KEY FEATURES
TEST METHODS
FOUNDATIONS DEPTH & INTEGRITY
STRUCTURAL, PAVEMENT & TUNNEL
GEOPHYSICAL

Structural, Pavement & Tunnel NDT Systems
Click on any NDT Test Method Name to link to a more detailed page on the method
NDT Method  Standard  Applicable On Test For  Freedom
Data PC
NDE 360

Impact Echo
(IE)

impact echo testing, test for concrete cracks and delaminations, concrete voids, concrete thickness Tech Brief


ASTM C1383-04
  • Beams
  • Bridge Decks
  • Columns
  • Dams
  • Pavements
  • Pipes
  • Post-Tensioned Ducts
  • Slabs
  • Tunnels
  • Runways
  • Walls
  • Cracks
  • Delaminations
  • Honeycomb
  • Strength
  • Thickness
  • Voids

Impact Echo Scanning
(IES)

  N/A


ASTM C1383-04
  • same as Impact Echo
  • same as Impact Echo

Multiple Impact
Surface Waves

(MISW)

  N/A


  • Asphalt
  • Base
  • Concrete
  • Rock
  • Subbase
  • Subgrade Soil
  • Layer Shear Moduli
  • Layer Poisson's Ratio
  • Layer Thickness
  • Layer Young’s (Elastic) Moduli

Slab Impulse Response
(SIR)

slab impulse response, bridge deck delaminations, soft or weak subgrade support, voids below slabs, voids below tunnel linings, layer thickness, material moduli, shear wave velocity profile Tech Brief


ACI 228.2R
  • Concrete Slabs / Retaining Walls
  • Pavements
  • Pond or Pool Bottoms
  • Runways
  • Spillways
  • Tunnel Liners
  • Delaminations in Decks
  • Soft or Weak Subgrade Support
  • Voids Below Slabs
  • Voids Below Tunnel Linings

Spectral Analysis of Surface Waves-S
(SASW-S)

slab impulse response, bridge deck delaminations, soft or weak subgrade support, voids below slabs, voids below tunnel linings, layer thickness, material moduli, shear wave velocity profile Tech Brief


ACI 228.2R
  • Asphalt
  • Concrete
  • Masonry
  • Stone
  • Wood
  • Layer Thickness
  • Material Moduli
  • Shear Wave Velocity Profiles

Ultrasonic
Pulse Velocity

(UPV)

ultrasonic pulse velocity, check for voids, check for honeycomb in concrete, delaminations in concrete Tech Brief


ASTM C597-02, E494-95

BSI 98/105795

ACI 228.2R
  • Beams
  • Bridge Decks
  • Elevated Slabs
  • Shaft Tops
  • Walls
  • Cracks
  • Delaminations
  • Honeycomb
  • Velocity vs. Strength Correlation with Cores
  • Voids