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expansion joint[ik′span·shən ‚jȯint]
In masonry, a flexible bituminous fiber strip used to separate blocks or units of concrete to prevent cracking caused by thermally induced expansion and contraction.
A union or gap between adjacent parts of a building, structure, or concrete work that permits the relative movement caused by temperature changes to occur without rupture or damage.
A joint between parts of a structure or machine to avoid distortion when subjected to temperature change.
A pipe coupling which, under temperature change, allows movement of a piping system without hazard to associated equipment.
Designed to permit the expansion or contraction due to temperature changes. It generally extends through the entire structure from the footings to the roof.See also: Joint
1.A joint or gap between adjacent parts of a building, structure, or concrete work which permits their relative movement due to temperature changes (or other conditions) without rupture or damage.
2. An expansion bend.