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Used to perform non destructive sliding tests, to estimate the specific anchorage capacity of Swellex rock bolts.
In soft or fractured ground (as in schist rock), they can help to maintain the integrity of the rock mass at the collar of the drill hole
They stop the expansion of the Swellex at the collar of the drill hole.
Technical data and Ordering information
2 avenue de l'Eguillette, ZI Vert Galant
BP 67181 Saint-Ouen-l'Aumône
95056 Cergy-Pontoise cedex