A system and method of repairing a pipe including securing a reinforcing material, such as a dry fiber structure (e.g., a carbon fibers) to the surface of the pipe. A polymeric material is placed on top of the reinforcing material, self-penetrating the dry fiber structure. The polymeric material substantially saturates the reinforcing material and cures to form a reinforced polymeric composite which may increase or restore the pressure rating or operating pressure capacity of the pipe. Optionally, an outer containment component, such as a sleeve, shell, box, wall, outer pipe, and so on, may be installed around the reinforcing material prior to introduction of the polymeric material. In this case, the polymeric material may be placed (i.e., poured) into the interior of the containment component on top of the reinforcing material.

System and method for pipe repair

Thermoplastic shell-like objects are joined or repaired by supporting the area of the object to be treated, applying a preheated, reinforced thermoplastic charge and exerting pressure against the support to seal the desired area.

Method for sealing shell-like thermoplastic objects

This invention is an apparatus and process for the reinforcing of concrete, wood, or steel columns, beams, or structures. The apparatus includes pre-made reinforcing layers constructed of engineering materials having a high tensile strength and a high modulus that are attached, via an adhesive, or fitted to the element in question to create a reinforcing shell exoskeleton thus increasing the column's compressive, shear, bending, ductility, and/or seismic load carrying capacity.

Composite reinforced structures

A system and method of repairing a pipe including securing a reinforcing material , such as a dry fiber structure (e.g., carbon fibers) to the surface of the pipe. An outer sleeve is installed around the reinforcing material . A polymeric material is placed (e.g., poured) into the interior of the sleeve around the reinforcing material . External pressure is applied to the sleeve . The polymeric material substantially saturates the reinforcing material and cures to form a reinforced polymeric composite which may increase or restore the pressure rating or operating pressure capacity of the pipe .

System and method for pipe repair using fiber wrap and polymeric resin

A repair structure for the repair, mainly, of leaking pipelines. The repair structure is a bandage of absorbent material impregnated with a curable resin. The bandage is wrapped round the pipeline to form a hard seal casing when the resin cures. The bandage preferably comprises also an impermeable membrane and a vent to allow leaking medium to escape while the bandage is being applied, with the membrane innermost, and while the resin is curing. The vent comprises a bush cast around a vent sleeve and bonded to the membrane. The resin which is used to form the vent bush and the membrane is the same as that used for the impregnation of the absorbent layer so that such layer will bond to the membrane. The sleeve is removable and can be replaced by a solid plug to seal the vent bush when the rigid seal casing is formed. The casing extends over a gallery in the region of the joint so that it will act as a bellow and accomodate large relative pipe section movements without failing. The joint seal is completed by applying a film of plastics material again preferably of the same resin, to the outside of the impregnated bandage before curing of the resin so that the film will bond to the resin when cured. The film may be wrapped over the vent provided each wrapping is punctured at the vent to allow the medium to continue to escape until the resin has cured.

Repairing leaks in pipelines carrying fluent medium

Upper and lower halves of cocoonlike shell of glass cloth saturated with epoxy resin surrounding the pipe joint, held in place by masking tape, ends and side seams coated with epoxy resin reinforced with crisscrossed glass tape.

Hanford Z High

Papers

Pipe joint cocoon