Grouting: Compaction grouting

Compaction grouting is the most common technique selected for sinkhole stabilization. Compaction grout is composed of common Portland cement, water and sand, and is pumped into the soils below a home through pre-placed pipes. The compaction grouting program is designed and monitored by a geotechnical engineering company.

Compaction grouting involves the injection of a
low slump, mortar grout to densify loose, granular soils and stabilise subsurface voids or sinkholes.

Common uses:

- Suitable for rubble fills, poorly placed fills,
loosened or collapsible soils, soluble rocks and
liquefiable soils
- Often selected for treatment beneath existing
structures because the columns do not require
structural connection to the foundations
- Decrease or correct settlement
- Increase bearing capacity
- Stabilise sinkholes or reduce sinkhole potential

More information:
https://www.keller.co.uk/expertise/te...

#Geotechnics #Grouting #CompactionGrouting #SoilMechanics