What term refers to concrete that is strengthened with steel bars or mesh to increase its load-bearing capacity?

• A. Reinforced Concrete
• B. Building Code
• C. Conflagration
• D. Structural Steel

Answer: (A)

Concrete is strong in compression but weak in tension. Strengthening it with steel bars or mesh embedded within the concrete creates a composite that resists both compression and tensile stresses, allowing the structure to carry higher loads and behave more ductilely under stress. This combination, where steel reinforcement carries the tensile forces while the concrete handles compression, is known as reinforced concrete. It’s poured as a single unit with the reinforcement placed inside to work together. This also helps control cracks and improves overall resilience, especially in bending and seismic situations. The other terms refer to different concepts: a building code is a set of rules for construction, conflagration means a large, destructive fire, and structural steel describes metal framing rather than a concrete system.