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CNDT

In CNDT, there are dozens of projects carried out each year. The annual commissioned budget averages ten million NT dollars. The main operative test methods include ground-penetrating radar, the stress wave methods (Impact-echo method, Impulse Response ), the bridge dynamic displacement measurement, Infrared thermography, etc.. The testing subjects include nuclear power plants, high-speed railways, prestressed bridges, airport pavement, pier fundations, high-tech factory plants, dikes, dams, wind turbines, and residential structures, etc..

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Services

●Bridge: bridge visual inspection, modal frequency and mode shape measurement, internal damage testing, detection of unfilled duct containing the prestressing tendons, integrity of foundation.

●Reinforced concrete member: in-placed evaluation of concrete strength, depth of surface opening crack, depth and detection of delaminations and honeycombs, interfacial bond condition between new and old concrete layer, slab thickness, bond condition ofsteel plate reinforced and FRP reinforced member, determination of rebar cover thickness.  

●Building: vibration mode frequency and mode shape measurement, debond of exterior wall tiles, insulation or waterproof layer peeling, etc.

●Other infrastructures: deteriorated embankment and dam. concrete or asphalt pavement thickness.

●Geophysical survey: spectral analysis of surface wave, seismic refraction method, geoelectric resistivity method, 3D LiDAR measurement.

●Training classes of non-destructive testing methods


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