A joint described as consisting of backing material, joint filler, and poured sealant is called which?

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

Answer: (D)

Pourable seal describes a joint built with backing material, joint filler, and a liquid sealant that is poured into the joint and cures to form the seal. The backing material sets the depth and gives a solid surface for the sealant to adhere to, while the joint filler maintains the gap and supports the sealant during curing. The poured sealant then completely fills the joint, bonding to the sides to create a continuous, flexible, watertight seal that can accommodate movement. This approach differs from cellular or strip seals, which use preformed materials or strips instead of a poured liquid seal. In short, the combination described is characteristic of a pourable seal.