Expansion joint cap

Details Expansion joint cap Expansion joint cap

E - Fixed Constructions

01

C

E01C 11/04 (2006.01) E01C 11/10 (2006.01) E04F 15/02 (2006.01)

Patent

CA 2187851

A unitary resilient expansion joint insert member is provided for insertion into the expansion joint between adjacent concrete floor slabs. Such member is of substantially-constant transverse cross-section for filling an expansion joint gap which is formed between adjacent concrete flooring slabs. The insert member consists essentially of a cap portion having a convexly curved upper surface and a concavely curved lower surface. The lower surface of the cap portion forms a substantially-planar surface, which is generally parallel, and adjacent, to the surface of the adjacent concrete slabs, when the insert member is arranged in the expansion joint. A projection portion which is integral with the cap portion extends downwardly from the lower surface of the cap portion to a lower end. The projection member consists of parallel, planar opposed walls extending perpendicularly to the lower surface of the cap and an anchor portion having a pair of horizontal planar surfaces. Each horizontal surface extends perpendicularly to and in opposite directions from, the walls, to respective outer edges. The anchor portion also has planar angle surfaces extending respectively from the outer edges of the horizontal surfaces to a common point at the lower end of the projection members. The walls and the anchor portion have the shape of an arrow. The resilience of the cap portion provides a slight upward force on the projection member to exert a positive, engaging force that tends to lock the projection member in the gap.

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