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The WJ (Water Jet) method utilizes high-pressure water jets to meet various needs through high-level construction by skilled professionals, including the removal of standard road markings, surface grinding of concrete, chipping, and drilling.

• Reinforced concrete construction
• Road construction
• Bridge Construction

"WJ (Water Jet) Removal" is a method that uses high-pressure water, unlike traditional cutting bits for removal. With high water pressure, it peels off only the marking paint film while maintaining the uneven surface of permeable pavement. It minimizes damage to the pavement surface, and by simultaneously spraying high-pressure water and suctioning the peeled paint film, it prevents clogging of voids and does not affect drainage functionality. 【Features】 ■ Does not damage high-performance pavement ... Removes paint film while retaining the pavement's permeability function ■ No dust generation ... Works while recovering the removed paint film and water ■ Low noise ... No vibrations and minimal noise, making it suitable for nighttime work *For more details, please refer to the PDF document or contact our company.

• Special Construction Method

WJ (Water Jet) drilling is a method of drilling concrete using high-pressure water, unlike drilling with a diamond core drill. It does not generate dust like traditional drilling, and since the working water is vacuumed up simultaneously with the drilling, it allows for very clean work. Drilling is done without damaging the rebar or cables inside the structure. For more details, please contact us or refer to our catalog. We also accept inquiries regarding removal and polishing using WJ.

• Civil Engineering Method

San Road Co., Ltd. engages in traffic safety facilities, slope protection construction, and repair and reinforcement of civil engineering structures. With high technology and professionalism in our own construction, we create a safe traffic environment for the children who will lead the next generation. We are committed to developing businesses that protect the Earth and create a better environment, working hard, thinking deeply, and studying well to contribute, even in a small way, to the progress and improvement of humanity through the development of people and companies. 【Business Activities】 ■ Concrete structure repair business ■ Civil engineering materials business ■ Cleaning business ■ Slope business ■ Traffic safety business *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method
• Renovation and repair methods

The "Super Hozen Method" is a thickening method primarily applied for the repair and reinforcement of road bridge decks. A grid of rebar is pressure-fixed to the underside of the existing deck concrete using tapered T-type anchors to mitigate vibrations and impacts on the deck. After applying a specialized polymer cement mortar (Hozen material #10 for intermediate coating) to thicken the deck, epoxy resin is injected at ultra-low pressure to completely integrate the existing deck with the thickened section. Basically, construction can be carried out without restricting traffic, allowing for the rejuvenation of the bridge while experiencing reliable effects at each stage. ~Examples of application: ■ Decks with developed cracks ■ Decks showing free lime ■ Decks with insufficient cover or spalling concrete ■ Narrow structures in coastal areas ■ Reinforcement of steel plate bonding work ■ Reinforcement of carbon fiber sheet bonding work *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method

"Hozen Material #20 for Cross-Section Repair" is a polymer cement mortar that is a pre-mixed blend of acrylic-based re-emulsifiable powder polymers, various admixtures, and short fibers. By simply adding clean water and mixing on-site, you can obtain high-quality polymer cement mortar. This product is made from materials that excel in strength, adhesion, and thick application, and can be used as a cross-section repair material for various concrete structures. 【Features】 ■ Specially formulated with various admixtures ■ Allows for a single application of 20mm on vertical surfaces ■ Excellent crack resistance ■ Compliant with the performance verification items for cross-section repair using plastering methods as per the construction management guidelines of various highway companies *For more details, please refer to the PDF document or contact us.

• Paving Materials
• Mortar and plaster materials

The "R Anchor" is an anchor bolt used for the installation of temporary components, which can be completely removed after use by extracting all parts. It is a post-installed anchor bolt that allows for complete removal. The anchoring part is coated with a special coating, enabling it to be extracted simply by turning it counterclockwise with a wrench after use. After extraction, non-shrink mortar or similar materials can be filled in, significantly reducing concerns about structural deterioration compared to traditional methods of cutting and leaving anchor bolts in place. Additionally, it can accommodate future construction that requires drilling in the same location. **Features** - Compatible with large diameter bolts (up to M39) - Can be installed at low temperatures (minimum usable temperature -10°C) - No need for concrete chipping or cutting of anchor bolts during removal - Reduces construction time and noise

