Which type of joint consists of a rectangle of neoprene with a honeycomb cross section?

Which type of joint consists of a rectangle of neoprene with a honeycomb cross section?

• A. Compression joint seal
• B. Cellular joint seal
• C. Pourable seal
• D. Strip seal

Answer: (A)

Understanding how joint seals are built helps you recognize which type is described. A rectangular block of neoprene that has a honeycomb cross-section is designed to be placed into the joint and then compressed by the surrounding concrete. That honeycomb interior lets the material deform under load while still recovering to maintain a tight seal as the deck moves with temperature changes and traffic. This behavior—solid neoprene formed to a rectangular shape with a cellular, honeycomb interior that seals through compression—is characteristic of a compression joint seal. Pourable seals rely on a liquid or pourable material that fills and cures in the joint, strip seals use long neoprene strips with backing, and cellular seals typically have a cellular or foamed core designed for compression in a different way.

Understanding how joint seals are built helps you recognize which type is described. A rectangular block of neoprene that has a honeycomb cross-section is designed to be placed into the joint and then compressed by the surrounding concrete. That honeycomb interior lets the material deform under load while still recovering to maintain a tight seal as the deck moves with temperature changes and traffic. This behavior—solid neoprene formed to a rectangular shape with a cellular, honeycomb interior that seals through compression—is characteristic of a compression joint seal. Pourable seals rely on a liquid or pourable material that fills and cures in the joint, strip seals use long neoprene strips with backing, and cellular seals typically have a cellular or foamed core designed for compression in a different way.