Nails and rock bolts


Bars, used in slightly sloping or horizontal drillings, are sealed over their whole length and do not need pre-stressing. Bars could be subject to tension.

They could be without protection (P0) or protected with a corrugated sleeve injected with cement grout(P2).

For this application, you could use SAS500/SAS670 bars or the self-drilling range.



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