ケー・エフ・シー List of Products and Services

"MORSCHE" allows you to create mortar just by soaking it in water. No measuring is needed, and mixing is easy. It's perfect for tasks like bricklaying. It is suitable for pothole repairs and corner chip repairs. The color is a neutral gray tone. 【Features】 ■ Just soak in water ■ No measuring required ■ Easy mixing ■ Hands stay clean *For more details, please refer to the PDF document or feel free to contact us.

The "IBO-Z" is a hollow lock bolt that features R32 threads rolled along its entire length, making it very easy to handle on-site. It is effective not only as a self-drilling bolt but also as an injection bolt utilizing its hollow design. Additionally, the use of ZAM has significantly improved its corrosion resistance. It is suitable for a wide range of applications, including pattern bolts, fore-poling, and tunnel repairs. 【Features】 ■ Pursues cost-effectiveness through bit selection based on the target ground. ■ Reduces cycle time by allowing drilling and bolt insertion to be performed simultaneously. ■ R32 rope threads are rolled along the entire length, ensuring slime discharge performance and stable adhesion performance. ■ Adaptable to a wide range of applications. *For more details, please refer to the PDF document or feel free to contact us.

This product is a waterproof material that combines flexibility, making it difficult for gaps to remain around drainage materials even in the case of multi-layer sheets. To extend the lifespan of the covering concrete, it ensures high drainage performance even after mortar filling, in preparation for increased water inflow due to future fluctuations in groundwater levels or the creation of new water pathways due to earthquakes. 【Features】 ■ Despite being a multi-layer sheet, it has flexibility and good workability for end processing. ■ A permeable layer is maintained even after mortar filling, ensuring high drainage performance. *For more details, please refer to the PDF document or feel free to contact us.

The "Egg Pack Drain" is a high drainage performance drainage material that has a proven track record in measures against groundwater treatment for underwater tunnels where clogging of the water flow section is a concern. Since it fills in the recessed areas, it has excellent pressure resistance and is suitable for methods such as the "FILM method." Additionally, it is lightweight and flexible, making it easy to work with. 【Features】 ■ Large water flow area, making it difficult for clogging due to free lime and other substances ■ The joint sections only need to overlap by about two peaks, providing excellent workability ■ Made of HDPE (high-density polyethylene), it excels in chemical resistance, bacterial resistance, and impact resistance ■ Lightweight and flexible, offering excellent workability *For more details, please refer to the PDF materials or feel free to contact us.

The "Hyper Panel Signal Sheet" is a high-performance waterproof sheet that combines high drainage capability, cushioning effect, and a signal layer that alerts to damage. By incorporating a signal layer into the waterproof layer, it has become easier to visually detect any damage. The three-dimensional mesh long fiber non-woven fabric has approximately 40 times the drainage performance compared to regular non-woven fabric with a thickness of 3mm. 【Features】 ■ Adoption of a signal layer in the waterproof layer ■ Signal layer that alerts to damage ■ Easy visual detection of damage *For more details, please refer to the PDF document or feel free to contact us.

The "Hyper Panel SP/SPG Sheet (IH Type)" is a waterproof material for electromagnetic induction welding with high drainage performance. By adopting a newly developed special three-dimensional mesh structure for the IH weld method, it achieves strong and stable welding fixation strength while maintaining high drainage performance. Therefore, it can be adapted for various applications, such as fixing the intermediate parts of wide sheets and securing the sheet material in corner areas of box cutouts. 【Features】 ■ Adoption of a special three-dimensional mesh structure for the newly developed IH weld method ■ Strong and stable welding fixation strength while maintaining high drainage performance ■ Adaptable to various applications *For more details, please refer to the PDF materials or feel free to contact us.

"FACESS" is a sliding coupler system for the long-length cut wing reinforcement tool "Me-fix." When a certain amount of load is applied, a mechanism is provided that allows the load to be released and slide in the axial direction. The dedicated coupler releases and slides under a load of 200kN to 300kN, and can then maintain a tensile strength of about 400kN. The sliding at that time allows for forward extrusion displacement, and effects such as damping and ground deformation tracking can be expected. [Features] - A mechanism that releases the load and slides in the axial direction when a load is applied - Maintains strength after sliding - Damping effects and ground deformation tracking effects can be expected *For more details, please refer to the PDF document or feel free to contact us.

