Welcome to the Delta Gunite Solano website! We are a family run business that has been providing quality gunite and shotcrete services for over 30 years. We are proud to say that all of our Nozzelmen are certified by ASA and ACI, for both the Wet (shotcrete) and Dry (gunite) process. We are one of California's leading residential and commercial gunite and shotcrete specialists. Our corporate office is located in Fairfield, California with yards in Sonoma, Solano and Sacramento counties. We are available to work in all regions of California.
Pools & Spas
P.I.S.E. (Pneumatically Impacted Stabilized Earth
“Gunite” is a trade name for “dry gunned” concrete. The term “gunite” has been used so much that, to most people, it means spray applied concrete. People often talk about a gunite pool — meaning a concrete pool where the concrete is pneumatically applied or sprayed in place using air pressure. Many of us in the concrete spraying business have started using the term “dry gun” to delineate this process.
“Dry gun” means the cement and sand are injected into an air stream conveying it to the nozzle. The nozzle operator then adds the water at the nozzle and has total control of the water-cement ratio. The delivery hose of the mix is generally quite light, as the hose is mostly filled with air containing the mix of cement and sand. Operator training is very critical and can mean the difference between success and failure of application.
“Wet mix” means the wet (already mixed) concrete is pumped to the nozzle. Air is added at the nozzle to carry the concrete mix to the target — again pneumatically applied. We call the system “wet gunning.” Here too, operator training is important.
Both processes undergo placement and compaction at the same time due to the force with which they are being applied. They can also be impacted onto any type or shaped surfaces. The biggest benefits are with vertical and overhead surfaces where typical poured in place concrete is costly to form and rather challenging to achieve placement and compaction in these situations.