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“steffen praetorius”

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  • Bentonite Handbook

    Lubrication for Pipe Jacking

    by Steffen Praetorius, Britta Schößer ...
    Pipe jacking is a construction process for the no-dig laying of pipes. Successful pipe jacking demands low skin friction between the ground and the jacked pipe. This is achieved with bentonite lubrication. The bentonite slurry fed into the annular gap fulfils several purposes. It stabilises the annular gap by supporting the surrounding ground and reduces friction contact between ground and jacked ... Read more

    $68.00 USD