Expansion joint method and system

Details Expansion joint method and system Expansion joint method and system

E - Fixed Constructions

01

C

E01C 11/02 (2006.01) E01C 11/10 (2006.01) E01D 19/06 (2006.01)

Patent

CA 2087936

A method to produce an expansion joint for adjacent roadway slabs having a gap therebetween. A recess is cut or formed into the surface of each adjacent roadway slab to form a pair of recesses parallel to and adjacent to the gap. The recesses are cleaned to a sound, dust-free and rust-free surface. Each recess is coated with a slightly resilient polymer primer to inhibit rusting and corrosion and to form a bonding surface. A mortar mixture of a slightly resilient polymer and aggregate is installed in each recess to form a pair of parallel nosings adjacent to the gap, the nosings being bonded to the roadway slabs. Opposed surfaces of the nosings are primed with a silicone primer. A temporary backing is inserted in the gap between the nosings. An initially liquid silicone sealant is installed between the nosings and on top of the temporary backing which will cure to form a flexible seal.

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