Shell (Concrete)

Definition

Shell concrete refers to the concrete outside the transverse reinforcement confining the concrete.

Purpose

The purpose of shell concrete is to provide a protective outer layer for the reinforced concrete structure, enhancing its durability and resistance to external forces.

Examples of Use

• In cylindrical columns, the shell concrete protects the inner core and transverse reinforcement.
• Shell structures like domes and shells in architecture use this type of concrete for both strength and aesthetic purposes.
• Concrete pipes have a shell to provide structural integrity and protect the internal reinforcement.

Related Terms

• Reinforced Concrete: Concrete that is strengthened by embedding steel bars, wires, or mesh.
• Transverse Reinforcement: Reinforcement that runs perpendicular to the main reinforcement, providing additional stability.
• Cover: The layer of concrete over the reinforcement to protect it from environmental exposure.

Notes

The thickness and quality of the shell concrete are crucial for protecting the internal reinforcement and ensuring the longevity of the structure.

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