カンケン List of Products and Services

The large block with a 35cm setback is designed for horizontal self-supporting, making it excellent for construction work. It has the same setback length as a stone block, allowing for significant reductions in construction time. 【Features】 - The surface pattern features a stone-like design that blends well with natural landscapes. - The retaining wall slope is at a 3:1 gradient. It can also accommodate 4:1 and 5:1 stacking using foundation blocks. - The product has a box-shaped cross-section, allowing for integration with core-filled concrete. - It features a horizontal self-supporting structure for safe construction design. - Foundation blocks and edge-stopping blocks are also available in the series. - Brightness and texture certificates have been obtained. - JIS certification has been acquired. For more details, please contact us or download the catalog.

• Concrete Retaining Wall
• Stacking blocks
• Road facilities

The Kanken array spacing expansion package allows for an increase in power generation capacity by adding one row of panels to the existing solar power generation equipment (power plant) array spacing. 【Example】 In the case of stacking 4 rows vertically, there is a 25% increase (1,000kW → 1,250kW). In the case of stacking 5 rows vertically, there is a 20% increase (1,000kW → 1,200kW). 【Features】 ● Can be expanded by adding one panel at a time ● Easy installation ● Short construction period, just install factory-produced products ● For more details, please download the catalog or contact us.

• others

The "ECO Nbi Method" is a trench repair method that allows for repairs by replacing only the deteriorated covers with ECO Nbi covers, without damaging the main body of the trench. By securing the primary cover with filling material, it is possible to repair any damaged parts of the trench body simultaneously, allowing for same-day reopening. Additionally, while the primary cover is fixed, the lightweight secondary cover is removable, making maintenance easy even after construction. The construction process does not require chiseling or cutting of the trench body and can be done manually. 【Features】 - Existing trench cover support areas can be utilized as is, even if damaged. - Small-scale construction is possible without heavy machinery, resulting in overall lower costs! - Manual construction is feasible, allowing for speedy execution. - The cover support area is reborn-shaped (curved), significantly reducing noise and vibration! - Utilizing existing trenches minimizes the generation of industrial waste such as concrete debris. - No modifications are made to the existing trench body. - The covers are lightweight and easy to remove, enhancing maintainability. - The absence of unevenness ensures a barrier-free environment, safe for wheelchairs and other mobility aids. 【NETIS Registration Number: HR-120004-A】 *For more details, please download the catalog and contact us.

• Gutters and U-shaped gutters
• Renovation and repair methods

High-strength concrete (design standard strength 45.0 N/mm²) and high-strength rebar ribbed cross (yield strength 600 N/mm²) are used, resulting in a floor slab thickness that is approximately 30% thinner than that of cast-in-place construction. This allows for a higher clearance beneath the floor slab. As it is a precast product, transportation and installation can be carried out simultaneously with the completion of the substructure, leading to a reduction in construction time. 【Features】 ○ Strong, thin, and lightweight ○ Fast ○ Cost-effective ○ Wide variety For more details, please contact us or download the catalog.

• Dam construction
• Earthworks
• Pile and foundation work

The "GU Block Stationary TYPE" is a precast concrete foundation block used for temporary fences at road regulation points, developed primarily for use on road surfaces. It can also be utilized for buried or partially buried applications. The blocks can be partially removed by disconnecting the hex bolts due to the plate connection between them. There is also a central median TYPE that contributes to road opening. 【Features】 ○ Quick installation, removal, and relocation ○ Can be handled by forklifts as well as cranes ○ Grooves for wire and belt slings during crane operations are provided to prevent slippage ○ Insertion holes for forklifts also serve as drainage holes due to the road's slope ○ The block shape is symmetrical, ensuring good balance and stability when lifted For more details, please contact us or download the catalog.

• Dam construction
• Crane and others

The VS mass has the same total width as the VS side ditch (free gradient ditch) and does not have any protrusions. The noise-reducing rubber provides noise prevention effects. 【Features】 ○ Comes with a cage to prevent debris from entering ○ Iron receiving frame prevents corner chipping (anti-slip processing) ○ Has cut grooves for easier cutting ○ The top width fits perfectly with the side ditch For more details, please contact us or download the catalog.

