A method in which mortar conveyed through a hose and pneumatically projected
at a high velocity onto a surface is called-
-
A.
Ferrocement
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B.
Varnishing
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C.
Concreting
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D.
Gunite
Correct Answer:
D. Gunite
Explanation:
The method where mortar is transported through a hose and sprayed onto a surface at high velocity using compressed air is known as Gunite. This process, also referred to as the dry-mix shotcrete process, involves mixing cement and sand dry and adding water at the nozzle during application. The force of the pneumatic projection ensures the material compacts instantly upon impact, making it ideal for vertical or overhead surfaces like swimming pools, tunnel linings, and structural repairs. While related, ferrocement refers to a reinforced material type, and concreting is a general term for placing concrete.
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