Reinforced Concrete (R.C.C.) jacketing is a structural strengthening technique used to enhance the load-bearing capacity and durability of existing concrete elements such as columns, beams, and walls. This method involves the application of additional layers of reinforced concrete around the existing member, effectively increasing its cross-sectional area and improving its structural performance.

The process of R.C.C. jacketing typically begins with a comprehensive structural assessment to determine the extent of deterioration, damage, or deficiencies in the existing concrete element. This evaluation helps engineers identify areas requiring reinforcement and develop appropriate design solutions.

Before jacketing, surface preparation is crucial to ensure proper adhesion between the existing concrete and the new jacketing material. This may involve cleaning the surface, removing loose debris, and repairing any cracks or defects to create a sound substrate for the application of the jacketing material.

The jacketing material is typically composed of high-strength concrete reinforced with steel bars or fibers to provide additional strength and ductility. The thickness of the jacket is determined based on structural calculations considering factors such as the existing load, required strength enhancement, and structural configuration.

During installation, the new concrete jacket is carefully placed and secured around the existing element using formwork and reinforcement bars. Special attention is paid to ensure proper alignment, consolidation, and curing of the jacketing material to achieve optimal structural performance.

R.C.C. jacketing offers several benefits, including increased load-carrying capacity, improved resistance to seismic and dynamic loads, enhanced durability, and extended service life of existing concrete structures. It is commonly used in retrofitting and rehabilitation projects to address structural deficiencies, increase safety margins, and meet updated design standards and regulations.

Moreover, R.C.C. jacketing can be customized to suit specific project requirements and design constraints, making it a versatile solution for strengthening a wide range of concrete elements in various types of structures, including buildings, bridges, dams, and industrial facilities.