Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.
61～90 item / All 894 items
Groundbreaking greening block
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.
Easy partial replacement! Deflection and adhesion connecting plate.
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.
Products with JIS certification are easier to install compared to gap blocks! Significant reduction in construction time!
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.
The block cuts prevent weed growth! An environmentally friendly and reliable weed control technology.
The "Weed Control Block" is a concrete secondary product that causes an imbalance in the plant growth mechanism (plant hormones), leading weeds to stop their own growth. The block is designed with cuts that oppose the natural growth direction of plants, known as "tropism," creating a joint structure that directs the roots, stems, and buds of plants in the opposite direction of their natural growth. This blocks the direction of elongation, halting weed growth. *The weed control technology of the "Weed Control Block" received the "Environmental Award" in the 25th fiscal year and was selected for the Excellence Award. 【Features】 ■ The joint structure of the block interrupts the direction of plant elongation, stopping growth. ■ The weed control effect continues even if the joints separate. ■ Effective for pollen allergy measures and ensuring safety on school routes. ■ Reduces maintenance costs. ■ Maintains the aesthetics and safety of road environments. ● For more details, please contact us or download the catalog.
This is an underground box that is buried in the ground for cable connection work and protection of connection points.
The "FK-style Hand Hole Block Hand Hole" is an underground box that is buried underground for cable connection work and protection of connection points. Since a steel frame is pre-installed in the CR, there is no need for on-site pouring, resulting in a neat finish. It allows for the opening of the road simultaneously with installation, which helps alleviate traffic and shorten construction time. By replacing the iron cover, it can be differentiated according to the applicable load. Additionally, various decorative covers that harmonize with the landscape can also be installed. 【Features】 - Ensures safety during work - Simple design and construction, allowing for labor-saving - Highly reliable and economically efficient - Easy height adjustment using a raising ring - Internal fittings can be easily installed due to embedded inserts For more details, please contact us or download the catalog.
Partial removal is possible, making replacement and relocation easy! The drainage holes also contribute to improving road drainage!
The "GU Block" movable guardrail allows for partial removal from any location, making maintenance (replacement) and relocation tasks very easy—it's a groundbreaking product! Additionally, it features drainage holes that improve road drainage and prevent water pooling. 【Reasons to Choose This Product】 - The intermediate blocks can be easily removed, simplifying replacement and relocation! - Equipped with "drainage holes" to prevent water pooling and achieve high drainage performance. - Does not use end blocks, making it strong and safe. - The blocks are long, reducing the number of installations and shortening construction time. *For more details, please download the PDF or feel free to contact us.
Belt worker anchor block
We have prepared a lineup of concrete block bands and slope stabilization works for slope protection construction, allowing for installation tailored to various applications. 【Features】 ○ Eliminates the difficulties of formwork assembly and ready-mixed concrete placement ○ Improved work efficiency by using lifting jigs ● For other functions and details, please download the catalog.
Seawall block, environmental block (environmental conservation type stacking block)
Filling the hollow section with vegetation soil bags to cultivate plants while creating a livable environment for small animals like fireflies. 【Features】 ○ Suitable for river landscapes ○ The block body has a 3:1 slope, improving workability ● For other functions and details, please download the catalog.
Large blocks with good workability as the products stand independently when installed at slopes of 3, 4, and 5 degrees!
We would like to introduce the "KP Large Block" that we handle. The "Low Retaining Wall" type features protrusions on the product, while the "High Retaining Wall" type uses guide pins to prevent shifting and ensure stability. Additionally, since the back wall is integrated, there is no need for a backing formwork, allowing for effective pouring of ready-mixed concrete. 【Features】 ■ Improved workability with the installation of 2 blocks per square meter ■ The product stands independently during construction with 3:1, 4:1, and 5:1 slopes, enhancing workability ■ Using dedicated lifting equipment for the installation of decorative blocks ensures that the blocks can be installed reliably, easily, and safely, improving workability and safety ■ Natural stone surfaces are adopted to better match the natural environment *For more details, please refer to the PDF document or feel free to contact us.
High durability specifications that demonstrate excellent performance in acidic environments and oceans! It suppresses cracking after curing.
