Structural & Non-Destructive Testing

Non-Destructive Testing (NDT) utilises a number of methods designed to non-invasively measure the internal properties and condition of engineered structures. NDT methods can be carried out on a wide range of building materials including concrete, masonry, timber and asphalt.

Using NDT methods GBGMAPS can obtain detailed internal condition assessments of a variety of engineered structures. Together with targeted invasive testing, laboratory testing and visual inspection a complete assessment can be made.

• Buildings
• Bridges
• Tunnels
• Road pavement
• Rail ballast

Typical applications for NDT carried out by GBGMAPS include:

• Construction detail of concrete structures including reinforcement spacing, depth of cover and diameters, and concrete thickness and strength
• Assessment of concrete condition including honey combing, delamination, voiding and reinforcement corrosion potential
• Mapping of features within concrete structures including service conduits, poorly grouted PT ducts and void formers
• Assessment of internal condition of timber structures including bridges and power poles
• Construction detail and condition within brick and concrete lined tunnels
• Construction detail and condition of retaining structures including dams and retaining walls
• Assessment of heritage structures
• Pavement layer thickness and condition for roads and runways
• Ballast layer thickness and condition/fouling along rail tracks
• Measuring pile depths
• Thermal imaging for void and leak detection

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