"RBS-USR (Silica Resin)" is a rock solidification material developed for the improvement and modification of tunnel ceilings, faces, and slopes. It exhibits rapid strength development and provides sufficient effectiveness even within limited improvement areas. Additionally, the solidified material is highly safe and has excellent flame resistance. It can be widely used in various applications, including the FIT method, fore-poling method, and AGF method, which are auxiliary methods for tunnel excavation. 【Features】 ■ Rapid strength development ■ Sufficient effectiveness even in limited improvement areas ■ Solidified material is highly safe with excellent flame resistance ■ Widely applicable in various uses *For more details, please refer to the PDF materials or feel free to contact us.

The "KFC Tightliner" is a high-performance geomembrane suitable for tunnel waterproofing work, featuring excellent workability in terms of followability, weldability, and damage resistance. The waterproof sheet material uses VLDPE (very low-density polyethylene), which has excellent followability, weldability, and damage resistance. Additionally, the white layer (signal layer) that is completely molded into the black waterproof sheet makes it easy to detect any damage to the sheet by exposing the internal black layer in the event of a scratch. 【Features】 ■ Excellent basic material for the water-tight waterproofing system ■ The sheet material is made of VLDPE (very low-density polyethylene) with excellent followability, weldability, and damage resistance ■ The white signal layer makes it easy to identify damaged areas of the sheet during construction ■ The backing cushioning material can be selected from a wide variety, ranging from long fiber non-woven fabric to highly permeable three-dimensional mesh *For more details, please refer to the PDF document or feel free to contact us.

The "Hyper Panel SS Sheet" is a waterproof sheet with cushioning material designed for NATM tunnels, equipped with functions that demonstrate excellent workability and construction effectiveness under harsh conditions. Since only non-woven fabric and intermediate backing tape are nailed, it can be installed without creating holes in the waterproof sheet. The waterproof sheet made of EVA resin, which has excellent elongation properties, is point-bonded to the non-woven fabric, which serves as the backing material. This ensures that the elongation properties of each material are not compromised, allowing for excellent conformity to the uneven surfaces of sprayed concrete. 【Features】 ■ High waterproofing performance ■ Excellent drainage performance ■ Excellent conformity ■ Excellent damage resistance ■ Excellent workability *For more details, please refer to the PDF document or feel free to contact us.

The "Fit Liner Type-S" is a waterproof sheet for tunnels that has been specially processed on the surface of an EVA sheet (thickness 0.8mm) to chemically bond with fresh concrete. It was developed for drainage-type tunnels to prevent water pathways at the interface between the waterproof sheet and the lining concrete, thereby preventing water leakage from the lining. The surface of the black sheet has a white layer that acts as an interlayer, allowing any damage to the waterproof sheet during construction to reveal the black color of the damaged area within the white surface, providing a signal layer function that makes it easy to visually detect damage. 【Features】 ■ Developed for drainage-type tunnels to prevent water leakage from the lining ■ Signal layer function that makes it easy to visually detect damage ■ Effective in areas where manual welding with hot air is frequently used, increasing the risk of water leakage *For more details, please refer to the PDF document or feel free to contact us.

"Fitliner" is a chemically adhesive waterproof sheet developed for water-tight (non-drainage) tunnels using the New Austrian Tunneling Method (NATM). By chemically bonding the surface of the waterproof sheet with the lining concrete, it prevents water leakage from damaged areas of the waterproof sheet from spreading. Additionally, made from flexible and highly stretchable EVA resin, it conforms well to uneven sprayed surfaces. With a thickness of 2.0 mm, it withstands high water pressure and excels in heat welding on-site. 【Features】 ■ The special surface EVA resin chemically bonds with the concrete ■ Prevents water leakage from wandering at the interface between the waterproof sheet and the lining concrete, stopping it from spreading extensively ■ Compatible with heat welding to standard tunnel waterproof sheets ■ The signal layer is laminated, making it easy to detect damaged areas during construction *For more details, please refer to the PDF document or feel free to contact us.