• Gutters and U-shaped gutters
• Dam construction

The PU mass has the same total width as the PU-3 drainage ditch and does not have any protrusions. The noise-reducing rubber provides noise prevention effects. 【Features】 ○ Comes with a cage to prevent debris from entering ○ Iron receiving frame prevents corner chipping (anti-slip processing) ○ Has cut grooves for easier cutting ○ The top width fits perfectly with the drainage ditch For more details, please contact us or download the catalog.

• Gutters and U-shaped gutters
• Dam construction

The "FR Cross Drainage Ditch / FR Catch Basin" can accommodate a longitudinal slope of up to 15% without steps. Since there are no changes in slope, it enables smooth vehicle movement. As cutting of the ditch and on-site pouring are unnecessary, it significantly shortens the construction period. 【Features】 ○ Stepless adaptation to the longitudinal slope of the road ○ Compatible with longitudinal slopes of up to 15% ○ Achieves smooth vehicle movement without slope changes For more details, please contact us or download the catalog.

• Gutters and U-shaped gutters
• Grating
• Dam construction

Since the block and foundation concrete are integrally molded, there is no need for curing or stacking labor, which allows for labor-saving in construction and a reduction in construction time. Additionally, it can be installed using small machinery. By using specialized parts at corners and edges, the corner and edge areas can be finished neatly. Furthermore, both sides of the surface have a tile pattern, making it visually appealing. 【Features】 ● Easy installation allows for reduced construction time ● Sturdy connection with flanges ● Beautiful finish with tile patterns *For more details, please refer to the catalog.

• Earthworks
• Pile and foundation work
• Tile work

The TP Pre-Guard is a temporary protective fence that can absorb impact forces by allowing the fence itself to slide and move during a vehicle collision. The main body features a rigid protective fence structure, and the connection points are designed to allow rotation and extension upon impact from a vehicle, enabling several units to slide and absorb the vehicle's impact force. By allowing movement of the product, it satisfies the performance criteria outlined in the "Installation Standards and Explanations for Protective Fences," while also improving economic efficiency and ease of installation for temporary protective fences.

• Temporary Construction Materials

We provide precast concrete products for the support structures essential for solar power generation facilities, specifically solar panel modules. Being made of concrete, they are highly resistant to corrosion and do not rust even in salt-damaged areas! Additionally, they are easy to install as they only require placement, allowing for quick construction! For more details, please download the catalog or contact us.

• Concrete sheet piles and piles
• others

[NETIS SK-980019-A] The goal of the retaining wall is to provide a reliable technology that pursues three pillars: safety, constructability, and economy, leaving safety and beautiful landscapes for the next generation. ● Retaining wall certified under Article 14 of the Enforcement Order of the Land Development and Urban Planning Act It is the first in the country to receive certification from the Minister of Land, Infrastructure, Transport and Tourism for heights up to 9 meters above ground, and can be used within the application area of Article 38 of the Building Standards Act and Article 14 of the Enforcement Order of the Land Development and Urban Planning Act. ● Retaining wall with Civil Engineering Technology Review Certification It has received a civil engineering technology review certification from the Public Interest Incorporated Foundation Civil Engineering Research Center for heights up to 10 meters, and is recognized to have structural performance equal to or greater than that of cast-in-place reinforced concrete retaining walls.

• Concrete Retaining Wall

It is ideal for resolving damage to golf course cart paths, farm roads, and private roads that are muddy. It is lightweight and of a convenient size, making it suitable for manual construction.

• Dam construction

[NETIS CB-990039-V] This is an egg-shaped pipe type of underground side ditch with a slit drainage function, allowing for continuous water collection. Additionally, its slim shape and lack of a cover make it suitable for narrow roads. It received the Encouragement Award at the 2nd National Land Technology Development Award.

• Gutters and U-shaped gutters
• Grating
• Dam construction

It is a surface drainage stop product. Weighing only 4 kg each, it is easy to install. It is also compatible with color coloring.

• Dam construction
• Erosion control works
• Agricultural civil engineering works

Using the phototropic property that plants inherently possess, which is "buds do not grow downward," we have integrated paving material into the diagonal cut on the product's side, forcing the budding shoots to grow downward, thereby preventing the growth of weeds.

• Secondary paving products
• Paving of sidewalks, roads, parking lots and stadiums

"From Concrete to Birds" Kingfishers dig their own holes in exposed vertical banks and cliffs to build nests. However, in recent years, suitable nesting locations have become very scarce nationwide. Therefore, this method provides a safe breeding place (nesting) for kingfishers and crested kingfishers through newly constructed precast concrete retaining walls.

