コーリョー建販 List of Products and Services

"Slab Reinforcement" is a crack reinforcement bar that can be placed close to the concrete surface in slab openings. Slab openings are often densely arranged, and due to the relationship with the anchorage length, reinforcement can be difficult. In particular, diagonal reinforcement for crack prevention may interfere with adjacent openings. Due to its very compact product size, it can be firmly installed even in beam edges where conventional reinforcement is challenging, or in densely packed sleeves. 【Features】 ■ Compact, welded closed octagonal shape ■ The restraining effect of the closed shape suppresses crack propagation ■ Ensures a cover thickness of 35mm ■ Reinforcement material: SD295A ■ Compatible with sleeves ranging from 100φ to 400φ *For more details, please refer to the PDF materials or feel free to contact us.

• Work tools

The "DIA Ring" is a reinforcement method for openings targeting steel structure H-shaped cross-section beam members. Depending on the required load capacity, one DS type, one DL type, and two DS types can be used. When using one piece, the entire perimeter is welded on one side without inverting the beam, which greatly enhances workability. In construction, the welding sizes are standardized to 6mm for the DS type and 9mm for the DL type. Since all products of the DS type and DL types DL100 to DL200 are targeted products on both sides, they are easy to manage in terms of quality control. 【Features】 ■ Depending on the required load capacity, it is possible to choose between using one DS or DL type and using two DS types. ■ Significantly reduces the amount of welding required. ■ High product precision allows for easy assurance of construction accuracy. ■ Eliminates the need to "invert the beam" during installation, greatly improving workability. ■ Easy construction management. *For more details, please refer to the PDF materials or feel free to contact us.

• Renovation and repair methods
• Reinforcement and repair materials
• Bridge Construction

The residential foundation diamond reinforcement is a perforated reinforcement bar designed to strengthen the area around the holes in the foundation beams with single reinforcement, used in strip foundations and slab foundations for wooden (traditional frame construction and panel wall construction) and steel (lightweight steel frame) houses up to three stories. No reinforcement calculations are necessary, and it can also be applied to foundations for stores and other structures. It adopts a slim processed welding method called "KS-F welding," which allows for safe construction and features a shape without overlaps, making it ideal for single reinforcement. It is the first prefabricated sleeve reinforcement bar for residential foundation single reinforcement to obtain BCJ certification (General Incorporated Foundation Japan Building Center BCJ Certification - LC0150-01).

• Special function opening

The "Concrete Reinforcement Hardware/Dia-Len" is a reinforcement hardware that provides strong resistance against cracks during earthquakes and cracks caused by drying shrinkage during normal conditions. Additionally, it is a lightweight and compactly assembled product, making it highly efficient in terms of workability and cost-effectiveness. 【Features of Reinforcement Hardware Dia-Len】 ■ Resistance Effect Against Compression and Cracking Dia-Len welds the rebar together at the top and bottom positions. ■ Workability and Cost-Effectiveness Dia-Len is a lightweight and compactly assembled product. ■ Shear Reinforcement Effect Diagonal double reinforcement bars in a diamond shape are arranged at a 45° angle to counteract the shear forces acting on the openings. *For more details, please request materials or view the PDF data available for download.

• Special flooring/indoor and outdoor
• Reinforcement and repair materials

Durable reinforced steel is a rust-proof rebar with guaranteed performance, ensuring reliable quality. It excels in heat resistance, with no softening or carbonization of the coating, reducing the decrease in concrete adhesion due to heating from fires and other sources. Covered with a strong coating of zinc and a zinc-iron alloy layer, which has a lower corrosion potential than iron, it provides sacrificial corrosion protection, resulting in minimal localized corrosion due to coating defects. Special care is not required to protect the coating during transportation or on-site construction. Type A is a partial rust-proof type, while Type B is a fully rust-proof type using hot-dip galvanized rebar certified by the Japan Building Center. 【Features】 ○ Retains mechanical performance ○ Excellent corrosion resistance ○ Easy handling ○ Heat resistant ○ Hot-dip galvanizing standard JIS H 8641 HDZ-55 For more details, please contact us or download the catalog.

• Reinforcement and repair materials
• Concrete Machinery

The guardrail post foundation reinforcement bar "K-GH" is a reinforcement bar that can be manufactured as a hot-dip galvanized product, which is highly durable against cracking and other issues. Additionally, it has high precision due to factory machining. The double type combines two bars into one, allowing for reduced labor and easier installation. 【Features】 ■ Labor-saving installation Reduces work steps by combining two into one (double type) ■ Quality assurance High precision products due to factory machining ■ Shortened delivery time Easy factory production with standard dimensions (stocking of standard products) ■ Improved durability Capable of producing hot-dip galvanized products that are highly durable against cracking and other issues *For details, please request materials or view the PDF data from the download.

