Shotcrete
Shotcrete is a modern process used as a superior method of deliver for concrete constructions of many different types and applications. The basics of shotcrete are the delivery of the concrete by a wet slurry type of mix known generically as shotcrete. The term shotcrete is derived from the fact that the mixture is sprayed (or shot) out by a pressurized hose with a special head. This concrete construction/ application method allows for greater control, maneuverability and a wider range of applications than more traditional mold processing.
More about Shotcrete Applications by Fenton Gunite / Shotcrete Division
- Concrete / Structural Walls
- Culverts, Drains, Caves, Bridges or other Curved Structure
- Retention Walls
- Special Applications
Shotcrete for Walls
Although relatively new in the United States, using shotcrete to form walls has been used in other countries for years. These walls consist of a polystyrene core sandwiched between layers of wire mesh or rebar. First, a wire frame is built in the shape of exterior walls. Conduit and pipe are installed between the poly panels and the wire mesh. Then the entire structure is sprayed with shotcrete. The result: a reinforced wall with built-in insulation.
Many builders in the U.S. have expressed concerns that concrete walls made from shotcrete may not be as strong as traditional poured walls. In fact, shotcrete walls have a higher psi because they require a lower ration of water to cementitious material. This also creates other benefits like lower permeability and less shrinkage. Compressive strength and durability are also improved with walls made from shotcrete. The only concern when choosing to make your structural walls with shotcrete is partnering with the right contractor for the job. Be sure you choose an experienced partner that, like Fenton Shotcrete / Gunite Division, has the project history and experience of delivering the desired result - to spec - in a timely and economical manner.
Shotcrete for Culverts, Drains, Caves, Bridges or other Curved Structure
Shotcrete is the perfect solution for constructing or repairing any type of culvert structure including drains, caves, bridges and just about any curved structure. The flexibility of the material and the maneuverability of the equipment mean that shotcrete can be formed over an existing structure for added support to prevent cave-ins, support mining excavations, repair or form sewage or storm drains, bridges and even more unique curved structures.
Shotcrete for Retention Walls
Shotcrete is often used for retention walls in combination with a method referred to as soil nailing. Once soil nails have been placed in the earth, shotcrete is sprayed over the exposed steel bars to form the wall. The bar is then capped to help anchor the resulting wall and hold it and the soil in place. The shotcrete spraying process can then be repeated as each new excavation layer is exposed and finally, a last layer of shotcrete can be sprayed over the entire mass once excavation is complete to form a more slightly facing for the retention wall.
This process can be very handy for railroad, mining, and other industries requiring extensive excavation.
Special Shotcrete Applications
Industries such as the railroad, power plants, chemical plants, mining and others have special requirements that lend themselves to the ease, flexibility and economical benefits of shotcrete construction and applications. If you’ve had a concern in any of these areas, consider contacting a representative at Fenton Shotcrete / Gunite Division.