Geneq > Essais sur Matériaux > Béton

Mesureur de l'épaisseur du béton et de sa qualité
modèle CTG-1T


You no longer need to drill, core or excavate to determine concrete slab thickness using our
The CTG™ line of instruments are nondestructive, battery powered, handheld systems for measuring the thickness and integrity of concrete slabs, pavements, tunnel linings, walls and other plate-like structures. These systems feature a gauge that records thickness information, a test head for generating and receiving resonant sound waves and a telescoping pole for use on flatwork or overhead. The CTG™ requires no special knowledge or training for thickness measurements! It reliably measures the thickness of any type of concrete using the Impact Echo (IE) principle. Use it right out of the case with built-in default concrete parameters, or for greater accuracy, simply calibrate the CTG instrument by testing at a point of known concrete thickness as a calibration reference for the speed of sound in that concrete and start testing!

Verify concrete pavement thickness in 1-Easy step !
CTGTM Features
  • Ruggedized handheld test head with integrated displacement transducer and solenoid impactor
  • No coupling agents required for use of test head .. on concrete or masonry
  • Works on cured, hardened concrete suspended in air or slab on grade
  • Works through hard paint and most types of bonded tile (checks tile bonding too!)
  • Easy to read LCD display for outdoors with switchable backlight for indoors
  • English (inches) or Metric (centimeters) thickness and spectral impact echo thickness signal display
  • Easy velocity calibration at known thickness locations
  • Store 300 tests and download test time/date and results into your PC
  • Thickness data table can be imported into popular spreadsheet programs
  • Save selected date/time and spectral thickness results for reviewing at a later time
  • Super Thin (ST) concrete option on various models
  • Surface Wave Velocity (SW) option on various models
IMPACT-ECHO BASED CONCRETE
THICKNESS AND FLAW GAUGES
SURFACE WAVE (SW) VELOCITY OPTIONS
The SW models incorporate the capabilities of our existing CTG-1T, and includes a detachable 20cm long arm to the front of the test head with a second displacement transducer to also allow for Spectral Analysis of Surface Wave (SASW) testing. The advantage of the CTG-1T-SW Model is that it can check concrete quality/velocity from one side without having to know the thickness of the concrete being tested, which is required for backcalculation of the IE velocity in the CTG-1TF model. The CTG-1T-SW will display surface wave velocity (Vr) vs. wavelength (l) on its screen (see below) and the calculated IE velocity (V) with a quality factor for the uniformity of the result of measuring an average velocity for the concrete depth of interest. The CTG-1T-SW can be used for correlating strength vs. velocity in the field to laboratory tests of concrete specimens (cubes, beams or cylinders) with Impact Echo (IE) or Ultrasonic Pulse Velocity (UPV) measurements. The CTG-1TF-SW Model combines Impact Echo (IE) thickness and flaw detection with SASW velocity measurement for the most powerful concrete thickness, integrity, and quality gauge in the world! This option includes our WINTFS-IE and WINTFS-SASW software for IE flaw/velocity analysis.
Available

CTG THICKNESS GAUGES
 Standard Model CTG-1T™
 Enhanced Feature Models for the CTG-1T™:

  • CTG-1T™ + Super Thin (ST)
  • CTG-1T™ + SW Velocity Option (SW)
  • CTG-1T™ + (ST) + (SW)

CTG THICKNESS/FLAW GAUGES*
Standard Model CTG-1TF™
Enhanced Feature Models for the CTG-1TF™:

  • CTG-1TF™ + Super Thin (ST)
  • CTG-1TF™ + SW Velocity Option (SW)
  • CTG-1TF™ + (ST) + (SW)

     *Same equipment as thickness gauges, but with
    enhanced software capabilities. The “F” indicates
    FLAW capabilities in product identifications.

The CTG gauge can be used overhead, on a wall, or attach the
telescoping pole for use on flatwork and hard to reach places

CTG-1TF-SW Vr vs l for V calculation in IE