• Reinforcement and repair materials
• Concrete Machinery

MK Hoop is a high-strength shear reinforcement bar with a strength of 785N/mm², using high-strength rebar MK785. It eliminates the overcrowding of reinforcement in columns and beams. Depending on the design policy of the building, options for ensuring safety and controlling damage can be selected in short-term allowable shear design. It has obtained the evaluation from the Japan Building Center, BCJ Evaluation-RCO419-02. 【Features】 ○ High-strength rebar ○ Reduction in the amount of shear reinforcement, eliminating overcrowded reinforcement ○ Can be used as a lap joint with a 180° hook for large beams ○ Non-heat-treated rebar, allowing for good elongation after welding ○ Straight bar material enables processing with minimal "twisting" and "warping" For more details, please contact us or download the catalog.

• Reinforcement and repair materials

By ensuring that the welded part exceeds the standard value of the base material, it acts as a closed-type restraining reinforcement, demonstrating excellent crack prevention effects.

• Safety and consumables

In conventional 135° hooked shear reinforcement bars, when tensile forces are applied to the shear reinforcement bars, pullout occurs at the hook section. Furthermore, if the cover concrete spalls, the pullout becomes even more significant, and there is a possibility that the hook may disengage from the main bars. These factors weaken the confinement effect of the shear reinforcement bars on the core concrete and the buckling prevention effect of the main bars, resulting in very poor ductility. Core hoops (hoop bars, stirrup bars) joined by butt welding exhibit the reinforcing effect of shear reinforcement bars and significantly improve the ductility of columns and beams. Additionally, since it also enhances "constructability" and "shortens construction time," we encourage you to consider this option.

• Reinforcement and repair materials

In conventional reinforcement methods, there is a constraint that the position of the opening must be at least the depth of the beam away from the end of the beam to ensure structural performance, which necessitates a larger "dropped ceiling" (width 90cm to 130cm) and compresses the indoor space. The Z-M Dairen method has made it possible to bring the opening closer to one-third of the beam depth from the end of the material. As a result, the width of the "dropped ceiling" can be reduced by more than 50cm, providing a more spacious indoor environment and expanding the design flexibility in floor planning, among many other benefits.

• Special function opening
• Special Construction Method

During the pouring of concrete, the sleeve position may shift due to concrete pressure and vibrations. At the work site, measures such as "hatsuru" are being taken, but they are very labor-intensive. Additionally, significantly "hatsuru" can lead to issues with the design strength of the beams and cover.

• Other fittings

Since the Great Hanshin-Awaji Earthquake, there has been an increasing number of cases in RC and SRC structures where slits are provided between RC walls and large beams and columns as part of seismic measures, leading to a demand for improved construction quality.

• Other flooring materials

We have launched "D-Talap," a new construction material that replaces stainless steel stair treads. While maintaining the quality of traditional stainless steel, we have achieved cost reduction. We respond to the needs of construction sites.

• Other flooring materials

Reinforced concrete exterior walls, especially cracks at the corners of openings, not only detract from aesthetics but also large cracks can lead to deterioration of durability due to water leakage and other issues. The newly developed WIN-S effectively restrains the occurrence of cracks with high-strength rebar (KSS785), strongly preventing the widening of cracks.

• Reinforcement and repair materials

In recent years, the application of RC structures in mid-rise and even high-rise buildings has expanded, leading to advancements in the high strength of structural materials, namely concrete and reinforcing steel. This development has created a demand for opening reinforcement hardware with a wide range of applications, from normal strength to high strength structural materials. The "Daiyaren NS" developed this time is a high-strength opening reinforcement hardware that meets these expectations, with an application range of Fc=21N/mm2 to 70N/mm2 and SD295A to 1275 grade high-strength reinforcing bars. In the design of this opening reinforcement hardware, not only the strength of the reinforcement hardware is considered, but also the amount of reinforcement, or reinforcement rigidity, is taken into account to ensure reinforcement effectiveness from normal strength concrete to high-strength concrete. Additionally, the "Daiyaren NS" can also be used as shear reinforcement hardware for SRC beam openings.

• Reinforcement and repair materials
• Structural Materials