"Hybrid Mortar (Acid and Salt Resistant)" is a product with high viscosity and water retention, offering excellent adhesion to substrates and stable bonding strength. It demonstrates outstanding performance in acidic environments and marine conditions. It is used for repairs in wastewater treatment facilities, manholes, and corrosion caused by hydrogen sulfide. Utilizing the characteristics of a special pozzolanic fine powder with high filling effect of ultra-fine particles, it shows acid resistance and high durability. 【Features】 ■ The hardened body has a dense structure, providing excellent durability. ■ Suppresses cracking after hardening. ■ High viscosity and water retention lead to excellent adhesion to substrates and stable bonding strength. ■ Available in thin coat (salt and acid resistant), thick coat (salt and acid resistant), and thick coat (salt resistant) options. *For more details, please refer to the PDF document or feel free to contact us.
Retaining wall T-block
Simplification and Speeding Up of Construction Block walls and cast-in-place retaining walls are extremely complex to work with, but the method using "T-shaped blocks" simplifies the work, eliminating the need for skilled labor and allowing for faster construction. 【Features】 ○ Shortened Construction Period With the method using "T-shaped blocks," after the foundation concrete is poured, the products are brought to the site, positioned according to the plan, inserted into the rebar insertion holes, and filled with mortar, completing the process. This allows for a significant reduction in construction time. ○ Uniformity of Products "T-shaped blocks" are secondary products manufactured in JIS-certified factories with strict quality control, ensuring high strength and uniform quality, making them very safe blocks. ● For other functions and details, please contact us.
Retaining wall T-shaped block
It is a certified product of the Civil Engineering Research Center and can be constructed without requiring special skills. 【Features】 ○ It has performance equivalent to that of cast-in-place reverse T-walls and can reduce construction costs by about 10%. ○ It does not require scaffolding, allowing for safe work and significant shortening of construction time. ○ Backfilling can be done parallel to the block structure, eliminating the need for work at heights. ● For other functions and details, please contact us.
Reduce construction costs with labor-saving and speed-up! It stands independently with a 5-degree slope and can be easily constructed with machinery!
"Antler" is a self-supporting block that consists of large blocks, one per square meter, capable of reaching a height of approximately 5 meters. It can be used with the design methods according to the standards of conventional retaining wall blocks. The foundation part is precast, allowing for further labor savings and a reduction in construction time. For more details, please refer to the related catalog. 【Features】 ■ Large block, one per square meter, capable of a height of approximately 5 meters ■ Usable with design methods according to the standards of conventional retaining wall blocks ■ Self-supporting with a 5% slope, easily constructed with machinery ■ Labor-saving and expedited, reducing construction costs ■ Adopts a natural stone surface, considering harmony with the environment *For more information, please refer to the PDF materials or feel free to contact us.
Significant reduction in construction time! At the construction site, special tasks such as rebar, concrete, and formwork are hardly used!
The "Box-type Retaining Wall" is a cantilever block with a flexible structure that can prevent collapse by allowing the wall to move slightly in response to soil pressure during an earthquake. It has obtained the Construction Technology Certification (No. 0327) from the Public Interest Incorporated Foundation Civil Engineering Research Center. It can also consider ecosystem preservation through planting or natural greening using each small step. Please contact us regarding the applicable height. 【Features】 ■ Obtained Construction Technology Certification (No. 0327) from the Public Interest Incorporated Foundation Civil Engineering Research Center ■ Significant reduction in construction time ■ The product can be used in reverse, making curved construction easy ■ Ecosystem preservation can be considered through planting and natural greening using each small step ■ Maximum retaining wall height in construction achievements: 21m *For more details, please refer to the PDF materials or feel free to contact us.
Demonstrates permeation and water collection effects! The construction can be done extremely easily and quickly with a two-sided water channel!
The "Prefab Water Channel Type A" uses flat panels and has a structure where the columns extend to the water channel surface, making it an economical water channel. Installation is extremely simple and quick, and it has a robust structure even on weak ground. Additionally, it allows for easy replacement and repurposing, demonstrating infiltration and water collection effects. We offer a lineup that includes Type A arms, standard panels, semi-circular panels, cut-out panels, and drop panels, so please feel free to contact us for more information. 【Features】 ■ Uses flat panels ■ Economical design with columns extending to the water channel surface ■ Strong structure even on weak ground ■ Easy to replace and repurpose *For more details, please refer to the PDF materials or feel free to contact us.
