Electromagnetic Testing
EMT tests can be conducted for example on the following:
a) Chairlift ropes
b) Hoist ropes
c) Overhead crane ropes
Ground Penetrating Radar testing
"Ground penetrating radar (GPR) or ground probing radar is a useful method for NDT testing of buildings, bridges, tunnels and retaining walls, and for general concrete testing applications".
The ground penetrating radar method is non-destructive and non-invasive, revealing a wealth of internal detail without the need for coring or breaking out. Survey results are presented as easy to understand engineering CAD plans, elevations and sections.
Ground penetrating radar equipment can be adapted for different requirements using interchangeable antenna units. Low frequency GPR antennas locate large steel elements in concrete and detect deep-seated voids. Small, hand-held, high frequency antennas are best for locating rebar’s, cable ducts and tie bars. The high frequency devices can also assess the integrity of reinforced concrete and brickwork, and find small voids, delaminations, cracks and other defects.
Some of the ground penetration radar NDT applications:
b) Investigates thickness and internal structure of floors and walls
c) Locates internal steelwork in concrete such as rebar’s, girders & cable ducts
d) Identifies backing behind masonry arches.
e) Locates voids, cracks and delamination in concrete and masonry
f) Finds zones of water penetration and corrosion within defective concrete
g) Determines thickness of brickwork and masonry construction layers
h) Monitor the integrity of structures throughout their life cycle, to optimize regimes and audit structures for compliance
