Scope of Services

GEOTECHNICAL ENGINEERING

Geotechnical Engineering Services Include:
  • Earthquake Engineering
  • Earth Slopes and Embankments
  • Erosion Control
  • Excavation Characteristics
  • Flood Control Structures
  • Foundation Engineering
  • Geologic Hazard Evaluations
  • Ground Improvement
  • Pavement Engineering
  • Retaining and Buried Structures
  • Site Investigations
  • Slope Stability
  • Soil Improvement


PAVEMENT ENGINEERING

Design methods used include:
  • Asphalt Institute
  • Portland Cement Association
  • Maricopa Association of Governments (MAG)
  • Arizona Department of Transportation (ADOT)
  • Federal Highway Administration
  • Federal Aviation Administration


FIELD-TESTING & INSPECTION

Equipment Used Include:
  • Schmidt Hammer
  • Ultrasonic Test Equipment
  • Magnetic Particle Test Equipment
  • High-Range Torque Wrenches
  • R Meter (Pachometers)
  • Windsor Probe
  • Pull-Load Testing Devices
  • Concrete Vapor Transmission Test Kits
  • Thin Lift Nuclear Asphalt Gauges
  • Coring Machines
  • Floor Flatness Testing Devices
GEOTECHNICAL TESTING

  • Field Density Determination
  • Density of Undisturbed Samples
  • Atterberg Limits
  • Moisture-Density Relationship
  • Expansion/ Consolidation
  • Permeability Testing
  • Percolation Testing
  • Corrosivity Testing
  • Direct Shear Testing


AGGREGATE TESTING

  • Liquid Limit & Plasticity Index
  • Percent Passing No. 200 Sieve Screen
  • Sieve Analysis
  • Specific Gravity & Absorption
  • Unit Weight of Aggregate
  • Fractured Face Count
  • Sand Equivalent


CONCRETE/ MASONRY TESTING

  • Compressive Strength & Flexural Strength
  • Mix Design/ Verification
  • Slump, Air Content, Unit Weight, Temperature, Yield
  • Time of Set
  • Pre & Post-Tensioning Inspection
  • Coring


ASPHALT TESTING

  • Asphaltic Density Tests (nuclear)
  • Density/ Thickness of Asphalt
  • Extraction & Gradation
  • Index of Retained Strength (Tensile Strength Ratio)
  • Marshall Density, Stability & Flow
  • Asphalt Mix Design
  • Maximum Theoretical Specific Gravity
  • Coring