Non-destructive measurement

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TP D-StB 12 approved

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Measuring range up to 400 mm

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The ElektroPhysik StratoTest-4100 Asphalt Thickness Gauge is designed for measuring the thickness of all non-metallic layers in the context of construction work, like bituminous mixtures (asphalt), blast furnace slag, concrete, etc.

The measuring process is non-destructive and TP D-StB 12 approved (Technical testing regulations applicable for calculating surface thickness in road construction) to gauge individual and total thickness of layers in road construction.

Use of the device in road constructions typically involves placing aluminum foil at the base of an asphalt layer yet to be applied. The foil gets packed in by the gravel mix and thus does not hamper the process of inter-layer bonding. Decades of experience have shown that the foils do not affect the stability of the asphalt layers.

Unlike the core drill method, this does not damage the construction layer.

The measuring reflectors can be located by a bar graph display on the measuring device or acoustically by the headphones included in the delivery.

There are three kinds of probes available for special applications in the construction sector:

N 100ST: Up to 100 mm to measure the covering layer in road construction

N 400ST: Measuring range between 0 and 400 mm to measure the base and covering layers in road construction

N 800ST: Up to 800mm

Non-destructive thickness measurement of non-magnetic layers in the field of construction, e.g.:

Asphalt, slag, gravel and concrete layers in road construction

Concrete layers in landfill construction work

Kit Contents

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Features

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• Non-destructive measurement
• TP D-StB 12 approved
• Measuring range up to 400 mm
• Direct display of thickness
• Unlimited measurements repeatedly at the same spot
• Easy location of the measuring reflectors

Specifications

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Measuring Principle	Eddy Current testing
Measurable layers	all non-metallic road layer materials
Reflectors	aluminium foils or sheets of different sizes
Measuring Range	0 - 40 cm N400ST Standard Probe 0 - 10 cm N100ST Optional Probe 0 - 80 cm N800ST Optional Probe
Resolution	0.1 cm @ 0 - 30 cm 0.2 cm @ 30 - 35 cm 0.4 cm @ 35 cm+
Tolerance of standard probe	± (0.1 cm +2 % of reading) @ 0 - 30 cm ± 2 % of reading @ 30 - 35 cm ± 2 % of reading @ 35 - 40 cm
Display	LCD Panel
Data Memory	DIRECT mode: approx. 500 single readings and statistical values SITE mode: approx. 6,000 single readings incl. statistics 5 site memories available with 300 stations each 4 measuring spots per station 5 layer material types per measuring spot
Power supply	1 x 9 V alkaline battery
Battery	~ 20 hours
Ambient temperature	gauge: 0 °C - 50 °C probe: 0 °C - 70 °C

Downloads

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ElektroPhysik StratoTest-4500-C Kiln Lining Thickness Gauge - Data Sheet