GTS provides laboratory and field testing of soils, concrete and masonry, asphalt, fire resistant materials, structural steel, CMU walls, and more. We can also provide construction observation.
See below for a detailed list of our available testing services, or give us a call for a consultation on your specific project.
Material Testing Services
Soil and Aggregate Testing
- Standard and modified proctors (ASTM D698, ASTM D1557, AASHTO T99, AASHTO T180)
- Atterberg limits (ASTM D4318, AASHTO T89, AASHTO T90)
- Sieve analysis (ASTM D6913, AASHTO T27)
- Hydrometer (ASTM D422, AASHTO T88)
- Specific gravity and absorption (AASHTO T100)
- California bearing ratio (ASTM D1883, AASHTO T193)
- Unconfined compressive strength (ASTM D 2166, AASHTO T208)
- Triaxial testing (ASTM D2850, ASTM D 4767, ASTM WK 3821, AASHTO T296, AASHTO T297(
- Soil consolidation (ASTM D2435, AASHTO T216)
- Flex wall permeability (ASMT D 2434, AASHTO T 215)
- Sand equivalency (ASTM D 2419, AASHTO T176)
- Aggregate soundness testing (ASTM C88, AASHTO T96)
- LA abrasion (ASTM C131, AASHTO T96)
- Deleterious material determination
- One-dimensional swell test (ASTM D 4546, AASHTO T216)
- Soil stabilization mix designs
- Compressive strength of cylinders, cubes, prisms, and cores (ASTM C 39, ASTM C 42, ASTM C 1019, ASTM C 109, ASTM C140)
- Bearing capacity observation
- Proofroll observation
- Retaining wall backfill observation
- Soil nail installation observation
- Micropile installation observation
- Undercut recommendations
- Soil or aggregate density field testing (ASTM D6938, AASHTO T310)
Sprayed on Fire Resistant Material Testing
- Field thickness and density testing of SFRM (ASTM E605)
- Field adhesion testing of SFRM (ASTM E 736)
- Laboratory SRFM density testing (ASTM E605)
Structural Steel and Welding Inspection
- In-house certified welding inspector
- Weld procedure and welder performance qualification and certification
- Field and fabrication shop welding inspections
- Pipe welding inspections
- Visual, liquid penetrant, ultrasonic, and magnetic particle testing of welds
- Skidmore Wilhelm Bolt Tension Calibrator – for calibrating fasteners and tools on the job site
- Torque Multiplier used with high strength bolt testing
- Bolt Pull out strength testing
- Drilled and epoxied reinforcing bar pull out strength
- Surface tension pull strength testing
Misc NDT Testing
- NDE 360 Platform from Olson Instruments
- Impact echo
- Sonic echo impulse response (SE/IR)
- Ultrasonic pulse velocity (UPV)
Flir Infrared Camera
- Structural as-built condition of CMU block walls
- Heat loss of buildings
- Moisture and restoration
- Energy auditing
Borescope Inspection Camera
- Downhole camera for use in tight spaces
Laboratory Asphalt Testing
- Bulk Specific gravity (AASHTO T 166)
- Thickness
- Aggregate gradation (ASTM D6913, AASHTO T27)
- Extraction and gradation of core samples (ASTM D5444, AASHTO T30)
Field Asphalt Testing
- Rolling pattern determination during placement
- Coring and cutting samples for testing
Laboratory Concrete and Masonry Testing
- Compressive strength of cylinders, cubes, prisms and cores (ASTM C 39, ASTM C 42, ASTM C 1019, ASTM C 109, ASTM C140)
- Flexural Strength of Beams (ASTM C 78)
- Petrographic Analysis of concrete samples (ASTM C 457)
- Compressive strength testing of lightweight insulating concrete (ASTM C 495, ASTM C 513)
Field Concrete and Masonry Testing
- On site sampling of freshly mixed concrete (ASTM C31, C143, C172, C231, C1064, AASHTO T23, T119, T141, T152, T309)
- Unit Weight of Concrete (ASTM C138, AASHTO T121)
- On site sampling of grout (ASTM C1019, C143, C1064, AASHTO T23, T119, T309)
- On site sampling of mortar (ASTM C1714)
- Schmidt Hammer (ASTM C8805)
- Concrete maturity testing
- Mass concrete temperature testing
- Floor Flatness Determination (ASTM E 1155)
- Vapor Emission Testing (ASTM F1869)
- Relative humidity In-situ Probe Testing (ASTM F2170)
- Concrete Ph testing
- Concrete mortar time of setting (ASTM C403)
- Crack monitoring
CMU Walls
- Mortar cube strength testing
- Field observation of block walls
- Grout testing
Construction Observation
- Straight shaft drilled piers
- Geopier foundations
- Soil bearing capacity
- Reinforcing bars for foundation and structural elements
- Driven piles
- Soil-nail soil reinforcement
- Micropile foundations
- Post tension concrete systems
- Fire resistant systems (SFRM)
Ground Penetrating Radar
- Utility locating
- Void or cavern locating
- Rebar locating
Positector Surface Coating Thickness Measurement
- For intumescent paint