The "Signal Washer" is a plate developed to detect ground displacement caused by high earth pressure. It is set with a standard rock bolt, and when the axial force generated in the bolt exceeds a certain level, the coating of the special paint applied to the washer peels off, allowing for easy visual confirmation of deformation. 【Features】 ■ 24-hour real-time condition monitoring ■ Easy installation ■ Visual representation of condition changes ■ No electricity required ■ Patent registered ■ NETIS registered KT-180047-A *For more details, please refer to the PDF document or feel free to contact us.

The "IBO Lock Bolt" is a hollow lock bolt with R32 threads rolled along its entire length, making it very easy to handle on-site. It is effective not only as a self-drilling bolt but also as an injection bolt utilizing its hollow structure. It can be applied to a wide range of uses, including pattern bolts, fore-poling, tunnel repairs, LW urethane, and slope reinforcement. 【Features】 ■ R32 rope threads rolled along the entire length ■ Ensures slime discharge performance and stable adhesion performance ■ Allows simultaneous drilling and bolt insertion operations, reducing cycle time ■ Pursues cost-effectiveness through bit selection according to the target geological conditions ■ Applicable to a wide range of uses *For more details, please refer to the PDF document or feel free to contact us.

"IBO Dry Mortar" is a mortar developed primarily for filling IBO anchors (post-grouting rock bolts), characterized by its early strength and adhesion. It contains special additives, and when mixed with the specified amount of water, it can be smoothly injected through the hollow part of the injection bolt. Additionally, due to its good fluidity, it excels in filling cracks and voids in the surrounding rock. 【Features】 ■ High-quality mortar can be mixed simply by adding the specified amount of water. ■ Combines fluidity and adhesion, resulting in properties suitable for construction. ■ Formulated for compatibility with MAI pumps. *For more details, please refer to the PDF document or feel free to contact us.

"SN Dry Mortar" is a high-performance mortar suitable for pre-filling applications. Developed as a mortar for pre-filling, it is generally formulated to be suitable for the installation of rock bolts and similar applications. When mixed with the specified amount of water, it has a soft and sticky consistency, making it difficult to flow out even when filled into upward boreholes, while also demonstrating sufficient initial strength. 【Features】 ■ High-quality mortar can be mixed simply by using the specified amount of water. ■ Combines fluidity and stickiness, resulting in properties suitable for construction. ■ Formulated for use with MAI pumps. ■ Standard mixing yield: approximately 10L/bag. *For more details, please refer to the PDF materials or feel free to contact us.

"CT Mortar" is a fast-setting, expanding type of premixed mortar developed for the post-filling injection of rock bolts. Its main purpose is to securely anchor rock bolts to the surrounding rock mass, while also filling voids and cracks caused by loosening around the borehole, thereby enhancing the reinforcement effect by rapidly developing strength. 【Features】 ■ Can compensate for filling defects (voids) through volume expansion ■ In weak rock masses with low adhesion, improves adhesion by applying pressure during injection and additionally compressing the borehole wall through volume expansion ■ The mortar filled in the borehole and cracks expands, compacting the surrounding rock mass and increasing its shear strength ■ Good workability and easy handling *For more details, please refer to the PDF document or feel free to contact us.

The "CT Bolt" is a combined type rock bolt that is temporarily installed and later permanently secured with grout. It allows for quick and easy installation, and various viscosities of grout can be easily injected and filled, while the polyethylene sleeve protects the bolt from corrosion. Manual installation is possible, and automated installation using a specially developed rock bolt setter is also feasible. 【Features】 ■ Combined type rock bolt ■ Quick and easy installation ■ Easy injection and filling of various viscosities of grout ■ Special hemispherical dome head ■ Unique anti-corrosion structure *For more details, please refer to the PDF document or feel free to contact us.

We handle the tunnel excavation material "GFRP Rock Bolt." We offer the solid type "CG22S," which allows for nut attachment and connection via joint couplers, and the "CGR32," which utilizes its hollow section to inject anchoring materials or ground reinforcement materials. These products can be used for applications such as middle wall construction methods, face reinforcement bolts, and injection pipes for planned excavation areas. [Features (CG22S)] - Solid type fully threaded GFRP rock bolt - Allows for nut attachment and connection via joint couplers - Suitable for applications such as middle wall construction methods and advanced guide pile pattern bolts *For more details, please refer to the PDF materials or feel free to contact us.

