Roadway expansion joint and seal

An expansion joint and seal adapted to span and seal adjacent structural members such as adjacent roadway sections and the like, and comprising

• a pair of longitudinally extending side rails disposed in a parallel, laterally spaced-apart relationship, said rails having upper surfaces, opposing faces, and a socket of generally C-shaped cross-sectional configuration formed in each of the opposing faces and extending along the length of the rails, each of said sockets including a generally flat inner wall,
• an elongate flexible membrane extending longitudinally between the rails and spanning the space therebetween, said membrane comprising a central web portion and ear-like transverse edge portions extending outwardly along respective sides of the web portion, each of said edge portions being solid in cross-section and mounted within and substantially conforming to the internal configuration of respective ones of said C-shaped sockets, and including an outer surface having a portion in direct opposing contact with the inner wall of the associated socket and a recess formed in the outer surface and defining a pocket between the edge portion and said inner wall which extends along the length of the membrane and side rails, each of said recessed being disposed at a medial location along the transverse dimension of the edge portion and being of a size sufficient to permit the edge portion to laterally flex to facilitate assembly thereof into the associated socket, said web portion being joined to each edge portion on the side thereof opposite its outer surface and at a medial location along the transverse dimension thereof and so that each edge portion extends outwardly in the transverse direction beyond the adjacent web portion on each side of the edge portion.