トラストテクノ List of Products and Services

The "Polyethylene Compact Pipe Method" involves pulling a C-shaped high-density polyethylene pipe, wound on a drum, into an existing pipe through a manhole. It is restored to a circular shape using steam heating and compressed air, tightly adhering to the existing pipe, and is a method for rehabilitating aging existing pipes. The method is primarily designed for construction with diameters ranging from φ200 to φ350mm. It possesses self-supporting pipe strength and has a high elongation rate of over 350% at the time of fracture, making it capable of accommodating ground deformation and bending caused by earthquakes and ground subsidence. Since the rehabilitation material itself is resistant to breaking and cracking, it is suitable for seismic retrofitting. 【Features of Polyethylene Compact Pipe】 ■ Uses polyethylene that is very stable in quality and environmentally friendly ■ Rehabilitation material that can be used not only for sewer systems but also for water supply systems ■ Easy quality control of materials allows for speedy construction ■ Capable of accommodating ground deformation and bending caused by earthquakes and ground subsidence ■ Has the ability to conform to existing pipes *For more details, please refer to the PDF document or feel free to contact us.

• Special Construction Method

The "P-Mounting Lining Method" is a technique for repairing mounting pipes using polyethylene resin materials that excel in chemical resistance, abrasion resistance, and elongation. Rehabilitation materials (CPI pipes) are inserted from the mass side and integrated with the main pipe (polyethylene pipe) using welding machinery. Additionally, a gap may occur between the mounting pipe and the CPI pipe; however, since the CPI pipe has a load-bearing strength equal to or greater than that of PVC pipes (nominal diameter φ100), it is considered standard practice not to require backfilling. 【Features】 ■ Uses polyethylene resin materials ■ Repairs mounting pipes ■ No backfilling required ■ Obtained construction technology review certification in March 2015 *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method

The "P-Fine Method" is a rehabilitation method for sewer pipes that can shorten construction time and improve workability. As a rehabilitation material, it uses a reinforced polyethylene pipe called "P-Fine Pipe." By enhancing self-supporting properties and using a non-woven fabric (non-woven filling material) with a polyethylene coating on the inner surface instead of traditional filling materials in the gap between the existing pipe and the P-Fine Pipe, stable quality can be ensured. 【Features】 ■ Enhances self-supporting properties ■ Ensures stable quality ■ Achieves shorter construction time and improved workability ■ Uses reinforced polyethylene pipe "P-Fine Pipe" as the rehabilitation material ■ Obtained construction technology review certification in March 2015 *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method

The "PML method" is a sewer manhole rehabilitation technique that takes into consideration the surrounding residents and the contractors. A polyethylene liner, which has a low environmental impact, serves as a corrosion-resistant membrane that covers the inner surface of the pipe. Since it does not use large equipment, the noise generated during the work is minimal, and no harmful organic solvents are used, providing a healthy environment for those performing the work. [Features] ■ Stable quality ■ High acid resistance ■ Wide applicability ■ Consideration for the environment ■ Compact work with minimal noise *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method

The "PFL method" involves attaching a lining material to the inner surface of existing aging pipes, followed by the installation of PFL panels made of high-density polyethylene. High-strength, high-flow mortar is then injected between the existing pipe and the PFL panels to rehabilitate the aging pipes. The expansion and strength restoration of the surface material are effective even against level 2 seismic motions, and it has excellent chemical resistance, improving the durability of the rehabilitated pipes. Additionally, the PFL panels of the surface material possess excellent water tightness, preventing the ingress of water. 【Features】 ■ Restores strength equivalent to or greater than that of new pipes ■ Approximately 30 times the wear resistance of rigid PVC ■ PFL panels with excellent water tightness as surface materials ■ Superior chemical resistance, enhancing the durability of rehabilitated pipes ■ Effective against level 2 seismic motions due to the expansion and strength restoration of the surface material *For more details, please refer to the PDF document or feel free to contact us.

• Special Construction Method

This catalog is a comprehensive guide from FRP Support Service Co., Ltd., primarily focused on underground buried pipe "investigation, pipeline rehabilitation, and water stop construction" for sewer pipes and power conduits. It is divided into five sections, mainly centered on sewer pipe rehabilitation, including sewer manhole rehabilitation and repair of connection pipes. The methods featured excel in seismic resistance, water tightness, and abrasion resistance. Additionally, we have obtained "Construction Technology Examination Certification" for each method in both 2014 and 2015, and we confidently present them. [Contents] ■ PFL Method ■ PML Method ■ Polyethylene Compact Type Method ■ P-Connection Lining Method ■ P-Fine Method *For more details, please refer to the catalog or feel free to contact us.

• Renovation and repair methods