The "Super Spiral Bolt SP24" is a high-strength lock bolt that inherits the excellent features of the "SN Twist Bolt." It features a newly designed special rib and screw section that are formed simultaneously during the bar steel rolling process, ensuring there are no cross-sectional defects in the screw section and that it exhibits uniform strength throughout its entire length. 【Outstanding Characteristics】 ■ Utilizes high-strength material SD685, achieving a yield load of over 297 kN while being even lighter (3.4 kg/m) than the SN Twist Bolt. ■ By maintaining the same material diameter and reproducing the surface shape of the SN Twist Bolt, the insertion resistance is equivalent to that of the SN Twist Bolt. ■ In terms of ground deformation during the early age of the anchoring material, it has high adhesion toughness, making it less likely to experience adhesion failure, inheriting the excellent anchoring characteristics of the SN Twist Bolt. ■ The adoption of the special-shaped nut "S Nut" reduces the protrusion of the nut and bolt, eliminating the need for protective materials (caps/mats) for the head during waterproof sheet installation. *For more details, please refer to the PDF document or feel free to contact us.

This product is a rock bolt that can be applied under high pressure conditions due to its high strength (290 kN capacity). The increase in strength allows for a reduction in the number of bolts, which improves construction speed. After installation, the anchoring force is secured instantly, contributing to rapid construction. Additionally, tightening with nuts and square washers is possible. 【Features】 ■ Applicable under high pressure conditions due to high strength (290 kN capacity) ■ Improvement in construction speed by reducing the number of bolts due to increased strength ■ Instant securing of anchoring force after installation contributes to rapid construction ■ Tightening with nuts and square washers is possible *For more details, please refer to the PDF document or feel free to contact us.

The steel pipe expansion-type friction lock bolt has been adopted as a solution for tunnel construction projects under challenging ground conditions. Its weakness is the "uncertainty of lifespan" of the thin-walled steel pipe that is anchored in direct contact with the ground. This product addresses that weakness. The introduction of the steel pipe expansion-type friction lock bolt, which is expected to have a semi-permanent function. 【Features】 ■ Higher hardness and less prone to scratches compared to other galvanized coatings ■ No peeling of the coating layer due to expansion during construction ■ Exhibits excellent corrosion resistance under ground conditions with a pH of 4 to 12, maintaining reinforcement effects over the long term ■ Utilizes a new material with excellent elongation properties, exhibiting superior deformation characteristics *For more details, please refer to the PDF document or feel free to contact us.

This product is suitable for conditions that require higher elasticity (when the rock bolt needs to function within the elastic range and reduce deformation in the excavation area more effectively). With the improvement of yield strength and fracture strength, the excellent features of "Suerex" can now be utilized under greater load conditions. The combination of material technology and Suerex bolt functionality enables reliable installation, support functions that are effective across the entire length of the bolt immediately after installation, and the ability to respond to harsh excavation conditions. 【Features】 ■ Quality can be verified with each installation ■ Safe and simple installation work ■ Provides support capacity as per specifications immediately after installation ■ Does not require harmful chemical products ■ Corrosion resistance suitable for long-term support ■ Not affected by vibrations from blasting ■ Reduction of working time is possible *For more details, please refer to the PDF materials or feel free to contact us.

This product is a lock bolt made using high-strength deformed steel SD345 as specified in JIS G3112. It is processed with rolled metric threads based on JIS B0205. Additionally, the tip shape is conical. 【Features】 ■ Made with high-strength deformed steel SD345 as specified in JIS G3112 ■ Rolled metric threads based on JIS B0205 ■ Tip shape is conical *For more details, please refer to the PDF document or feel free to contact us.

