Repair of the drainage connection and main pipe with a strong integrated method: "FRP Internal Reinforcement Method."
Partial repairs of steps, pipe misalignments, joint misalignments, cracks, etc. in the drainage pipes. Extension of the lifespan of sewer systems, agricultural water, industrial water pipes, etc. (light curing, heat curing).
The FRP internal reinforcement method (light curing) is a technique for partially repairing unevenness, pipe wear, joint misalignment, cracks, and other issues that occur in sewer pipelines. The repair material is attached to the construction machine and is introduced from a nearby existing manhole, then transported to the targeted defective area. Next, the repair material is pressurized and adhered to the pipe wall, and by using a heater or ultraviolet lamp built into the construction machine for thermal curing or light curing, a high-strength FRP pipe is formed. [Applications] ● Extending the lifespan of aging or damaged sewer systems, agricultural water, industrial water pipes, etc. ● When repairs are desired only for specific areas rather than the entire span. ● When the differences between sound and deteriorated sections can be managed. ● When costs need to be kept as low as possible.
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basic information
【Features】 ● Depending on the purpose of repair, you can select the repair materials. Standard (Type I, II, III, and integrated type compatible with rehabilitation pipes) ● The use of vinyl ester resin and acid-resistant glass fibers provides excellent corrosion resistance, chemical resistance, and strain corrosion resistance. ● The repair materials comply with the quality standards of Type D anti-corrosion materials set by the Japan Sewage Works Agency. ● They have strength to withstand external and internal water pressure. ● They have wear resistance equivalent to that of rigid polyvinyl chloride pipes for sewer systems. ● They do not impair the flow capacity of the sewer pipes. ● The repair materials are made of high-strength, durable materials that are equivalent to or exceed the specifications for main pipe rehabilitation (50-year specification). ● The construction equipment is compact, resulting in shorter construction time per location and cost-effectiveness.
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Applications/Examples of results
【Purpose】 ● Extending the lifespan of aging or damaged sewer systems, agricultural water, and industrial water pipes ● When repairs are desired for specific sections rather than the entire span ● When the differences between healthy and aging sections can be managed ● When there is a desire to keep costs as low as possible
Company information
Since its establishment, our company has played a role in national construction, primarily focusing on the "ground improvement field" with our unique grouting method. Subsequently, in response to the changes in social infrastructure development, we have refined our technologies to adapt to the needs of the times and, at times, acquired new ones to expand our business scope. As a result, we have now established three main pillars: "ground improvement business," "slope disaster prevention business," and "pipeline business."
