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Effect Of Wire Mesh Orientation On Strength Of Beams Retrofitted Using Ferrocement Jackets

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Author(s): Maneek Kumar | Prem Pal Bansal | S.K.Kaushik

Journal: International Journal of Engineering
ISSN 1985-2312

Volume: 2;
Issue: 1;
Start page: 8;
Date: 2008;
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Keywords: ferrocement | retrofitting | jacket | wire mesh | orientation | beams.

ABSTRACT
Various retrofitting techniques are used in field and out of all plate bonding technique is considered as the best. In this technique, the plates of different materials viz CFRP, GFRP, ferrocement etc are bonded to the surface of structural member to increase its strength. Ferrocement sheets are most commonly used as retrofitting material these days due to their easy availability, economy, durability, and their property of being cast to any shape without needing significant formwork. In the present work, effect of wire mesh orientation on the strength of stressed beams retrofitted with ferrocement jackets has been studied. The beams are stressed up to 75 percent of safe load and then retrofitted with ferrocement jackets with wire mesh at different orientations. The results show that the percent increase in load carrying capacity for beam retrofitted with ferrocement jackets with wire mesh at 0, 45, 60 degree angle with longitudinal axis of beam, varies from 45.87 to 52.29 percent. Also a considerable increase in energy absorption is observed for all orientations. However, orientation at 45 degree shows higher percentage increase in energy absorption followed by 60 and 0 degree respectively.
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