A strong structure even on weak ground! Introducing an economical dual-sided waterway that demonstrates infiltration and drainage effects.
The "Prefab Water Channel Type B" uses socket panels, has a smooth inner surface without irregularities, and features a large flow cross-section. Installation is extremely simple and quick, and it has a robust structure even on soft ground. It allows for easy replacement and repurposing, demonstrating infiltration and water collection effects. In addition to the Type B arm and standard socket panels, we also offer notched socket panels and drop socket panels. 【Features】 ■ Uses socket panels ■ Smooth inner surface without irregularities and a large flow cross-section ■ Extremely simple and quick installation ■ Easy to replace and repurpose *For more details, please refer to the PDF materials or feel free to contact us.
By changing the cross-section of the flow from circular to rectangular, we aim to reduce weight and improve constructability and cost-effectiveness!
The "Rain Collector" is a longitudinal pipe for drainage ditches designed for permeable pavement, featuring four drainage holes and two horizontal grooves, which enhances its drainage functionality. The drainage holes are elongated, allowing for the drainage of water that has permeated into the base layer. Additionally, by changing the flow cross-section from circular to rectangular, we have achieved weight reduction, improving both constructability and cost-effectiveness. 【Features】 ■ Enhanced drainage functionality due to four drainage holes and two horizontal grooves ■ Elongated drainage holes allow for the drainage of water that has permeated into the base layer ■ Flow cross-section changed from circular to rectangular to reduce weight and improve constructability and cost-effectiveness *For more details, please refer to the PDF document or feel free to contact us.
By opening the mouth, vegetation is possible! The faux stone pattern on the product surface blends well with the surrounding landscape.
The "Parallel Block" is a self-supporting environmental block designed for a 10% slope. With openings at the four corners and top and bottom, it allows for vegetation. The stone-like pattern on the surface blends well with the surrounding landscape. Additionally, if soil erosion is a concern, it can be used in combination with materials such as coconut fiber sheets. 【Features】 ■ Self-supporting environmental block suitable for a 10% slope ■ The stone-like pattern on the surface blends well with the surrounding landscape ■ Allows for vegetation through openings at the four corners and top and bottom ■ Can be used in combination with materials such as coconut fiber sheets if soil erosion is a concern *For more details, please refer to the PDF document or feel free to contact us.
It is possible to construct embankments with excellent permeability! It can accommodate embankments with a 5% slope and a 10% slope!
"Re-Block" is a cage-type revetment block that allows for the insertion of crushed stone inside the product. It enables the construction of revetments with excellent permeability. It can accommodate 5:1 and 10:1 slope revetments. Additionally, the relief on the surface of the product takes aesthetics into consideration. [Features] ■ Cage-type revetment block that allows for the insertion of crushed stone inside the product ■ Enables the construction of revetments with excellent permeability ■ Compatible with 5:1 and 10:1 slope revetments ■ Aesthetically considerate due to the relief on the surface of the product *For more details, please refer to the PDF document or feel free to contact us.
Slip resistance value BPN60 or higher secured! Excellent workability due to the two-in-one design, ensuring high safety!
The "Step Block" is a two-step integrated stair block. It features a slip-resistant surface (ensuring a slip resistance value of BPN 60 or higher) for safety during ascent and descent. In riverbank protection, it excels in safety by using connecting rebar. 【Features】 ■ Two-step integrated stair block ■ Slip-resistant surface (ensuring a slip resistance value of BPN 60 or higher) for safety during ascent and descent ■ Excellent workability due to its two-step integrated design ■ Superior safety in riverbank protection by using connecting rebar *For more details, please refer to the PDF document or feel free to contact us.
Easy to install with dedicated connecting fittings! Can be used as a vegetation-friendly connecting block.
"Free Block" is a product that enables vegetation recovery by filling the faux stone joint areas with locally sourced soil. It can be used as a vegetation-friendly interlocking block. The product type can be selected according to the intended use. Additionally, installation is easy with dedicated connecting hardware. 【Features】 ■ Enables vegetation recovery by filling the faux stone joint areas with locally sourced soil ■ Can be used as a vegetation-friendly interlocking block ■ Allows for interlocking of products, protecting slopes as a group structure ■ Easy installation with dedicated connecting hardware ■ Product types can be selected according to the intended use *For more details, please refer to the PDF materials or feel free to contact us.
