NCS Inc. has expanded into Bridge Joint Repair. As large vehicles pass over a bridge, their force slightly moves the bridge structure. If joints are not cut into the asphalt, the bridge asphalt will crack where the pressure accumulates. Therefore, after a bridge has been constructed or repaired and fresh placement of asphalt has cured, approach and expansion joints must be cut into the asphalt in order to relieve the stress that builds up when vehicles pass over the bridge decking and approach designed slabs. This requires formed grooves to be cut into the asphalt sections. These grooves are filled with hot rubber sealant or DOW-CORNING 902. The application of these sealants provides a controlled stress relief from the bridge decking and the approach concrete slabs. NCS Inc. also repairs and installs existing or new expansion seals that are engineered for expansion movement.

NCS has specially designed equipment to grind down the deflected asphalt and concrete areas surrounding each expansion and approach joint. If pressure continually builds in certain areas, the asphalt begins to lift and creates an elevated stretch of asphalt. By grinding down these deflective areas, the bridge deck surface becomes more level, and less stress is applied to the joints and the bridge. Vehicles will also experience less of a “speed bump effect” while passing over the jointed areas. This process will increase the conformity and function of the bridge deck surface, providing a simple cost-saving solution opposed to the expensive cost of replacing the asphalt or concrete.

Bridge Deck Sealing

NCS Inc. has perfected a method of bridge deck sealing by protecting the deck asphalt. We provide a 25-45mm angled groove along the perimeter barrier walls of the entire deck asphalt surface including a routered groove along the ductal concrete. The bridge is then completely crack sealed including the bridge asphalt deck surface. This process protects the under layer of the bridge deck concrete from moisture infiltration.