Shotcrete is used instead of conventional concrete, in most instances, for reasons of cost or convenience. Shotcrete is advantageous in situations when form work is cost prohibitive or impractical and where forms can be reduced or eliminated.
If access to the work area is difficult, thin layers or variable thicknesses are required, or normal casting techniques cannot be employed, shotcrete becomes a suitable method. Additional savings are possible because shotcrete requires only a small, portable plant for manufacture and placement. Shotcreting operations can often be accomplished in areas of limited access to make repairs to structures.
Sustainability continues to grow as a driving force in the decision-making regarding construction materials and placement strategies. Because shotcrete is simply a method of placing concrete, it offers all of the sustainability benefits of concrete as a building material.
• Formwork savings over conventional cast-in-place construction
• Complex shapes require very little, if any formwork
• Crane and other equipment savings or elimination
• New construction speed savings
• Speed of repair reduces or eliminates downtime
• Better bonding to the substrate, which enhances durability