• Special Construction Method

We provide precast concrete products for the support structures essential for solar power generation facilities, specifically solar panel modules. Being made of concrete, they are excellent in corrosion resistance and do not rust even in salt-affected areas! Additionally, they are easy to install as they only require placement, allowing for quick and simple construction!

• Harbor Construction
• Power generation facilities
• Other civil engineering works

Since one side wall is flat, it is ideal for areas where one side is exposed. Additionally, due to the art pattern, it not only excels in aesthetics but also offers a slip-resistant effect.

• Gutters and U-shaped gutters
• Dam construction

The shape of the green pot is different from traditional greening blocks, featuring a water storage function at the bottom, and it is a groundbreaking method that simultaneously addresses the issue of root rot.

• Earthworks
• Pile and foundation work
• Renovation and repair methods

This is a parking block (car stopper) with a reflector. We have two sizes available.

• Car and bicycle parking facilities
• Car and bicycle parking facilities

This is a slot-type flume. We also offer buoyancy-compatible types, L-shaped flumes, and split-type flumes. Sizes range from 150mm x 150mm to 2200mm x 1200mm.

• Erosion control works
• Agricultural civil engineering works
• Other civil engineering works

This is a flume with a joint connection type. We also offer buoyancy-compatible types and L-shaped flumes. Sizes range from 300mm x 300mm to 2000mm x 1500mm.

• Erosion control works
• Agricultural civil engineering works
• Other civil engineering works

This is an L-shaped retaining wall that complies with the "Precast L-shaped Retaining Wall Design and Construction Manual (Draft) Revised Edition December 2001" (Shikoku Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism). We offer four types: Type 1 (Standard Type), Type 2 (Straight Type), Type 3 (25 cm Cut Type), and Type 4 (50 cm Cut Type).

• Retaining wall

[NETIS CG-990006-A] By simply installing it on road slopes, it prevents the growth of weeds while maintaining a landscape that harmonizes with the surrounding environment without causing any impact. Additionally, it is effective in fire prevention, such as preventing fires caused by discarded cigarettes.

• Dam construction
• Airport facilities
• Other civil engineering works

The "Eco Waterway Construction Method" is a new ecological conservation waterway construction method developed with the aim of improving functionality while reducing costs. There are three types: bottom hole type, horizontal hole type, and combined type.

• Erosion control works
• Agricultural civil engineering works
• Other civil engineering works

[NETIS CG-990009-A] This side ditch is a concrete product designed with a slope to allow small animals that have fallen into the drainage channel to return to their natural environment on their own. In areas where various small animals inhabit and where it is difficult to determine installation intervals, continuously installing the overhang type contributes to the preservation of the natural ecosystem. We also offer JIS ditch types and U-shaped ditch types.

• Gutters and U-shaped gutters
• Dam construction
• Other civil engineering works

[NETIS CG-980014-V] The surface features an art pattern (convex pattern), and the lid support section has a reborn shape (curved shape) with a free gradient side groove. Due to the art pattern, it not only excels in aesthetic appeal but also offers expected anti-slip effects. Additionally, the lid support section's reborn shape (curved shape) is expected to provide noise reduction benefits.

• Gutters and U-shaped gutters
• Dam construction

【NETIS CG-980014-V】 Due to the slits, it can continuously collect water in the longitudinal direction. This allows for the collection of road drainage over the shortest distance, preventing water from pooling on top of ditches. Additionally, the artistic pattern enhances the aesthetic aspect. In the case of a retaining wall specification, a cassette wall is used.

• Gutters and U-shaped gutters
• Dam construction

【NETIS KK-100053-A】 Due to the slits, it can continuously collect water in the longitudinal direction. This allows for the collection of road drainage over the shortest distance, preventing water from pooling on top of ditches. Additionally, the artistic pattern enhances the aesthetic aspect as well.

• Gutters and U-shaped gutters
• Dam construction
• Other civil engineering works

【NETIS CB-060014-A】 This is a construction method for installing secondary products such as box culverts, free gradient ditches, and L-shaped retaining walls in mountainous areas and urban areas where large vehicles and heavy machinery cannot enter. It involves installing rails (steel materials) and steel balls, over which products mounted on sleds (steel materials) slide. Manual installation is also possible depending on the weight of the products.

