166-00 Unconfined Compressive Strength
  • D 2216-98 Water Content
  • D 2217-85 Wet Preparation for Particle Size Analysis
  • D 2419-02 Sand Equivalent Value of Soil and Fine Aggregate
  • D2435-03 One-Dimensional Consolidation Properties
  • D 2487-00 Classification of Soils
  • D 2488-00 Description and Identification of Soils (Visual-Manual Procedure)
  • D 3080-03 Direct Shear Test in Consolidated Drained Conditions
  • D 4318-00 Liquid & Plastic Limit and Plasticity Index

Asphalt Concrete:

  • D1560 Hveem Method
  • D1561 California Kneading Compactor
  • D6307 Asphalt Content of Hot Mix Asphalt (HMA) by the Ignition Method

Metal:

  • E 18 Rockwell Hardness
  • M 111 Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products - Adhesion of Coating
  • M 270 Tension Test