Pneumatically projected concrete or mortar.
Like Gunite, this term was originally a proprietary name for a technique for spraying concrete. Now used interchangeably with ‘ Gunite’.
Pneumatically applied cement, water, sand and fine aggregate mix that is sprayed at high velocity on the rock surface and is thus compacted dynamically. Tends to inhibit blocks ravelling from the backs, walls and face of an excavation.
A mixture of sand and cement sprayed onto contoured and supported surfaces to build a pool or spa. Plaster is applied over the shotcrete. Shotcrete is premixed and pumped wet to the construction site.
A mixture made of course aggregate up to 2 cm thick, applied by pneumatic pressure through a specially adapted hose and used as a fireproofing agent and as a sealing agent to prevent weathering of mine timbers and roadways.
A type of spray-applied concrete. MetaMax® EF is especially formulated to help reduce rebound when spray-applying concrete. Similar to "gunite".
Mortar or concrete conveyed through a hose and projected pneumatically at high velocity onto a surface; dry-mix shotcrete (gunite), and wet-mix shotcrete.
Mortar or concrete pneumatically projected at high velocity onto a surface. Also known as air-blown mortar. Pneumatically applied mortar or concrete, sprayed mortar, and gunned concrete. See concrete.
Consists of concrete that can be sprayed on specially designed walls and other surfaces. pp. 8, 25, 34, 38
Quick-setting concrete is sprayed onto the bare rock surface immediately after excavation. It forms preliminary tunnel liner.
the name usually given to mixes containing coarse aggregate, sand, and cement, mixed and applied under hydraulic pressure.
A different type of application of the concrete and sand mix which is used to "shoot the shell". Gunite is pumped dry and mixed with water at the gun, whereas shotcrete is pumped wet.
Similar to Gunite, but premixed.
Mortar or concrete which is pumped or "shot" through a hose, onto a surface, at high velocity. Also referred to as Gunite, it enables concrete to be sprayed on walls and curves.
Shotcrete and gunite are two commonly used terms for sprayed concrete. Shotcrete is mortar or concrete conveyed through a hose and pneumatically projected at high velocity onto a surface. Shotcrete undergoes placement and compaction at the same time due to the force with which it is projected from the nozzle.