Geotechnical engineering work to understand how infrastructure interacts with the ground – they deal with foundations, slopes, retaining structures, embankments and tunnels.
Specialist contractors for deep foundations use specific support fluids on their projects.
In order to successfully completing an excavation or a drilling at best cost, engineers need fluids that continually support the excavation, carry cuttings to the surface and permit separation, and increase skin friction.
The fluids need to cause no pollution to the ground and groundwater and must not harm site operatives.
Three types of drilling fluids are used in civil engineering applications:
SNF hydrosoluble polymers are used extensively as performance additives in these applications to boost the performance of bentonite, or for preparation of polymer slurries for bored piles, diaphragm walls, anchors ties, bentonite-cement plastic walls.