Commonly used due to compressive strength properties

Commonly used due to compressive strength properties

• A. Concrete
• B. Reinforced Concrete
• C. Steel
• D. Timber

Answer: (B)

Reinforced concrete is favored because it combines the best of two materials: concrete’s strong resistance to being squashed (compression) and steel’s excellent resistance to being pulled apart (tension). In most structural elements, loads cause bending and tension in some fibers, so concrete alone would crack and fail under those tensile stresses. Adding steel reinforcement inside the concrete carries the tensile forces and controls crack widths, while the concrete handles the compression. This teamwork creates a strong, durable, and economical material suitable for bridges, decks, and supports. Concrete by itself can’t handle tension well, so it wouldn’t be reliable for many structural roles. Steel alone is great in tension but isn’t as good at handling sustained compressive loads in concrete elements and can be more expensive or harder to protect in some environments. Timber, while usable in some cases, has lower compressive strength and durability concerns for many bridge applications.

Reinforced concrete is favored because it combines the best of two materials: concrete’s strong resistance to being squashed (compression) and steel’s excellent resistance to being pulled apart (tension). In most structural elements, loads cause bending and tension in some fibers, so concrete alone would crack and fail under those tensile stresses. Adding steel reinforcement inside the concrete carries the tensile forces and controls crack widths, while the concrete handles the compression. This teamwork creates a strong, durable, and economical material suitable for bridges, decks, and supports.

Concrete by itself can’t handle tension well, so it wouldn’t be reliable for many structural roles. Steel alone is great in tension but isn’t as good at handling sustained compressive loads in concrete elements and can be more expensive or harder to protect in some environments. Timber, while usable in some cases, has lower compressive strength and durability concerns for many bridge applications.