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    Digiforce Strikes A Chord at Bison Concrete

    digiforce-150x150Bison is the UK’s leading producer of structural, precast concrete products.  Consistent, quality control is vital to maintain the company’s position at the forefront of the sector.

    Bison is particularly renowned for prestressed elements, including hollow-core floors, solid composite floors and beams.  Integral to the durability and structural performance of these products is the correct tensioning of the prestressing steel tendons.  There are approximately 30 tendons in the average 1200mm-wide hollow-core floor slab.  These may be up to 160m in length.

    The tendon carrier precedes the casting hopper.  It lifts the tendons to the required depth in the slab so that sufficient concrete cover is achieved during casting.

    The tensioning equipment must be tested on a regular basis, but current methods are cumbersome and time-consuming to use.  Accuracy is very much dependent on the skill of the operator.

    The unique Digiforce developed jointly by TMS Systems, and Applied Measurements has enabled Bison to achieve rapid, highly repeatable, non-contact tension measurement using the latest technology incorporated into their new Digiforce non-contact tension meter.

    The Digiforce non-contact tension meter operates on the principle that when a tensioned cable or wire is struck it vibrates at a frequency relative to its tensile stress.  These vibrations interfere with the magnetic field created by the Digiforce and, via unique software, allow accurate force measurements to be made.

    The Digiforce non-contact tension meter is quick and easy to use.  Only two inputs are required – the tendon length and the weight in grams per metre.  As the measurement is taken, a reading in KiloNewtons is digitally displayed.  The values can be saved in the internal datalogger and downloaded for quality control purposes.

    The Digiforce tension meter is supplied in a robust carry case with a bush hammer for creating resonance and ferrous clips for non-magnetic tendons.  Lookup tables from which to calculate the weights of various types of tendons, cables or strands are also included.  It is also resistant to shocks and rated to IP65 (waterproof).

    Click here to visit the main Digiforce section

    Bison Concrete can be contacted on 01283 495000 or via their website, bison.co.uk

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