Bridge joint construction

Details Bridge joint construction Bridge joint construction

E - Fixed Constructions

01

C

14/13, 94/16

E01C 11/02 (2006.01) E01C 23/02 (2006.01) E01C 23/06 (2006.01) E01D 19/06 (2006.01)

Patent

CA 2036673

ABSTRACT A method for constructing a bridge joint in a channel (13) overlying an expansion joint (5) involves lining the channel with a thermoplastic asphaltic elastomeric binder (26) followed by successive applications of layers (28, 30) of aggregate and binder mixture wherein the thickness of each layer is restricted to about the maximum dimen- sion of the aggregate in the layer. Care is taken to insure that both the binder and the aggregate are hot when the layered joint is formed to insure good bonding between layers and with the roadway material. The aggre- gate of each layer (28, 30) is raked to project upwardly from the mass of the layer before a subsequent layer is applied to enhance the interlock between layers. A final layer (32) containing smaller aggregate is applied at the joint top and the joint is then sealed and rolled to form an integrated, resilient load bearing structure.

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