| AMerik Engineering, LLC | 2600 Ainsley Ct. Marietta, GA 30066 770-924-2899 |
| Fiber Spot Specifications |
| Specifications for installation of FIBER Spot Repair System Sectional Cured in Place Pipe Intent: These specifications include requirements for design, materials, equipment and labor necessary to renew deteriorated sections of gravity pipelines by installation of a sectional FIBER Spot Repair Liner. Reference Specifications: This specification references American Society for Testing of Materials (ASTM) standard specifications, which are made part hereof by reference and shall be the latest edition and revision thereof D543 Testing Method of Plastics to Chemical reagents. D578 Standard Specifications for Glass Fiber Strands. D790 Test methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electric Insulation Materials. D 1600 Abbreviations o f Terms Relating to Plastics. D5813 Standard Specifications for Cured-in-Place Thermosetting Resin Sewer Pipe. D2019 Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the pulled in Place Installation of Glass Reinforced Plastic (GRP) Cured In Place Thermosetting Resin Pipe (CIPP) F412 Definitions of terms Relating to Plastic Piping Systems. F1216 Standard Practice for Rehabilitation of Existing Pipelines and Conduits by Inversion and Curing of a Resin Impregnated Tube. Reference is further made to NASSCO Standard: Recommended Specifications for Sewer Collection Systems Rehabilitation. General Corrosion Requirements: The finished sectional liner shall consist of materials, which will be chemically resistant to exposure to domestic sewage. Fiberglass materials shall be corrosion resistant E-glass (Advantex®) Resin shall be Epoxy with 100% solids and suitable for impregnation of fiberglass. Liner Construction: Manufacturing the Spot Repair shall consist of a fiberglass sandwich construction, which ensures uniform high strength along the circumference and an internal resin rich surface. Liner Dimensions: The dimensions of the liner shall be fabricated to a size that when installed, will neatly fit the circumference of the existing conduit. The required wall thickness shall be based on the recommendations of ASTM 1216. XI. Liner installation: The fiberglass tube shall be encased in tubular foils and saturated with the Epoxy resin. Following the impregnation the external foil shall be shortened to expose at least 12 inches of the impregnated material by the repair ends. The internal foils shall extend sufficiently over the ends of the fiberglass material to create a seal towards resin migration during the curing process. Smaller amounts of resin, which create a smooth transition to the existing pipe, are acceptable. The internal foil together with suitable end manifolds creates an inflatable chamber and allows the repair to be pressed towards the wall of the existing pipe. The repair shall be positioned over the section of pipe to be repaired and inflated to a pressure, which ensures a tight fit towards the existing pipe and seals off infiltrating water. The positioned repair shall be heated by a suitable steam source to ensure a fast reaction in the Epoxy resin. Heat and pressure shall be maintained until the resin is completely cured. Finally all internal inflation foils shall be removed to expose the resin rich Epoxy surface. Bypassing: The Contractor shall be responsible for bypassing of sewage during installation. In cases where temporary back up of sewage is accepted as replacement for bypassing, the contractor is responsible for all damage caused by the back up. Deviations: The Contractor shall submit his price proposal for the appropriate length and thickness in the Proposal Section. The Deterioration of sewers is an ongoing process. Should preconstruction inspections reveal the sewers to be in substantial different conditions from those in the design considerations, the Contractor shall request such changes in liner thickness and repair length as needed and support such a request with design data. The deviation, if approved, shall be reflected in an appropriate change in the cost of the repair as shown in the optional portion of the Proposal Section. |