• Bridge Materials

The "NR Anchor" is a post-installed anchor bolt that can be applied to concrete structures. By using acrylic resin instead of conventional epoxy resin, stable construction is possible even in low temperatures during winter. The acrylic resin used significantly shortens the curing time, achieving approximately 79% reduction in process time compared to construction using conventional epoxy resin. 【Features】 ■ Can be installed at low temperatures of -10°C ■ Short curing time ■ Approximately 79% reduction in process time compared to conventional methods ■ NETIS registration number: KT-160115-A *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method

The "Alonbur Coat Z-X Method" and "Alonbur Coat Z-Y Method" are surface protection materials using acrylic rubber. The Z-X Method prevents deterioration and peeling, while the Z-Y Method focuses solely on preventing deterioration. By changing the topcoat material to a salt-resistant specification, it can be specialized for salt damage prevention. All standard materials used are water-based, so there is almost no odor from organic solvents or unusual smells, and skin irritation typically seen with organic materials is minimized. The material design takes into account the surrounding and working environments. The greatest advantage is its strong resistance to UV degradation, with a gradual deterioration of the film. For example, even if cracks occur in the structure, the film can stretch and follow, preventing the intrusion of deteriorating factors for an extended period. Since it is possible to apply additional layers of the coating, partial repairs can be made, and during the next repainting, the old film can be applied over without removal, leading to waste reduction and lower management costs. 【Features】 ■ Environmentally friendly water-based materials ■ Ability to apply additional layers of coating ■ Releases moisture from within the concrete as water vapor ■ Easy maintenance ■ NETIS registration number: CB-120013-VR

• Special Construction Method

"Orange Patch" is a groundbreaking special cold mix developed for the repair of asphalt pavement, with zero VOCs. Instead of volatile organic solvents, it uses citrus fruit peel oil, which is harmless to humans and the environment, eliminating the odors associated with traditional mixes during transport and use. Being all-weather, it can be used even in heavy rain or conditions with standing water. 【Features】 ■ Zero VOC, environmentally friendly ■ Contains citrus fruit peel oil (with an orange scent) ■ Excellent wear resistance ■ Long-term storage possible (does not harden just by being opened) *For more details, please refer to the PDF materials or feel free to contact our sales representatives.

• Paving Materials
• Exterior and paving materials <General>

"Eco Clean Soil" is a high-performance soil-based paving material that is effective for weed prevention and water retention. The main component is natural soil. Since it does not contain harmful substances, it can be crushed and returned to the earth when no longer needed. This product meets the strict environmental standards set by the Ministry of the Environment, making it safe and friendly for both people and pets. 【Features】 ■ Natural soil texture ■ Prevents heat from reflection ■ Allows trees and moss to grow naturally ■ Returns to soil after use ■ Easy installation ■ Ministry of Land, Infrastructure, Transport and Tourism New Technology Registration Number: TH-000030-V For more details, please refer to the PDF materials or feel free to contact us. *Our company provides services in Yamaguchi Prefecture and its neighboring areas.

• Paving Materials
• Exterior and paving materials <General>

Concrete structures play an important role as social infrastructure, and there is a demand for improved durability. However, the causes and degrees of deterioration that affect the durability of structures vary significantly depending on the environmental conditions of the construction site. Our company accurately identifies various causes of deterioration and proposes and implements suitable repair methods. 【Features】 ■ Accurate identification of various causes of deterioration ■ Proposal and implementation of appropriate repair methods *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Renovation and repair methods

San Road Co., Ltd. handles expansion devices for road bridges. We offer a lineup that includes the "Hama Highway Joint," designed with safety and low noise in mind, and the embedded expansion device "Seamless Joint." Additionally, we provide high-elasticity pavement material "Falcon SJ," as well as the highly durable elastic pavement slab "Watilis (ER type)." 【Features (Hama Highway Joint YMF Type)】 ■ Excellent durability ■ Good drivability ■ Easy installation ■ Excellent watertightness ■ Capable of following movements in various directions *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Paving Machine

"Carbon fiber sheets" are excellent in high strength and high elasticity, making them suitable for the reinforcement and repair of concrete structures. They improve shear strength, bending resistance, and fatigue life, and are also effective in crack suppression. Our company values existing construction structures and aims to create a better environment for the future. [Features] - Lightweight - Excellent high strength and high elasticity - Improved shear strength, bending resistance, and fatigue life - Effective in crack suppression - Ideal for the reinforcement and repair of concrete structures *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Reinforcement and repair materials

