Which joint type is typically sealed with a neoprene seal and uses two steel anchorages?

Which joint type is typically sealed with a neoprene seal and uses two steel anchorages?

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

Answer: (C)

Neoprene strip seals are used in expansion joints to provide a flexible, watertight barrier while allowing the joint to move. A strip of neoprene is installed across the joint and secured at both ends with steel anchorages. Those two anchorages hold the strip in place and resist extrusion as the bridge expands and contracts, keeping the seal effective under movement and weather. This combination of a neoprene sealing strip plus two steel anchorages is the hallmark of a strip seal joint. Other joint types use different sealing methods—pourable seals rely on poured materials, cellular seals use foam cells, and compression seals use different compressible materials without the same two-end anchoring arrangement—so they don’t match the description as well.

Neoprene strip seals are used in expansion joints to provide a flexible, watertight barrier while allowing the joint to move. A strip of neoprene is installed across the joint and secured at both ends with steel anchorages. Those two anchorages hold the strip in place and resist extrusion as the bridge expands and contracts, keeping the seal effective under movement and weather. This combination of a neoprene sealing strip plus two steel anchorages is the hallmark of a strip seal joint. Other joint types use different sealing methods—pourable seals rely on poured materials, cellular seals use foam cells, and compression seals use different compressible materials without the same two-end anchoring arrangement—so they don’t match the description as well.