Specialist Grouting

In addition to grouting work undertaken as part of mine workings stabilisation and mine infilling work we provide a range of specialist grouting services.

  • Compaction grouting – for example treatment of mine workings or solution features in chalk with sand/cement/pfa/bentonite grout mixes
  • Consolidation grouting of loose fills or granular strata for ground improvement or underpinning existing structures using pfa or pfa/sand based grout mixes
  • Encapsulation grouting of inaccessible hot spots of contamination such as gas holder bases using special cementitious and resin grouts
  • Groundwater or gas barriers using resin grouts or special cementitious grouts
  • Fissure grouting of fault zones and other strata anomalies
  • Anchor grouting—cintec anchors, soil nails, rock bolts and ground anchors
  • Annulus filling - bentonite/cement grouting of large diameter pipelines installed in tunnel or pipejack for the oil & gas industry
  • Underwater grouting for bridge abutments and foundations using specialist anti wash-out and waterproof grouts
  • Sewer, culvert and redundant utility pipeline grouting
  • Bridge, underpass, subway and cellar filling using pfa and foamed grouts
  • Packer installation and deep borehole grouting
  • Tunnel grouting for example to fill behind linings in brick lined rail tunnels
  • Slab jacking

We operate a wide range of grout mixing, pumping and ancillary plant for this type of work, much of which is bespoke plant designed and developed in-house;

  • Grout mixing plant including paddle mixers, pug mill mixers, volumetric mixers and colloidal mixers, capacity 0.5—150m3 per hour
  • Grout pumping equipment includes trailer mounted concrete pumps, peristaltic pumps, duplex grout pumps, diaphram and screed pumps
  • Mobile agitators and re-mixers up to 10m3 capacity
  • Vertical and horizontal silos
  • Pressure gauging and electro-magnetic flow monitoring equipment

Project Profiles

To see our Project Profiles for Specialist Grouting, click here.

  • ISO 9001, 14001, 45001
  • Investors in People
  • Achilles UVDB (Utilities Vendor database) and ‘Verify’ audit
  • Achilles Building Confidence
  • Member of CECA Midlands Region The Civil Engineering Contractors Association
  • CHAS Contractors Health & Safety Scheme
  • Construction-line
  • SAFEcontractor
  • Member of the BDA British Drilling Association
  • Social Mobility Pledge
  • Women into Construction
  • Real Living Wage
  • Science Based Target Initiative