Which one of the following is not a major component of Portland cement concrete?

What is not a major component of Portland cement concrete?

The correct answer is C. Reinforcing bars. Reinforcing bars, also known as rebar, are not a major component of Portland cement concrete. Rebar is typically used in reinforced concrete structures to provide additional strength and reinforcement. It is embedded within the concrete to withstand tensile forces and improve the overall structural integrity.

Components of Portland Cement Concrete

A. Cement: The binding agent that holds the concrete together.

B. Water: Used to mix with the cement and initiate the hydration process, which leads to the hardening and setting of the concrete.

D. Fine Aggregates: Small particles such as sand that, along with the cement, form the matrix of the concrete.

E. Coarse Aggregates: Larger particles such as gravel or crushed stone that provide bulk and stability to the concrete mixture.

Therefore, reinforcing bars (rebar) are not a major component of Portland cement concrete.