Our Service

Laboratory Testing

Our Testing & Inspection Laboratory maintains accreditation with WACEL. We are also lab-accredited with the American Association of State Highway and Transportation Officials (AASHTO) and the Cement and Concrete Reference Laboratory (CCRL) and participate in lab inspections administered by the National Institute of Standards and Technology (NIST). 

Our lab staff perform between 100–150 concrete cylinder compression tests each day, while our field staff and engineers inspect millions of square feet of building space each year.

Testing services provided include:

  • Concrete and Aggregates Compressive Strength Testing
    • Our laboratory routinely performs compressive strength tests of cylindrical concrete specimens as molded cylinders and drilled cores. The test method is used to determine compressive strength of cylindrical specimens prepared and cured in accordance with ASTM C31/C31M, C192/C192M, C617/C617M, and C1231/C1231M and ASTM C42/42M and C873/873M.
  • Statistical Analysis of Cylinder Test Results
  • Trial Batches
    • Our laboratory performs testing services to verify the required quantities of each material in various concrete mixes prior to production.  We determine the water-cement ratio that will produce the required slump and compressive strength, determine the air content, and shrinkage data for each proposed mix design.
  • Masonry Grout and Mortar Compressive Strength Testing
    • Our laboratory routinely tests packaged dry, hydraulic cement grout (non-shrink) intended for use under applied loads, where a change in height below the initial placement height is to be avoided in accordance with ASTM C1107.  We also test mortars for composition and for their plastic and hardened properties, either before or during their actual use in construction (ASTM C780).
  • Sprayed on Fire Resistive Materials Density Testing
    • Our laboratory routinely determines the density and cohesion/adhesion or bond strength (tensile) perpendicular to the surface of sprayed fire-resistive material (SFRM) applied to rigid backing.  Fire-resistive materials include sprayed fibrous and cementitious materials in accordance with ASTM E605 and ASTM E736.