Nondestructive Testing

Nondestructive Testing Main

Non-Destructive Testing Services

This will not hurt a bit.

We at CTLGroup take justifiable pride in our ability to tackle the most difficult nondestructive evaluation (NDE) projects. Our NDE team assists owners, designers and contractors throughout the U.S. to help with their problems.

NDE is a relatively inexpensive way to determine the extent of damage or defective construction. Its use in civil engineering is analogous to the use of indirect sounding methods in medical examinations. Recent advances in testing techniques, equipment and on-site computer software have brought reliability, and industry-wide acceptance, to this discipline.

Non-destructive testing services (NDT) can provide detailed information not obtainable from visual inspection or invasive sampling alone. This information is particularly beneficial in evaluating large concrete structures such as dams, bridges and tall structures. The NDT data collected can be stored as a baseline for future studies, a useful resource in developing and carrying out maintenance programs.

CTLGroup is a leader in designing and refining sophisticated NDE methods such as Impulse Response, Impact-Echo and Impulse Radar. Our engineers have tested and proved these developments on sites throughout the world, and thus have stayed in the vanguard of the nondestructive evaluation industry.

The success of any NDT survey depends on tailoring the approach to the problem at hand. A judicious mix of visual inspection, NDE and minimal intrusive material sampling typically costs less than a more traditional investigative approach and results in a clearer definition of the problem. At CTLGroup, we provide the tools, nondestructive lab services, and trained professionals to meet both these goals.

Nondestructive Testing


Corrosion Assessment

Corrosion of reinforcing steel is the most common cause of deterioration in concrete structures, lea(...) Learn More

Ground-Penetrating Radar Services

CTLGroup’s ground-penetrating radar services evaluate concrete structures and locate buried items su(...) Learn More

Impact-echo Testing

The impact-echo technique is one of several nondestructive test methods that CTLGroup specialists us(...) Learn More

Other Nondestructive Test Methods

Testing to see if it vibrates, resonates or dissipates. CTLGroup has experience with other nondestru(...) Learn More

Ultrasonic Pulse Velocity (UPV)

CTLGroup's NDT engineers have used measurement of concrete's pulse velocity since 1975; it was the f(...) Learn More

Ultrasonic Shear-wave Tomography or ‘MIRA’

The Ultrasonic Shear-wave Tomography (UST) technique (commonly known as “MIRA”) is a low frequency ((...) Learn More