Abstract: A method and system for evaluating the interior surface and exterior wall conditions of a pipeline while also dynamically installing a repair coating in a pipeline, such as an underground water pipeline. The system is towed into the pipeline and drawn back therethrough. As the system is drawn back, one module in the system evaluates the surface condition of the interior of the pipe and another module evaluates the structural condition of the wall of the pipe. Based on the evaluation data obtained from the two modules an epoxy material is applied to the interior surface of the pipe using a spin cast machine that is drawn behind the two modules. Preferably, a layer of epoxy is applied to the interior surface of the host pipe to the appropriate thickness based on the pipe condition as determined by the two modules.

Abstract: A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

Abstract: A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

Abstract: A composition and method for spray-applying a two-part, self-setting composition containing a dopant that provides a hazard shielding component and is particularly adapted for delivering the components of the composition at a temperature that promotes their spray application as well as a self-setting reaction. The method includes selecting a self-setting compound that is adapted for curing in place once applied, the self-setting compound including at least one dopant material; and applying the compound to a hazard to be encapsulated such as a radiological, lead, asbestos, or PCB. Alternately, a self-curing compound includes a multi-part compound which, upon a mixing of the parts, chemically reacts and cures, and at least one dopant material dispersed into at least one of the parts, wherein the dopant material is selected for providing radiation shielding upon application of the compound.

Abstract: A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

Abstract: A method for repairing in-ground tunnel structures including the steps of: a) cleaning the structure to be lined; b) preparing a sheet of composite liner onto a roller; c) applying resin to the wall of the tunnel; d) dispensing said sheet into said resin using said roller and e) bedding the liner composite into the applied resin. The process can then be repeated along the length of the tunnel in a sheet by sheet fashion.

Abstract: A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

Abstract: A heating assembly that receives pre-loaded two part epoxy cartridges and heats them in a controlled manner for spray application. Further, the heating assembly is modular in nature such that a plurality of pre-loaded cartridges can be efficiently loaded therein and uniformly heated. The heating assembly is a bag of durable construction and is structured to be heat resistant. The bag has a bottom, sides extending upwardly from the bottom and a operable panel at the top thereof to allow access to the interior of the bag. At least one wall of the bag includes a heater panel formed therein. More preferable more than one wall of the bag includes a heat panel therein. The panels are configured and arranged to impart heat to the interior of the bag while preferably being insulated about the exterior.

Abstract: An improved cartridge structure that both heats the materials contained therein and provides for enhanced structure such that the bypass leaking of the low viscosity heated components is avoided. The cartridge is preferably formed from a rigid material such as reinforced fiberglass tubing. The wall of the cartridge is then wrapped in a flexible heating element or has a heating element cast directly in the wall thereof. The heating elements preferably heat the interior contents and epoxy cartridges to between 150 degrees and 180 degrees Fahrenheit. The wall structure may be of single wall construction with the heaters embedded therein or of a double wall construction such that the heaters are contained between an inner and outer wall. Further the wall construction is preferably formed to withstand the pressures applied when spray applying the epoxy contained therein to prevent the tube wall deformation and resulting blow by leakage.

Abstract: A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

Abstract: A modular plug for installation into large diameter pipelines that provides a reliable and secure seal within the pipeline to be serviced thereby increasing the safety of the people working on the secured side of the plug. The plug is modular in construction and suited for easy installation within large pipelines. The plug is generally formed as a large circular plate formed from modular sections. Along the division lines the plug pieces include grooves and a gasket therein. Reinforcing jacks extend outwardly from the plug and exert pressure against the pipeline to retain the plug geometry and position. Also, around the periphery of the plug is shown an inflatable rubber seal.

Abstract: A method and system for evaluating the interior surface and exterior wall conditions of a pipeline while also dynamically installing a repair coating in a pipeline, such as an underground water pipeline. The system is towed into the pipeline and drawn back therethrough. As the system is drawn back, one module in the system evaluates the surface condition of the interior of the pipe and another module evaluates the structural condition of the wall of the pipe. Based on the evaluation data obtained from the two modules an epoxy material is applied to the interior surface of the pipe using a spin cast machine that is drawn behind the two modules. Preferably, a layer of epoxy is applied to the interior surface of the host pipe to the appropriate thickness based on the pipe condition as determined by the two modules.

Abstract: A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

Abstract: A method for installing a liner in a large diameter pipeline. In accordance with the method, the interior surface of the pipeline to be repaired is prepared by removing excess debris and dirt. A repair composite is brought into the tunnel or pipeline in a dry state. Once the dry repair composite is laid out in the structure to be repaired the repair composite is folded out and saturated and wetted out with high pressure spray guns. The spray guns are employed within the structure and an appropriate resin material is applied as required to wet out the fiber material. A calibration bladder is inflated and holds the repair composite in place against the pipeline walls until the epoxy resin is fully cured. Once the process is complete, the bladder tube is retrieved out of the system leaving the repair composite as a stand-alone system.

Abstract: A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

Abstract: A method for repairing in-ground tunnel structures including the steps of: a) cleaning the structure to be lined; b) installing a suspension cable along the top of the tunnel; c) suspending sheets of liner composite along the suspension cable; d) applying resin to one side of the tunnel; e) bedding the liner composite into the applied resin; f) removing suspension cable once the top edge of the resin and liner composite becomes self-supporting; g) applying resin to the other side of the tunnel; and h) bedding the liner composite into the resin. The process can then be repeated along the length of the tunnel in a sheet by sheet fashion.