The staff suspected that the leaking was caused by the absence of waterproofing membrane on the rooftop which resulted in water penetrating through. Before repairing the leaking, they requested an assessment to determine whether there were any void present within the slab.
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We carried out the assessment with our enhanced concrete scanning technology to detect the potential voids within the concrete slab. Xradar™ provided high-resolution subsurface imaging to detect variations in density, reinforcement positioning, and anomalies that may indicate voiding.
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The results identified both possible and suspected voids, concentrated primarily on the right-hand side of the building. Within these zones, voiding was detected across radii ranging between 0.5–2.5m. Some locations were classified as “suspected voids,” where signal strength was reduced due to site conditions, but which still require close attention during remedial works.
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We provided the hospital with a comprehensive structural assessment of the slab within less than an hour. By detecting anomalies early, the client can mitigate risks of water penetration, minimise repair costs, and extend the service life of the structure.
