THE SMART PRECISION

ECO-EFFICIENT
BECAUSE SUSTAINABLE

Efficient and cost-effective control
through nondestructive measurement

MIT-SCAN-T3
MEASUREMENT OF LAYER THICKNESS ON ASPHALT AND CONCRETE ROADWAYS

The MIT-SCAN-T3 was developed for the nondestructive and precise analysis of asphalt and concrete pavements. Unbound courses of the upper pavement structure (frost protection layer and aggregate base layer) can also be assessed.
The nondestructive measurements are based on pulse induction technology. However, a prerequisite is the installation of a metallic reflector (antipole) of aluminum or steel at the base of the pavement layer to be measured. Layer thickness can be determined directly during paving (self-monitoring) or later as part of control inspections (external monitoring) performed for acceptance of construction work. To take a measurement, the MIT-SCAN-T3 is run over the measuring site. Within seconds, it accurately determines layer thickness. This way, based on a larger number of measuring sites, pavement thickness can be measured extensively and effectively.



  • ADVANTAGES

  • COMPARISON

  • SPECIFICATIONS

  • ACCESSORIES

  • Software

  • Downloads

COST-EFFECTIVE

  • Durable device with a long service life if handled correctly
  • Effective control of paving deviations
  • Self-monitoring during construction for quality assurance
  • Inspections of large stretches within short time

NONDESTRUCTIVE

  • Measures by simple run over the pavement surface
  • Requires no mechanical coring

PRECISE

  • High measurement precision:  ±(1 mm + 0.5% of measured value)
  • High resolution (800 data points per measurement)
  • Exact and reproducible measurement results

    FLEXIBLE

    • Robust and compact hand-held instrument
    • Safe transport in high-quality carrying case (car suitable)
    • Measures on hot asphalt, milled surfaces and concrete
    • Measures under humid conditions and on wet pavement surfaces
    • Measurement with all standard reflectors acc. to the German specification TP D-StB 12

    RAPID AND EFFICIENT

    • Immediately ready for use
    • Without on-site calibration
    • Fast and exact reflector location (search mode)
    • Without complex search of reflector center
    • Automatic plate detection (reflector)
    • Measurement including analysis in less than a minute (measuring mode)

    SUSTAINING

    • Without pavement damage
    • Mindful of nature and the environment
    • Free of emissions

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    Nondestructive measurement of layer thickness is gaining growing acceptance in Germany, Europe and the USA. Our customers appreciate the reliability, cost-effectiveness and simple operation of our devices.

    Compared to other thickness determination methods such as leveling or depth gauging, using the MIT-SCAN-T3 has the advantage that, once set-up, a measuring site can be reused at a later time, e.g. for maintenance and restoration purposes. Besides, electromagnetic thickness measurement does not rely on reference points. Paved layers are objectively demarcated by integrating inexpensive and easy to place metallic reflectors between the layers (base course plus intermediate and surface course). Thickness measurement using levelling acc. to ZTV Asphalt-StB 07 requires e.g. the triple number of measuring points.

    Likewise, in comparison with the complex and costly process of coring, the electromagnetic thickness method fares better. In particular the core site, that needs to be refilled after core extraction, entails the risk of being a future trouble spot.

    According to the German guidelines for the construction of asphalt roadway pavements (ZTV Asphalt-StB 01), the distance between cores can be increased up to 200 meters. Yet, at least 20 measuring sites have to be assessed. The diagram below shows the high complexity of the coring method compared to nondestructive electromagnetic layer thickness measurement. With the nondestructive layer thickness method, a larger number of measuring sites can be implemented to improve statistics without affecting road structures.

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    Measurement accuracy± (0.5% of measured value + 1 mm)
    Resolution1 mm
    Measurement range15 to 500 mm based on installed reflector type
    Asphalt temperatureup to 110 °C
    Memory capacityup to 5,000 data sets
    PC connectivitytransfer to MS-Office or accounting program
    Power supplyNiMH battery 12V/2Ah
    Battery life   8 hours or approx. 1,000 measurements
    Recharge time   
    1.5 hours
    DimensionsDevice: 40 cm x 26 cm / height variably adjustable up to 145 cm
    Carrying case 85 cm x 49 cm x 38 cm
    WeightNet weight: 4 kg (device)
    Gross weight: 18 kg (device, carrying case and accessories)

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    The following accessories are available for the thickness measuring devices MIT-SCAN-T2 and MIT-SCAN-T3:

    Car power inverter
    Local charging at the construction site


    Headphones
    Acoustic signal output for high ambient noise levels


    USB flash drive
    Data transfer from device to PC or laptop


    MIT project software
    For details see Software

     

     


    Spare battery
    Provides 8 hours more operating time, if necessary. For replacement at construction site.


    Charging cable
    For recharging the device's battery


    MIT wheeled spacer
    For functionality testing according to TP D-StB 12

    Wheeled spacer instructions (PDF)


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    The MIT-SCAN-T3 provides exact and rapid result outputs on the hand-held device's display directly on-site.

    MIT's project software additionally offers you a convenient means for later results processing. The program handles measurement data from both two-layered and three-layered road constructions. The software has the following functions:

    1. Backup and archiving of data on a PC (data transfer via USB storage device)
    2. Correction of measurement location specifications (designation of construction site, kilometrage, layer)
    3. Control of measurement points (GPS)
    4. Generation of form sheets acc. to TP D-StB 12 for selected data sets
    5. Preparation of measurement site lists that the device uses for upcoming measurements
    MIT project software

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    Standards

    • ZTV Asphalt-StB 07
    • EN 12697-36 or ÖNORM EN 12697-36
    • RVS 11.03.21 (Point 5.2.1 Layer thickness)


      Your contact

      Thickness measurement support
      Head of Calibration Laboratory
      Jens Findeisen
      Phone: +49 (0) 351/871 81 06
      Send an email