What unit is standard for measuring concrete compressive strength?

What unit is standard for measuring concrete compressive strength?

• A. Kilograms per square meter
• B. Pounds per square foot
• C. Pounds per square inch
• D. Newtons per square millimeter

Answer: (C)

Concrete compressive strength is primarily measured in pounds per square inch (psi) or in megapascals (MPa), where 1 psi is equal to 0.006895 megapascals. The measurement in psi is widely adopted in the United States and reflects the concrete's ability to resist axial loads. Using psi as a unit makes practical sense in construction contexts, as it allows engineers and architects to quickly assess if the concrete will meet the specified strength requirements for structural components. Concrete compressive strength is often specified in psi for various applications, where a common standard is seen in mix design requirements and performance specifications. Other units like kilograms per square meter, pounds per square foot, or newtons per square millimeter, while potentially relevant in certain contexts, are not the standard units for this particular measurement in the prevailing practice of concrete construction in the U.S. The psi standard facilitates easier communication and consistency across design, construction, and enforcement of building codes.

Concrete compressive strength is primarily measured in pounds per square inch (psi) or in megapascals (MPa), where 1 psi is equal to 0.006895 megapascals. The measurement in psi is widely adopted in the United States and reflects the concrete's ability to resist axial loads.

Using psi as a unit makes practical sense in construction contexts, as it allows engineers and architects to quickly assess if the concrete will meet the specified strength requirements for structural components. Concrete compressive strength is often specified in psi for various applications, where a common standard is seen in mix design requirements and performance specifications.

Other units like kilograms per square meter, pounds per square foot, or newtons per square millimeter, while potentially relevant in certain contexts, are not the standard units for this particular measurement in the prevailing practice of concrete construction in the U.S. The psi standard facilitates easier communication and consistency across design, construction, and enforcement of building codes.