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Inspection is possible just by placing the probe on the designated part of the anchor! A non-destructive testing device that can inspect and determine the bonding condition of post-installed anchors.

Main Body: Transmission and Reception Device Type: Frequency Automatically Variable, Ultrasonic Pulse Echo Method Variable Frequency Range: 3MHz to 5MHz Maximum Detection Distance: 1000mm External Dimensions: 275mm ✖ 240mm ✖ 115mm Probe: For Metal Anchors, Half-Moon Shape, 5MHz For Adhesive Anchors, Disc Shape, 5MHz *For details, please download the PDF or contact us.

We propose a system that excels in construction and inspection capabilities to prevent third-party damage caused by falling objects!

【Optional Items】 ■Shackle ■Thimble ■Stainless Steel Wire ■Stainless Steel Sleeve ■Simple Lock ■Scrum Clamp (SC) *For more details, please refer to the PDF document or feel free to contact us.

A tunnel interior sheet that can be applied simply by peeling off the release film and sticking it on with adhesive.

【Main Performance】 - Peel adhesion (JIS Z 0237) at peel angles of 90 degrees and 180 degrees: 8N/24mm or more - Flame retardancy (NEXCO Test 738): Flame extinguishing time under 30 seconds, upper edge burn spread within 600mm - Gas toxicity (Building Standards Act notification): Mouse behavior cessation time of 6.8 minutes or more - Initial reflectivity (JIS Z 8722): 60% or more - Liquid resistance: 5% nitric acid, 5% sulfuric acid, saturated calcium hydroxide, 3% sodium chloride; immersion for 30 days with no blistering, cracking, or peeling - Weather resistance (JIS K 5600) using xenon lamp method for 1200 hours with no blistering, cracking, or peeling 【Construction Flow】 1) Substrate preparation 2) Layout marking 3) Primer application 4) Sheet installation (including edge sealing) 【Guidance Line】 - Sheet for guidance line with a width of 20cm

Construction technology certification acquisition method! No need for mortar mixing or installation of injection holes on site!

It is used for seismic reinforcement of civil engineering structures such as water and sewage facilities, sluices, bridge abutments, box culverts, and weirs. ■ The use of RMA for reinforcement improves shear strength. 【Five Assurances of RMA Method】 ■ Environmental Friendliness ■ Safety ■ Non-combustibility ■ Workability ■ Cost-effectiveness - RMA stands for Reinforcement by Mortar Anchor, which refers to shear reinforcement rebar that performs post-installed shear reinforcement, along with the capsule-type inorganic mortar used to anchor it. - A capsule containing premixed mortar is used as the anchoring material. - The RMA is immersed in water for 2 to 5 minutes before being inserted into the hole, and the reinforcement rebar is driven to the specified dimensions using a hammer drill or chipper to complete the installation. - It has received construction technology certification from the Public Interest Incorporated Foundation Civil Engineering Research Center (Certification No. 1203). *For more details, please refer to the PDF materials or feel free to contact us.

Post-installed anchor non-destructive testing device

The built-in accelerometer in the hammer displays the magnitude of acceleration and the duration of acceleration generated when striking the test object as a waveform. It visualizes the presence or absence of a delay in the acceleration due to reaction force against the acceleration at the moment of impact, allowing for the evaluation of the integrity of post-installed anchors and the looseness of nuts. ● Waveform measurement: Sampling speed 0.5μs, measurement wavelength 2ms ● Hammer: 420 grams (standard hammer) ● Power supply: Supplied from the USB of the PC, maximum 350mA ● PC connection: Connects to Windows PC via USB ● Measurement data: Saved as text on the PC ● Accessories: Storage case/USB cable/tablet PC

The expansion-type rock bolt made of reinforcing steel pipes developed by K.F.C. Co., Ltd. contributes to the longevity of tunnels.

When high-pressure water is injected using a dedicated high-pressure water injection system, the expansion section of the rock bolt inserted into the ground expands along its entire length and becomes anchored in the ground. By providing a male thread at the mouth, it becomes possible to tighten the lining concrete with a nut, which is expected to enhance the effectiveness of ground support. 【Accessories】 Injection adapter High-pressure water injection system for expansion Anti-loosening nut "K nut" Pipe for lining concrete protection Multi-functional G type (tip cap detachable type)

No need for downtime! We have developed a method to repair supports through partial construction.

【Construction Procedure】 1. Remove existing (steel) cap from the post 2. Inspect the inside of the post 3. Cut and remove connection bolts 4. Install GPR steel pipe and connection bolts 5. Construct GPR steel pipe 6. Install post cap and complete *For more details, please refer to the PDF document or feel free to contact us.

Torque management nuts that prevent human error. They help prevent forgetting to tighten and keep the tightening torque within the appropriate range.

There are various types of locking nuts with different anti-loosening functions in the world. All locking nuts exhibit their anti-loosening function when tightened to the appropriate torque value. However, if the operator forgets to tighten them, the anti-loosening function will not be activated. Conversely, over-tightening can lead to issues such as seizing. To prevent human error in advance, KFC has developed a nut that combines unprecedented resin products with steel products to add torque management functionality. A polycarbonate cap is set with the locking nut. When the specified torque is reached, the contact area between the inside of the cap and the nut breaks, causing the cap to spin freely and detach, thus completing the installation at the proper torque value. The Torcia Nut "K" is set with our anti-loosening K nut. The Torcia Nut "ZK" is set with our washer-equipped anti-loosening K nut.

Existing Tunnel Reinforcement Method Using CFRP Strip Adhesive - Achieving Effective Tunnel Interior Reinforcement with High-Strength CFRP Using Carbon Fiber Sheets and Separators.

In the CFRP method, carbon fiber is sewn with a separator, fixed to concrete with adhesive, and then impregnated to create FRP, allowing for strip placement due to increased strength, resulting in a high reinforcement effect. *Improved Workability By applying the adhesive and impregnating agent in separate processes, it is not dependent on the skill level of the workers. Additionally, because it is a lightweight and flexible material, workability is improved compared to our steel plate bonding method. *Realization of Strip Placement through Increased Strength Compared to our CFRP method, the weight can be increased up to 2,400g/m2, ensuring strength comparable to full bonding even with strip placement. Strip placement allows for monitoring of crack progression after reinforcement. *Expectations for Reduced Construction Time and Cost Savings.