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02/ Qualitative Non-Destructive Testing (NDT) and Geotechnical Investigation Services

Non-Destructive Testing (NDT)

Our NDT services involve a Qualitative evaluation of structural integrity using various techniques to established international code requirements. We deploy tools and equipment including ultrasonic testing, rebound hammers, rebar scanners, ground penetrating radars among others that utilise latest technologies to identify materials, assess material properties, quality, integrity and extent of deterioration in a building, facility or infrastructure of concern.

NDT helps identify defects, assess material properties, and monitor structural health.

Our NDT Services Enable

01

Locating of embedded Rebars and Conduits

We utilise technologies leveraging on principles of eddy currents and electromagnetic waves to locate buried objects like rebars and conduits. We acquire technical information such as depth of embedment, rebar diameters, size, cover in both above and below ground and facilities.

Commonly deployed tools include –

  • Wall scanner, Rebar detector/scanner,
  • Ground Penetrating Radar (GPR)

02

Classification of Cracks in Concrete

Measurement of size and depth of cracks to assess the extent of damage. We utilise magnification tools and technology working on principle of sound waves.

Commonly deployed tools include –

  • Crackwidth gauge, crack comparator, vernier caliper
  • Ultrasonic Pulse Velocity (UPV)

03

Quality and Integrity of Concrete Assessment

Our concrete evaluation services employ a range of NDT techniques including surface hardness and sound waves to assess the quality, integrity, and strength of concrete structures.

Depending on the scope of works, the tools commonly deployed are either any or combination of –

  • ultrasonic pulse velocity, rebound hammer,
  • ultrasonic pulse-echo tomography and impact-echo

04

Corrosion and Durability

This assessment services evaluate the susceptibility of structures to corrosion and assess their overall durability. This includes the detection of corrosion-induced voids and delaminations, corrosion of rebars and metal surfaces.

Tools commonly deployed utilise technologies that are either any or combination of –

  • Half-Cell Corrosion potential Mapping, Surface Electrical Resistivity
  • Infrared Thermography, Ground Penetrating Radar (GPR), Corrosion Rate Measurement.

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