Compaction Grouting
Polyurethane grouts are injected through small steel tubing to depths up to 35’ in stages. As the polyurethane expands, it displaces and compresses the adjacent soil, curing to 95% within 15 minutes.
Been There. Grouted That.®
South Carolina Compaction Grouting
CJGeo performed polyurethane compaction grouting to stabilize new bridge caissons in Columbia, SC. Facing a 20-foot height limit and strict FERC rules, crews used a low-clearance sonic drill rig to inject 3,600 lbs of CJGrout 22SHV, safely encapsulating the affected piers without canal intrusion. Read More >
Pingree Station Polyurethane Grouting
To stabilize a failing retaining wall and new METRA platform at Chicago's Pingree Station, CJGeo performed polyurethane compaction grouting. Meeting a strict 2-million-pound experience requirement, crews injected CJGrout 48NHL in one day, keeping the rail project exactly on track. Read More >
Tunnel Shaft Sinkhole Grouting
A tunnel shaft blowout in Newport News caused flooding and sinkholes, halting excavation. CJGeo crews quickly performed polyurethane compaction grouting. Injecting CJGrout 35NHV61 filled 70 cubic yards of voids, stabilizing the shaft so dewatering and tunneling could resume. Read More >
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