• Special Construction Method

Over time, it creates a landscape that rivals natural stone. It is a stacked block that harmonizes with the surrounding nature.

• Stacking blocks

【NETIS HR-110017-A】 This technology aims to "prevent and mitigate traffic accidents" by adding functions that generate "sound" and "micro-vibrations" to gutters to alert pedestrians and drivers of deviating vehicles to potential dangers. If a vehicle deviates toward the sidewalk due to distractions or drowsiness while driving, the generated sound will alert pedestrians to the danger early, while the sound and micro-vibrations will prompt the driver to pay attention, providing high safety for both parties.

• Gutters and U-shaped gutters
• Dam construction
• Renovation and repair methods

By converting the bottom slab of the sewage treatment tank, which has been cast in place, into a secondary product, the construction period can be significantly shortened. Generally, it takes about half a day from the start of excavation to the completion of the installation of the sewage treatment tank.

• Foundation construction
• Water Supply Facilities
• Sewerage facilities

[NETIS SK-060003-V] This corresponds to the revision of the standards for "Road Earthworks - Retaining Wall Construction Guidelines" from March 1999. For the foundations of secondary product protective fences, it results in approximately a 70% reduction in construction time compared to site-cast methods. It is also compatible with protective fence foundations from Type A to Type C.

• Protective fence
• Retaining wall
• Concrete Machinery

The Reborn gutter reduces noise generation structurally by making the lid receiving part curved. It is available at the same price as standard JIS gutters and adds noise prevention and anti-slip effects. Additionally, it supports internal hanging, significantly improving workability.

• Gutters and U-shaped gutters
• Dam construction
• Other civil engineering works

The "Tripot KFC" is a crosswalk grating called "Tripot," which excels in maintenance management and durability, set into a reinforced concrete U-shaped ditch. Due to its three-point support structure, it is stable, quiet, and long-lasting.

• Gutters and U-shaped gutters

It can accommodate all site conditions such as road gradient, embankment shape, land width, and flow rate. Additionally, the width and depth of the waterway and the top slope can be adjusted freely, allowing for flexible design cross-sections. The vertical side walls also make installation easy.

• Dam construction
• Erosion control works
• Agricultural civil engineering works

It is suitable for road crossing areas with a longitudinal slope. It accommodates longitudinal slopes of 0 to 10% with a 2% pitch. It is also suitable for parking lots and entrances to various stores.

• Gutters and U-shaped gutters
• Secondary paving products

The ARVS side ditch - F type is a flexible free gradient side ditch that allows bending to the left and right by approximately 20° each, without the need for mortar filling or cutting of the product, thanks to its curved joint design. In addition to its artistic pattern, it does not produce any on-site cast parts on the surface, resulting in a clean finish that is also aesthetically pleasing. As it does not generate waste materials or dust from product cutting, it is an environmentally friendly road ditch.

• Gutters and U-shaped gutters
• Dam construction
• Other civil engineering works

【NETIS HR-120004-A】 By combining the primary and secondary lids, we effectively utilize the existing drainage channel body and rejuvenate it like a newly constructed drainage channel. No special construction machinery is required, and manual construction is possible. For small-scale projects, construction can be completed in about half a day. This method is perfect for the era of maintenance management and longevity.

• Renovation and repair methods
• Special Construction Method

[NETIS SK-060007-A] This is a large block retaining wall made of "backfill material (crushed stone)" filled inside the back of a "large stacking block with a leaning style" that is integrated with cast-in-place concrete. The back of the block is equipped with a corrosion-resistant "back material (expanded metal)," and the backfill material is utilized as self-weight. Traditionally, the backfill material was intended for collecting groundwater behind the retaining wall, but now it can be used not only for drainage purposes but also as 100% self-weight. This allows for a reduction in the cross-section of the concrete part of the retaining wall itself, enabling cost savings.

• Renovation and repair methods

【NETIS SK-050012-A】 It is possible to widen the road by about 2 meters simultaneously with the construction of conventional block stacking. It is ideal for one-lane roads in mountainous areas, allowing for the installation of vehicle pull-off areas (1.5-lane conversion), sidewalks, bus stops, etc. Additionally, stacking up to four layers allows the internal space of the blocks to be used for nesting and watering areas for wild birds and small animals, making it an environmentally friendly product that coexists with nature.

• Renovation and repair methods