"Ultra High-Pressure Water Washing" allows for washing, peeling, and scraping in accordance with specifications by adjusting the pressure. Ultra high-pressure water washing, which does not use vibrating equipment, does not generate noise or vibrations. Furthermore, since water is used, there is no dust produced, which helps to minimize damage to the surrounding area. 【Features】 ■ Wash, peel, and scrape using the power of water ■ Construction in accordance with specifications is possible ■ No noise or vibrations generated ■ No dust produced due to the use of water ■ Damage to the surrounding area can be minimized *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Special Construction Method

The "Backfill Treatment Method" is a construction technique that builds a flexible footing plate using a composite of steel hexagonal panels and asphalt mixtures at the boundary between structures and earthworks (such as the back of bridge abutments or box culverts). It can be easily installed on existing bridges that do not have a footing plate. Additionally, the short construction time allows for significant reductions in the overall schedule. 【Features】 ■ A method for constructing a flexible footing plate ■ Easily installable on existing bridges without a footing plate ■ Short construction time ■ Significant reduction in the overall schedule *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Special Construction Method

The "Tn-p Method" is a tunnel repair method designated as a "Technology for Promotion of Utilization" by NETIST. The injection machine's pump sends both Liquid I and Liquid R to the mixing head, where they are mixed through air agitation to form foamed polyurethane (Achilles Airon-R). The injection equipment is very compact, and the filling material is transported in liquid form (in drums) at about 1/40 to 1/12 of the volume after foaming, allowing all materials and equipment to be loaded onto a single 4-ton truck. 【Features】 ■ Excellent workability ■ Compact injection equipment ■ All materials and equipment can be loaded onto a single 4-ton truck ■ Effective for stopping groundwater *For more details, please refer to the PDF document or feel free to contact us.

• Special Construction Method

"Ribacon Liquid" can repair cracks up to 0.2mm through its self-repairing function, demonstrating waterproofing and sealing effects. It penetrates and diffuses deeply in a short period, generating cement crystals, which significantly enhances the modification effect on concrete. Additionally, since it is water-soluble, surface preparation only requires the removal of dust from the substrate, and no watering curing is necessary, leading to reduced work costs. 【Features】 ■ Significant improvement in concrete modification effect ■ Contributes to cost reduction ■ Shortens construction period ■ Concrete surface after application ■ Maintenance-free *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Reinforcement and repair materials

"Protect Sil CIt" is a silane-based impregnation surface protection material that has a function to suppress rebar corrosion. Thanks to the action of chemically bonded amino groups, it penetrates deeply just by being applied to the concrete surface, forming a water-repellent layer through chemical reactions, and creates a protective layer around the rebar to suppress corrosion. Therefore, it is particularly effective as a countermeasure against the deterioration of concrete structures due to salt damage. 【Features】 ■ Rebar corrosion suppression type ■ Deep penetration with just application ■ Suppresses corrosion ■ Suitable for countermeasures against the deterioration of concrete structures due to salt damage *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Reinforcement and repair materials
• Slope protection material

"Procon 40" has been improved to diffuse more effectively using an internal pressure injection method while maintaining the high concentration and performance of conventional lithium nitrite. By injecting this product into concrete that has deteriorated due to alkali-silica reaction (ASR), lithium ions can non-expand reactive aggregates, thereby suppressing further expansion of the concrete. Additionally, by injecting it into deteriorated concrete where corrosion of internal rebar has already begun due to salt damage or carbonation, nitrite ions can restore and generate a passive film on the rebar, thus suppressing further corrosion of the rebar. [Features] - Improved for better diffusion using internal pressure injection method - Suppresses concrete expansion - Nitrite ions restore and generate a passive film on rebar - Suppresses rebar corrosion *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Reinforcement and repair materials

The "Zaipex Method" is a construction method that uses the concrete modification material "Zaipex" to block the penetration of water and harmful substances, thereby improving durability performance. A concentrated powder is mixed with a specified amount of clean water to create a paste, which is then applied or sprayed onto the surface of the concrete. Catalytic compounds penetrate deep into the concrete (approximately 30 cm), promoting the growth of new cement crystals in capillary voids and crack interfaces, thereby densifying the concrete structure itself. 【Features】 ■ Catalytic compounds penetrate deep into the concrete (approximately 30 cm) ■ New cement crystals proliferate at crack interfaces ■ Densification of the concrete structure itself *For more details, please refer to the external link or PDF materials, or feel free to contact us.

• Special Construction Method