Grouting

Consolidation and sealing of the subsoil

We usually use grouting to seal or consolidate the building fabric. By this we mean the injection of suspensions or injection material via boreholes into air- or water-filled cavities in soil, rock or structures for the purpose of sealing and/or consolidating the subsoil or building fabric.

Implementation

Grouting pipes are installed in a previously drilled hole and filled with a casing mixture. The grouting material is then injected into the subsoil using packers, sleeve pipes, etc., depending on the requirements. Repeated re-injection increases the efficiency.

Procedure and design variants

Rock, loose soil or building injections
Injection agents made from cement suspensions, solutions, emulsions, resins, polyamides, etc.
Filling, breaking or compaction injections
Consolidation or sealing injections

Examinations

Field tests

Applications

Substrate injections for creating sealing veils under dams and barriers
Sealing and prestressing injections
Stabilisation of slopes and landslides
Increasing the load-bearing capacity of foundation bodies
Injections to immobilise harmful substances

Technical data

Pump capacity	low pressure (1 bar) to high pressure (100 bar)
Delivery rate	infinitely variable from 0 to 30 l/min
Drilling depths of	up to 100 m possible
Device	fully automatic injection container