Concrete Thickness Testing

Accurately measure the thickness of your concrete & find any flaws, cracks or honeycombing without drilling a single hole!

CONCRETE THICKNESS TESTING - featuring the CTG Line

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The CTG line is a nondestructive, battery powered, handheld instrument for measuring the thickness of concrete slabs, pavements, tunnel linings, walls and other plate-like structures. This device features an easy-to-use menu that requires no special knowledge or training. It reliably measures thickness of any type of concrete based on the Impact Echo principle. Use it right out of the case with built-in default concrete parameters, or for greater accuracy simply calibrate the CTG unit by testing at a point of known concrete thickness (from drilling or coring) to measure the speed of sound for a given concrete and start testing. The CTG line is:

Easy to use
Economical
PC Friendly

The guage has been used to perform approximately 1200 thickness tests on an industrial slab-on-grade floor in 5 hours during its first day of use.

60 CTG thickness tests in 1 hour for $100US
vs.
60 core thickness tests in 10 hours for $3000US
(and you still have to patch the core holes)

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Specifications and Features of the CTG Line

Thickness range: 2.8 to 22 inches in Thin mode and 10 to 60 inches in the Thick mode
Power source
- Internal rechargeable NiMH battery pack (up to 20 hours of operation per charge)
- External battery charger/AC power unit for overnight charging (110 or 220 VAC options)
- Can use AA size alkaline batteries or run direct from AC power unit
Easy to read LCD display for outdoors with switchable backlight for indoors
Lightweight - 4.4 pounds (2.0 kg), including test head and hand-held unit with batteries
Easy calibration at known thickness location
English or Metric thickness display (inches or centimeters)
Rugged hand-held test head
Extension cable and rod for hard to reach areas & floor slab tests
No coupling agents required for use
Works on cured, hardened concrete in air or on placed gravel/soil
Works through paint and some types of well bonded tile
Electric solenoid impactor for fast testing
Ruggedized displacement transducer
Accuracy typically + 2 to 5 % when calibrated on a known thickness location
1 year limited warranty
Can be hand-held or used with up to 6 ft long adjustable extension pole for overhead work or surface work without continual kneeling.
Substantial time and cost savings over traditional coring/drilling/patching for thickness measurements
Rapid nondestructive Impact Echo thickness measurements
Keyboard and side-mounted trigger switches for ease of use whether using it on a slab, a wall or overhead
Learn to use the CTG-1 in 10 minutes

English Units

Metric Units

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Available Models of the CTG Line

CTG-1T (Thickness Table)
All the features of the CTG Line Plus...

Thickness data table importable into popular spreadsheet programs
Save selected test time/date and spectral thickness results for later review
Download test time/date and results into PC through serial port

Extended thickness test range: 0.25 to 5+ ft (0.08 to 1.5+m)

Your PC and our CTG equals the best quality Impact Echo system at any price!

CTG-1TF (Thickness Table Plus Flaw Detection)
All the features of the CTG-1T Plus...

TFS data analysis software for data processing, display, and printing from PC to find internal flaws such as void, cracking, honeycomb, etc., as well as thickness echo data
Save selected spectral data plots, test time/date and results for later review
Download waveform data and test results to PC for full thickness/flaw analysis

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