The products can be connected, protecting slopes as a group structure! Made of natural stone, they excel in aesthetic appeal.
"Natural Stone" is a slope protection block that embeds natural stones on its surface. The natural stones on the product's surface enhance its aesthetic appeal and harmonize with the environment. The product can be connected, providing protection for slopes as a collective structure. [Features] - Slope protection block with natural stones embedded on the surface - Excellent aesthetic appeal and harmony with the environment due to the natural stones on the product's surface - Connectable product that protects slopes as a collective structure *For more details, please refer to the PDF materials or feel free to contact us.
All construction work is to be done only from the land side! By using machinery, efficiency can be improved, allowing for a significant reduction in construction time!
Introducing the "Kasa Con Wall," which has achieved precast technology. By utilizing machinery, efficiency is improved, allowing for significant reductions in construction time. Skilled labor such as formwork and rebar work on the river side is no longer necessary. Additionally, since all construction work is done from the land side, it is less affected by water levels, flow rates, flow volumes, and wind speeds. 【Features】 ■ No need for skilled labor such as formwork and rebar work on the river side ■ Less affected by water levels, flow rates, flow volumes, and wind speeds ■ The embedded formwork reduces waste materials from formwork, eliminating the need for bottom formwork that was difficult to manufacture ■ Surface relief enhances aesthetics and harmonizes with the surrounding environment *For more details, please refer to the PDF document or feel free to contact us.
The precast construction of the upper structure of the sheet pile mooring quay, being implemented in harbor works, has been realized!
The "Port Wall" is a precast sheet pile block for mooring that allows for efficiency improvements and significant reductions in construction time through mechanical work. Skilled tasks such as formwork and rebar work on the sea side are not required. Since all construction work is done from the land side, it is less affected by tidal fluctuations. 【Features】 ■ Efficiency improvements and significant construction time reductions through mechanical work ■ No need for skilled tasks such as formwork and rebar work on the sea side ■ All construction work is done from the land side only ■ Less affected by tidal fluctuations ■ Reduction of formwork waste, and no need for bottom formwork that was difficult to manufacture *For more details, please refer to the PDF materials or feel free to contact us.
Improvement of construction workability and enhancement of the working environment! Concrete walls that can be installed on surfaces such as steel sheet piles.
The "Exterior Panel" is a concrete wall for sheet piles that allows for the selection of specifications and relief patterns, enabling consideration of harmony with the surrounding environment. It enhances the aesthetics of the steel sheet pile front, improves workability, and creates a better working environment. 【Features】 ■ Concrete wall that can be installed on the surface of steel sheet piles, etc. ■ Enhances the aesthetics of the steel sheet pile front. ■ Allows for the selection of specifications and relief patterns, enabling consideration of harmony with the surrounding environment. ■ Improves workability and creates a better working environment. *For more details, please refer to the PDF materials or feel free to contact us.
In shallow areas, it creates a babbling effect and increases dissolved oxygen levels! A large faux stone pattern is applied to the surface.
"EP Rock" is a block that has flexibility and can be used for stabilization and as a protective floor. The surface of the block features large simulated stone patterns, creating a beautiful landscape. In shallow water areas, it creates a babbling effect and increases the dissolved oxygen levels. 【Features】 - Has flexibility and can be used for stabilization and as a protective floor - The surface of the block features large simulated stone patterns, creating a beautiful landscape - In shallow water areas, it creates a babbling effect and increases the dissolved oxygen levels *For more details, please refer to the PDF document or feel free to contact us.
It is a concrete secondary product made from natural stones that blends into the landscape and is also friendly to aquatic organisms.
Cost reduction at construction sites has been achieved with the river environment, thinned wood products, and natural stone block series. 【Features】 ○ Blocks made from natural stone are pre-assembled, allowing construction to proceed without the need for skilled labor. ○ By using natural stone, the bank strength can be maintained without disrupting the beautiful landscape of the area. ○ One of the features is that it is designed to allow coexistence without changing the habitat for animals and plants. ○ It is suitable for various construction projects such as roads and bank retaining walls. ● For other functions and details, please contact us.
