Pipeline Rehabilitation

CIPP POINT REPAIR

A CIPP repair, also referred to as a point repair or spot repair, is used to rehabilitate a segment of pipe after a localized fault, such as a break or crack, has been detected. Typical repair lengths range from 2’ to 6’ depending on the length of the fault. Multiple repairs can be overlapped for repairs in excess of 6’. Rapid cure times allow the repair to be completed while the pipe remains active and flows are not affected.

CIPP LINING (Cured in Place Pipe)

The CIPP process provides a trenchless option for rehabilitating 4” through 12” diameter pipe. During the installation process a flexible fabric liner, coated with a thermosetting resin, is inserted into the existing pipeline. The liner is then inflated to conform to the shape of the host pipe. Heat and pressure introduced through the portal quickly completes the curing process and minimizes disruptions in service. As with any trenchless repair method, the existing superstructure is left undisturbed.

CCCP (Centrifugally Cast Concrete Pipe)

CCCP is a trenchless process used to rehabilitate damaged storm drain pipe. The CCCP method can be used with any type pipe and is particularly effective in corrugated metal pipe rehab. The interior surfaces of the host pipe are sprayed with a mortar mix specifically designed to provide a seamless, high strength seal and return the pipe to full function.

CCCP pipe lining can be applied to pipes from 30” – 120” diameter with a maximum of 500’ per segment. During the installation phase the pipe must be dry. After the last application by the spincaster, the pipe is ready for flow in 24 hours and will reach full cure in 28 days.

PIPE BURSTING

Pipe bursting is a well-established method for trenchless replacement of damaged and/or undersized sewer pipes. The bursting head is inserted into the existing pipe drawn by a hydraulic pulling unit. As the impact of the bursting head shatters the host pipe and imbeds it in the surrounding soil, the new pipe (attached to the back of the bursting head) is pulled through the void and the pipe is replaced in one action.

DYNALINER PVC

Dynaliner PVC Deform/Reform pipe lining provides a smooth, seamless surface for pipeline rehabilitation in any type of host pipe from 4” to 36”. No chemicals are used during installation making Dynaliner an excellent choice in storm drain and culvert repair where environmental concerns are a priority. The liner tightly conforms to the contours of the host pipe and proves superior in resistance to corrosion and chemical damage.

In cases where the invert and the soil beneath have washed away, self-leveling grout is injected into voids below the eroded flow line to provide a smooth base prior to lining. Jagged portions of the pipe will be reshaped with a snag jack.

The liner can be modified during installation to flare at the pipe end creating a seamless flange for pressurized pipe applications.

NEO-TAP

Neo-Tap is a trenchless solution to eliminate infiltration caused by faulty lateral-to-main connections. A forked sleeve is positioned and then expanded to cure at the site of the defective connection. Quick cure times and remote installation make this repair method particularly attractive.