The "SN Twist Bolt" is a twisted rebar lock bolt that has been cold twisted from specially manufactured high-strength deformed steel bars to further enhance its strength. When this product is inserted into a borehole filled with mortar, the spiral ribs and lateral bumps rotate the mortar, improving insertability. As a result, it prevents the formation of voids behind the ribs and bumps, ensuring good adhesion along the entire length of the bolt. 【Features】 ■ Forms a surface shape that is easy to insert into boreholes filled with mortar ■ Effective in preventing the formation of voids between the mortar and the bolt ■ Adhesion performance with mortar is superior to that of deformed steel bars ■ Rolled threads based on JIS-B-0205 standard metric coarse threads *For more details, please refer to the PDF document or feel free to contact us.

This is a new concept tunnel rock bolt that expands due to high water pressure and has a mechanism for securing itself to the surrounding rock. 【Features】 ★ Reliable construction without filling materials ★ It securely anchors to the surrounding rock using the expansion pressure of the steel pipe without using filling materials like mortar. Even in areas with water inflow, it anchors reliably without the influence of cement component leakage. ★ Speedy construction ★ No anchoring materials like mortar are needed, and it anchors simultaneously with construction, contributing to a shortened construction cycle and early strength development. ★ High corrosion-resistant rock bolt ★ The entire length of the bolt is treated with high corrosion-resistant plating, boasting high durability. This contributes to the long lifespan of tunnel structures. *For more details, please download the PDF or contact us.*

* Integrated nut washer * Flat surface of the washer * Sheet is less likely to be damaged * Pull-out test can be conducted as is

- Adhesion strength: It can achieve a tensile force exceeding the yield strength of the anchor bar with an effective length of 7 d.a. - Hardening performance: It hardens in 24 hours due to the use of special cement. - Workability: Being in a capsule type, simply immersing it in water ensures a constant water ratio, making the mixing process smooth. - Constructability: Due to its high viscosity, there is minimal sagging of the injected mortar during horizontal and upward construction. - Corrosion resistance: The entire surface of the anchor bar is covered with anchor fixing material (mortar), providing excellent corrosion resistance. - Safety: As it primarily consists of cement mortar, it is non-combustible and does not contain harmful substances.

"Multi-functional" Friction Type Steel Pipe Expansion Lock Bolt ◎ Function (1) Water Drainage ■ After the expansion of the RPE lock bolt, applying further water pressure releases the end cap, allowing it to be reused as a hollow water drainage bolt. ■ The drainage hose processes the water flowing from the bolt hole as clean water. ◎ Function (2) Injection from the Tip ■ After the release of the end cap, it becomes a hollow bolt, enabling water-stopping injections, etc. (※ After the release of the end cap, it is possible to inject cement-based or resin-based materials using the hollow space.) ■ The water reduction effect from the water-stopping of the bolt hole can reduce the impact on water shortages caused by tunnel excavation. ※ For more details, please refer to the PDF document or feel free to contact us.

"C-Tite" is a capsule-type anchoring material for rock bolts, primarily composed of special cement. It can be used simply by immersing it in water, and does not require mixing or pumping machinery. The "Standard Type (S)" achieves a compressive strength of over 10 N/mm² in 24 hours (usable time: 40 minutes), while the "Quick Setting Type (Q)" achieves over 10 N/mm² in 3 hours (usable time: 15 minutes). 【Features】 ■ Cement capsule type ■ Usable simply by immersion in water ■ Quick Setting Type (Q) is a rapid hardening type that exhibits early strength ■ Strength development time (at 20°C) ・Standard Type (S): Achieves a compressive strength of over 10 N/mm² in 24 hours (usable time: 40 minutes) ・Quick Setting Type (Q): Achieves a compressive strength of over 10 N/mm² in 3 hours (usable time: 15 minutes) *For more details, please refer to the PDF document or feel free to contact us.

This is an environmentally friendly dry mortar aimed at reducing CO2 emissions based on the concept of carbon neutrality. By using fly ash and high early strength cement as the main components, it has achieved a reduction of 3.4 kg of CO2 per bag compared to the CO2 emissions from the production of conventional dry mortar. 【Features】 ■ Reduction of carbon dioxide emissions ■ Reuse of industrial waste ■ Formulation suitable for construction with MAI pumps ■ Difficult to flow out from boreholes *For more details, please refer to the PDF materials or feel free to contact us.