Roadway expansion joint

摘要

A roadway sealed expansion joint between roadway sections spaced by an expansion slot, the roadway sections having recesses adjacent and extending longitudinally of the slot. A metal plate bridges the slot and is secured to the bottom of the recess in one of the sections and is movable relative to the bottom of the recess in the other of the sections. Overlying the metal plate is a unitary elastomeric slab with its upper surface aligned with the upper surfaces of the concrete sections and with its edges bonded to the sides of the recesses, this elastomeric slab having a center premolded portion of relatively high elasticity and edge portions which are molded in situ and which are of relatively low elasticity.