光和商事株式会社 List of Products and Services

The "Metal Road Construction Method" is a three-dimensional frame prefabricated bridge where the piles, cross beams, and main beams are rigidly connected at the nodal points. Due to its multi-column three-dimensional frame structure, it has excellent seismic resistance and can be applied to existing roads. It is easy to transport and install components even in narrow road construction in mountainous areas, making it highly efficient in terms of construction. It is composed of short and lightweight prefabricated components, which shortens the on-site construction period. Additionally, it does not require large-scale excavation or backfilling, resulting in minimal generation of surplus soil and waste. [Features] ■ Strong against earthquakes ■ Easy to construct ■ Short construction period ■ Maintains existing roads ■ Abundant track record *For more details, please refer to the PDF materials or feel free to contact us.

The "Stamp Method" involves coloring the surface of concrete with a color hardener after pouring the ready-mixed concrete, and before the concrete hardens, pressing a "pattern mat" with natural stone, brick, or wood patterns to create designs. By embossing, a textured pattern is formed on the concrete surface, resulting in a natural finish. Additionally, because it is integrated with the concrete, it does not peel or become uneven, nor does it allow weeds to grow from the joints, making it highly durable. 【Features】 ■ Finishes with a natural texture ■ Highly durable due to integration with concrete ■ Natural shading and three-dimensional effect from the release powder ■ A lineup of 12 different pattern variations ■ Resistant to tire marks and has dirt-repellent properties *For more details, please refer to the PDF document or feel free to contact us.

This document introduces "anti-slip construction using the Astes method." To reduce the number of preventable slip and fall accidents, we propose anti-slip construction on road surfaces using the "sandblasting method" and "SREM method," aiming to create a community where everyone can live with peace of mind. 【Contents (excerpt)】 ■ Removal of slip causes with sandblasting ■ Long-lasting anti-slip effect from a single application ■ Safety measured in numbers ■ Equipment specifications ■ Collection of construction examples, etc. *For more details, please refer to the PDF document or feel free to contact us.

The "Strand Sheet Method" is a repair and reinforcement technique that processes FRP strands, which are impregnated and cured with resin, into sheet form and adheres them to the surface of concrete structures using a special adhesive. The special adhesive serves as both a primer and a leveling material, and since there is no need to impregnate the sheet with resin, the construction period is shortened and costs are reduced. This method achieves reinforcement effects that are equal to or greater than those of conventional continuous fiber sheet bonding methods. 【Features】 ■ Short construction period and low cost ■ Simple and high quality ■ Significant reinforcement effect ■ Good construction environment ■ Excellent workability without the need for resin impregnation or degassing *For more details, please refer to the PDF materials or feel free to contact us.

The construction method involves reinforcing a green panel made of FRP in a lattice shape, which is fixed at the head with reinforcement materials, utilizing the tensile strength of the reinforcement to prevent slope failure. By spraying soil or similar materials onto this part, full greening, which was difficult with conventional slope works, becomes possible. 【Features】 ■ NETIS Registration No. CG-010007-V ■ Lightweight at 16.8 kg due to being made of FRP ■ Easy to install ■ Significantly reduces construction time ■ High opening ratio due to lattice shape, enabling full greening *For more details, please refer to the PDF materials or feel free to contact us.

The "Galva Shield Method" is a special product that wraps zinc in a special mortar and utilizes the potential difference of metals to prevent rusting of rebar. It can be installed in both maintenance and repair of concrete structures (such as salt damage, carbonation, and macrocell corrosion) as well as new structures, offering a wide variety of options based on LCC and the presence of inherent salts. Additionally, the "Renderock Series" is used as a cross-section repair material. 【Features】 ■ NETIS Registration No. CB-020037-VE ■ Utilizes the potential difference of metals to prevent rusting of rebar ■ Can be installed in both maintenance and repair of concrete structures and new structures ■ A wide variety of options available based on LCC and the presence of inherent salts *For more details, please refer to the PDF materials or feel free to contact us.