[Case Study] Improving upstream efficiency with a unique design! The terraced fishway solves the issues of traditional fishways.
In conventional fishways, there were challenges such as difficulty in guiding fish to upstream routes and sediment accumulation within the fishway, which reduces its functionality. These issues are addressed by Yamatazumi's "Terraced Rice Field Fishway," which has a unique shape utilizing natural stones. We also provide explanations about the terraced rice field fishway, consultations on fishway design (such as creating drawings and quantity calculation sheets), proposals, and assistance, so please feel free to contact us. 【Case Study】 ■ Project Name: Heisei 14 Year Shirakawa Tsukui Te Dam Fishway Improvement Project ■ Construction Location: Shirakawa (Jinnai, Ozu Town, Kikuchi District, Kumamoto Prefecture) ■ Construction Photos: Please see the construction photos on this page. 【Points for Choosing the "Terraced Rice Field Fishway"】 ■ Fish can ascend from any direction due to the 180-degree design, preventing fish stagnation. ■ It has a maintenance-free structure that prevents sediment accumulation inside the fishway. ■ Thanks to its unique structure that can adapt to changes in water levels, it allows water to flow from the collection ditch beneath the floor during low water conditions. ■ By realizing the concrete secondary productization as terraced rice field fishway blocks, we have achieved stable quality and simplified construction for the fishway. *For more details, please contact us or download the catalog to view.
[Case Study] Improving upstream efficiency with a unique design! The terraced fishway solves the issues of conventional fishways.
In conventional fishways, there have been challenges such as difficulty in guiding fish to upstream routes and the accumulation of sediment within the fishway, which reduces its functionality. These issues are addressed by Yamatazumi's "Terraced Rice Field Fishway," which features a unique shape utilizing natural stones. We also provide explanations about the terraced rice field fishway, consultations on fishway design (such as drawing creation and quantity calculation), proposals, and assistance, so please feel free to contact us. 【Case Study】 ■Project Name: Heisei 16 Fiscal Year Ochiai Riverbank Disaster Recovery Work ■Construction Location: Ibi River (Ochiai area, Ibi Town, Ibi County, Gifu Prefecture) ■Construction Photos: Please see the construction photos on this page. 【Reasons to Choose the "Terraced Rice Field Fishway"】 ■Fish can ascend from any direction due to its 180-degree accessibility, preventing fish stagnation. ■It has a maintenance-free structure that prevents sediment accumulation inside the fishway. ■Thanks to its unique design that can adapt to changes in water levels, it allows water to flow from the collection ditch under the floor during low water periods. ■By realizing concrete secondary products as terraced rice field fishway blocks, we have achieved stable quality and simplified construction for fishways. *For more details, please contact us or download the catalog to view.
[Case Study] Improving upstream efficiency with a unique design! The terraced fishway solves the issues of traditional fishways.
In conventional fishways, there are challenges such as difficulty in guiding fish to upstream routes and the accumulation of sediment within the fishway, which reduces its functionality. These issues are addressed by Yamatazumi's "Terraced Rice Field Fishway," which features a unique shape utilizing natural stones. We also provide explanations of the terraced rice field fishway, consultations on fishway design (including drawing creation and quantity calculation), proposals, and assistance, so please feel free to contact us. 【Case Study】 ■ Project Name: Eco 3-2 No. 2, Prefectural Eco River, Kase River, etc. ■ Construction Location: Kase River (Yabuki Town, Ibi County, Gifu Prefecture, near Tanigumi Nagase) ■ Construction Photos: Please see the construction photos on this page. 【Points for Choosing the "Terraced Rice Field Fishway"】 ■ Fish can ascend from any direction due to the 180-degree design, preventing fish stagnation. ■ It features a maintenance-free structure that prevents sediment accumulation inside the fishway. ■ Its unique structure can accommodate changes in water levels, allowing water to flow from the collection ditch beneath the floor during low water periods. ■ By realizing the concrete secondary productization as terraced rice field fishway blocks, we have achieved stable quality and simplified construction for the fishway. *For more details, please contact us or download the catalog to view.
