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Guniting Techniques

Guniting is a process used in construction for the application of slope stabilization and certain rehabilitation purpose mainly in the construction of retaining walls, swimming pool construction, tunnel construction, in fluid tank construction and some of the concrete repair works.

The guniting is hence called as the dry-mix shotcrete process which conveys dry material from a machine to surface of application through a nozzle by means of compressed pressure and high velocity.

The application is facilitated by the addition of water at the nozzle area. The mix that finally comes out is a combination of dry material and water. The operator has the control on the addition of water and the combination water content.

The mix used in guniting is cement mortar mix. There may be variations based on the application and requirements of the area.

Applications

  • Slope stabilization
  • Basement support systems
  • Dome Construction
  • Tunneling
  • Retention walls
  • Water tanks and pools
  • Artificial ponds
  • Ditches and Channels
  • As structural reinforcement
  • Mining applications
  • Dikes and dams

Advantages

  • Placing and consolidating at the same time
  • Better adherence than regular concrete
  • Good replacement of welded wire meshes when used with steel fiber
  • Lower costs when compared to traditional concrete
  • It offers reduced shrinkage and lower permeability

Disadvantages

  • Careful and skillful operation and control of the nozzle
  • Initial production cost is very high
  • Dusting problems persists