This is a method ideal for replacing iron covers, characterized by speed, recyclability, and low cost. The weight of the cutter machine is 20 kg, and since it is dry, the asphalt dust generated after cutting the pavement is collected and recycled with a dust collector. By using jigs for square covers, the pavement cutting results in no leftover cutting marks, with the corners enclosed by arcs. Additionally, using recycled materials such as steel slag, traffic can be reopened at each location with cold rapid-hardening pavement materials.

During the installation of sewer connection pipes and public manholes, it is necessary to dig horizontal and vertical holes. However, due to the complex site conditions, the current situation relies heavily on manual labor, making labor-saving measures at the site a pressing issue. The Multi-Mole method mechanizes horizontal pushing and vertical excavation using "TonTon-kun" and "BuruBuru-kun." In addition to being used independently, it also allows for the joining of horizontal and vertical work. The Multi-Mole method significantly improves not only labor-saving but also safety and construction quality.

This document introduces the "Circle Cutter Method." It provides detailed information using diagrams and images about the overview and features, non-shrink mortar reinforcement layers, high-strength adhesive internal screw anchors, and more. Additionally, it includes information on construction procedures and examples, so please take a moment to read it. [Contents (Excerpt)] ■ Overview of the Circle Cutter Method ■ Features of the Circle Cutter Method ■ Paving cutting machinery for the Circle Cutter Method ■ Road restoration structure of the Circle Cutter Method ■ Subbase materials *For more details, please download the PDF or feel free to contact us.

The "Danby Method" is a technique for rehabilitating damaged or aging pipes in sewers, agricultural water systems, and sluices without excavation. A rigid PVC strip is fed into the existing pipe from a manhole, and while being spirally wound along the inner surface of the pipe, adjacent strips are joined using fitting components to form a continuous pipe body. Subsequently, using spacers installed above the existing pipe for injecting filling material, the gaps between the strip pipe and the existing pipe are filled with the material, resulting in a composite pipe integrated with the existing pipe, exhibiting high strength and water tightness. 【Features】 ■ Can be constructed only within the work zone on the road without excavation ■ Forms a new pipeline on the inner surface of the existing pipe ■ Improved chemical resistance and abrasion resistance due to the formation of a rigid PVC pipeline ■ Enhanced load capacity, seismic resistance, and flow capacity as a composite pipe integrated with the existing pipe *For more details, please download the PDF or feel free to contact us.

The "IPH method" replaces the air present inside the concrete and the injected resin, allowing the resin to diffuse radially from the drilled holes, thereby filling even the finest cracks at the ends. This method not only enhances the adhesion strength between rebar and concrete but also provides a high anti-corrosion effect, leading to improved durability. It has received technical evaluation from the Japan Society of Civil Engineers. Moreover, structures constructed using this method can extend the intervals between subsequent repairs. Since the deteriorated areas are repaired and injected without being chipped away, the amount of demolition waste is reduced, resulting in cost savings. 【Features】 ■ High-density filling ■ Rebar anti-corrosion and neutralization suppression ■ Strength recovery and durability improvement ■ Enhanced economic efficiency and environmental measures *For more details, please download the PDF or feel free to contact us.

The "Skeleton Disaster Prevention Coating" is a method that achieves a level of transparency allowing for visual confirmation of cracks and surface peeling of the structure by impregnating the base material, MBS Clear Guard, with a glass continuous fiber sheet that has excellent strength. After application, it becomes possible to visually inspect the surface of the structure, enabling pinpoint detection of areas where deformation has occurred, allowing for localized repairs. Additionally, the performance of the surface protection method has been verified through rigorous testing by third-party organizations in accordance with the necessary standards for anti-peeling performance. 【Features】 ■ The concrete surface is see-through ■ The fibers are soft ■ Simple work processes and materials used ■ Prolongs the lifespan of structures ■ Water vapor permeability ■ Repairability *For more details, please download the PDF or feel free to contact us.