Impact echo testing equipment supplier

The use of traditional stress wave methods, such as ultrasonic through transmission, to identify the presence of anomalies in structures requires access to both faces of a member. Furthermore, it is not possible to determine the depth to anomalies. These drawbacks are eliminated by using the impact-echo method, which requires access to only one surface. The impact-echo method is based on monitoring the periodic arrival of reflected stress waves and is able to obtain information on the depth of the internal reflecting interface or the thickness of a solid member.

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Description

The DOCter is a versatile, portable system based on the impact-echo method, and can be used for the following applications:

  • Measure the thickness of pavements, asphalt overlays, slabs-on-ground and walls
  • Detect the presence and depth of voids and honeycombing
  • Detect voids below slabs-on-ground
  • Evaluate the quality of grout injection in post-tensioning cable ducts
  • Integrity of a membrane below an asphalt overlay protecting structural concrete
  • Delamination surveys of bridge decks, piers, cooling towers and chimneystacks
  • Detect debonding of overlays and patches
  • Detect ASR damage and freezing-and-thawing damage
  • Measure the depth of surface-opening cracks
  • Estimate early-age strength development (with proper correlation)

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