Non-destructive testing of concrete, reinforcement and piles, carried out with Nattest Lab.
Non-destructive testing (NDT) inspects concrete, reinforcement and piles without breaking them out: rebound hammer and ultrasonic pulse velocity for concrete quality, cover meter and GPR scanning for reinforcement, half-cell potential for corrosion, and pile integrity tests for pile shafts.
Acceptance checks on new works, condition surveys of existing buildings and bridges, before alteration or change of use, and investigation after fire, cracking or other damage.
Your site, the structure and what the design needs to know.
Test locations, methods and the reporting you need.
Testing, drilling and sampling on site by our field team.
Logs, plots and test results for your engineer.
NDT covers large areas quickly. Where results need confirming, a few cores or samples are taken.
Carbonation testing assesses the depth of carbonation in concrete. Results support assessment of reinforcemen…
Cover measurement surveys locate reinforcement and assess the depth of concrete cover. Results support compar…
Surface electrical resistivity testing of concrete to support durability and corrosion-risk assessment. Resul…
Ground-penetrating radar surveys to investigate embedded objects and subsurface features in concrete, soil or…
Half-cell potential testing assesses the likelihood of active corrosion in reinforcement. It does not directl…
Multichannel ground-penetrating radar surveys to investigate buried utilities and subsurface features. Detect…
Non-destructive testing to investigate materials and structural components. The method is selected for the ma…
Portable X-ray fluorescence analysis to investigate elemental composition. Suitability, sample preparation an…
Electromagnetic cover surveys to locate reinforcement and measure concrete cover. Results support checks agai…
Pull-out testing measures the force required to remove an embedded insert from concrete. Estimation of concre…
Rebar mapping locates reinforcement and records its arrangement in concrete. Survey findings support planning…
Rebound hammer testing measures concrete surface rebound. Strength estimates require an appropriate correlati…
Controlled load testing records the response of a structural element or assembly under an agreed test load. L…
Ultrasonic pulse-echo testing to investigate internal features and thickness in concrete. Suitable access and…
Ultrasonic pulse-velocity testing measures the travel speed of pulses through concrete to assess uniformity a…
Windsor probe testing uses penetration resistance to estimate concrete strength through an appropriate correl…
Cross-hole sonic logging assesses concrete between access tubes in a pile using ultrasonic signals. Coverage …
Dynamic pile testing records a pile’s response to impact loading. Analysis supports assessment of driving beh…
Low-strain pile integrity testing assesses pile continuity from the response to an impact at the pile head. I…
Static pile load testing records pile movement under applied load. The load direction, stages and acceptance …
