How to use the Colmix® process ?
The single tool can be used on any pile machine of sufficient power. Multiple tools require machines equipped with a special rotating head.
During the drilling phase, the tool breaks down the structure of the in-situ soil. A cement grout is injected during this phase to facilitate the tool’s penetration and above all to incorporate the required quantity of binder to achieve the end properties of the mixed-soil column.
Most of the mixing of the soil-cement material is therefore carried out during this phase. Mixing of the materials is refined during the auger extraction phase.
Intersecting columns are built according to the same principle, by drilling into pre-constructed columns (either fresh or once they have already started to set).