utility Grouting
Been There. Grouted That.™
Have a tricky pipe abandonment challenge? Don’t want to dig holes down the middle of a road every 100 feet to dump flowable fill into a pipe? We specialize in long run pipe abandonments. Whether it’s a 4″ conduit or a 96″ sanitary sewer, our project experience of thousands of miles of abandonment helps you reduce risk, reduce cost, and complete projects faster. CJGeo has abandoned up to 5600LF of pipe in a single stretch with no intermediate access points.
Annular Space Grouting
Fundamentals
When a pipeline is no longer in service, it must be properly abandoned to prevent surface subsidence, environmental contamination, and future structural failures. Our pipe abandonment service involves completely filling the decommissioned pipe with a durable, low-density material that provides a permanent and safe solution.
CJGeo performs most abandonment grouting with CJFill-Ultra Lightweight cellular grout. We will occasionally perform abandonment of unique utilities with CJGrout geotechnical polyurethanes.
Experience
CJGeo routinely places more than 100,00 cubic yards of cellular grout a year. Much of this is for abandonment grouting.
Our specialty is large volume, or long run abandonment grouting. Projects range from the Wansley power plant outside of Atlanta, where we placed more than 20,000 cubic yards of grout to abandon 144″ cooling lines, to gas line abandonments requiring grout placement over nearly 2,000 linear feet through 2″ pipe from a single end.
Pipe Abandonment
Fundamentals
When a pipeline is no longer in service, it must be properly abandoned to prevent surface subsidence, environmental contamination, and future structural failures. Our pipe abandonment service involves completely filling the decommissioned pipe with a durable, low-density material that provides a permanent and safe solution.
CJGeo performs most abandonment grouting with CJFill-Ultra Lightweight cellular grout. We will occasionally perform abandonment of unique utilities with CJGrout geotechnical polyurethanes.
Experience
CJGeo routinely places more than 100,00 cubic yards of cellular grout a year. Much of this is for abandonment grouting.
Our specialty is large volume, or long run abandonment grouting. Projects range from the Wansley power plant outside of Atlanta, where we placed more than 20,000 cubic yards of grout to abandon 144″ cooling lines, to gas line abandonments requiring grout placement over nearly 2,000 linear feet through 2″ pipe from a single end.
Pipe & Sinkhole Repair
Fundamentals
When a pipeline is no longer in service, it must be properly abandoned to prevent surface subsidence, environmental contamination, and future structural failures. Our pipe abandonment service involves completely filling the decommissioned pipe with a durable, low-density material that provides a permanent and safe solution.
CJGeo performs most abandonment grouting with CJFill-Ultra Lightweight cellular grout. We will occasionally perform abandonment of unique utilities with CJGrout geotechnical polyurethanes.
Experience
CJGeo routinely places more than 100,00 cubic yards of cellular grout a year. Much of this is for abandonment grouting.
Our specialty is large volume, or long run abandonment grouting. Projects range from the Wansley power plant outside of Atlanta, where we placed more than 20,000 cubic yards of grout to abandon 144″ cooling lines, to gas line abandonments requiring grout placement over nearly 2,000 linear feet through 2″ pipe from a single end.
The Advantages
Risk Reduction
Two typical risks associated with traditional methods of pipe abandonment are:
- incomplete fills due to the physical limitations of flowable fill, and
- those associated with access point excavation, such as utility strikes.
The risk from incomplete fills is primarily related to the difficulty of pumping flowable fill. Since flowable fill relies heavily upon water content to ensure flowability, it is particularly prone to segregation. Aggregate segregation can block a pipe and effectively creating a plug. If the pump can’t overcome the plug, grouting has to stop.
Most utilities being abandoned are typically colocated with other utilities. Therefore, reducing excavation is almost always advantageous. Using cellular concrete virtually eliminates access point excavations due to very long pumping distances.
Cost Reduction
Because cellular concrete reduces the need for digging access points and the time it takes to perform abandonments, it tends to be significantly less expensive than traditional methods.
We perform turnkey abandonments; there’s no need for our customers to coordinate pump services, ready mix companies, etc.
Increase Speed
Our customers are almost always amazed by how quickly abandonments happen compared to self-performing with flowable fill. That 3000LF of 8″ that the owner said needed an access point every 200LF? It’s just 18 minutes of pumping with 25lb/cuft cellular concrete from a single point.