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Shotcrete is an all-inclusive term for spraying concrete or mortar with either a dry or wet mix process. However, shotcrete may also sometimes be used to distinguish wet-mix from the dry-mix method. The term shotcrete was first defined by the American Railway Engineers Association (AREA) in the early 1930s. [6]
The primary advantages of fibre-reinforced shotcrete are: Addition of steel fibers into the concrete improves the crack resistance (or ductility) capacity of the concrete. Traditional rebars are generally used to improve the tensile strength of the concrete in a particular direction, whereas steel fibers are useful for multidirectional ...
Soil nailing evolved from the New Austrian tunnelling method, which is a system for underground excavations in rock.This method consists of passive steel reinforcement in the rock followed by the application of reinforced shotcrete.
Shotcrete is also used for applications where seepage is an issue to limit the amount of water entering a construction site due to a high water table or other subterranean sources. This type of concrete is often used as a quick fix for weathering for loose soil types in construction zones. There are two application methods for shotcrete.
Shoring is commonly used when installing the foundation of a building. A shoring system such as piles and lagging or shotcrete will support the surrounding loads until the underground levels of the building are constructed. Commonly used shoring equipment includes post shores, shoring beams, and timber jacks.
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Shotcrete is a name that covers both dry and wet mix, so shotcrete is the better name for a topic containing both wet and dry mix sprayed concrete. Oyvind 10:26, August 30, 2005 (UTC) Reply- Gunite is the term for only the dry process and has been widely used in North America since the first development of the process around 1900.
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