Concrete & Geophysical
Non-Destructive Testing
Insight for Infrastructure.
NDT Corporation provides non-destructive and geophysical testing services to evaluate the condition, integrity, and performance of concrete and subsurface infrastructure. Our testing delivers quantitative data that helps engineers and owners make informed decisions related to condition assessment, repair design, rehabilitation strategies, and asset management.
Our services provide the data engineers need to identify common structural issues, without damaging the structure.
As-Built Verification
Slab, wall, column, and beam dimensions
Mapping reinforcement (tendons and rebar) location, size, spacing and cover depth
Nondestructive evaluation of in-situ concrete compressive strength
Identifying unknown foundations, dimensions and pile lengths
Corrosion and Durability
Chloride profile and carbonation depth
Concrete cover over reinforcing
Corrosion potential and corrosion rate
Loss of PCCP tension
Verification of epoxy injection of cracks
Steel thickness gauging and anchor bolt ultrasonic testing
Subsurface Defects & Forensic Imaging
Concrete delamination and microcracking
Backside concrete spalling
Honeycombing and voids in concrete
Voids under slab or behind walls
Post-tension tendon voids location and size, identification of soft grout
Geophysical Evaluation
Confirming foundation depth and pile lengths
Soil property profiling
Bedrock profiling
Locating underground utilities or geological voids
Projects
Agriculture
Structures We Test
Bridges
Parking
Buildings
Pipes and Tanks
Marine
Power & Dam
Experience You Can Rely On
Founded in 1994, NDT Corporation has built a reputation for delivering reliable data, practical insight, and responsive service on technically complex projects. Our team combines decades of field experience with advanced testing technologies to produce results that are clear, defensible, and actionable for engineers and owners.