The Job
This grade crossing stabilization project is located in Edison, New Jersey. A precast modular grade crossing (Oldcastle StarTrack) crossing developed significant pavement deterioration. NJDOT directed the railroad to stabilize and lift the panels and then patch the adjacent asphalt.
The Challenge
The grade crossing sees up to 8 trains per day (heavy industrial service), and crosses a four lane arterial highway. So, there wasn’t any allowable downtime. Because of this, traditional cementitious grout was not a viable option. Cementitious grouts generally need hours to reach strength, so can significantly disrupt train schedules, and require long lane closures for vehicles.
The Solution
CJGeo proposed grouting the panels using CJGrout 60NHL. 60NHL is a geotechnical polyurethane grout specifically formulated for heavy applications such as rail and aircraft loads. A CJGeo polyurethane grouting crew mobilized to the site and in fewer than 2 hours onsite restored the affected panels. Another name for this process is concrete raising.
This grade crossing stabilization project did not require ground improvement grouting. The cause of the settlement was the bedding fines washing out, so only shallow grouting was necessary.
Speak With An Expert
Facing a similar challenge to this grade crossing stabilization project? Give us a shout or shoot us a text. Click the state marker for the location of your project for contact info for the appropriate rep.
