Construction joints are:

• A. Joints that connect pours
• B. Joints designed to separate one pour from another
• C. Joints that reinforce with steel
• D. Joints that seal against moisture

Answer: (B)

Construction joints are breaks that separate one concrete pour from another, allowing a large project to be poured in stages. They’re planned where a single, continuous pour isn’t practical due to size, scheduling, or curing considerations. At the joint, the surface is prepared so the next pour can bond to the hardened surface (often with a roughened texture or key and, if needed, dowels or alignment features to transfer loads). This makes the joint a controlled separation point that accommodates construction sequencing and concrete behavior. They aren’t primarily about connecting pours, reinforcing with steel, or sealing moisture, which are handled by other joint types or detailing.