本間コンクリート工業 List of Products and Services

This product is a vertical wave-dissipating block that maintains its integrity and is extremely stable, allowing the rear uneven parts to exert sufficient effectiveness and enabling the blocks to be stacked in a staggered manner. It can construct a structure with vertical wave-dissipating functions, which reduces the reflection of incoming waves, enhances the calmness within the port, and increases the usability of wharves, quays, and other facilities. 【Features】 ■ Vertical wave-dissipating structure ■ High stability ■ Low reflection rate ■ Easy to install ■ Cost-effective *For more details, please refer to the PDF materials or feel free to contact us.

• Various blocks

"Chameleon" is an environmentally friendly material that blends into various waterside natural environments and helps prevent natural disasters. Our company acts as a sales agent for Chameleon in six prefectures in Tohoku and Niigata Prefecture. The three elements of "concrete mesh," "extraction prevention material," and "filling soil" work together to protect land from water erosion while regenerating a lush natural environment that utilizes the gaps in the concrete mesh. It has already demonstrated its effectiveness as a protective material for various waterside environments, safeguarding nature and safety. 【Features】 ■ Scrum effect through hinge connection ■ Protects the safety and ecosystem of watersides ■ Capable of regenerating a lush natural environment utilizing the gaps in the concrete mesh ■ Strong against flow and fits well with the land ■ Contributes to the creation of safe and beautiful waterside environments ■ No temporary closure required as underwater construction is possible *For more details, please refer to the PDF document or feel free to contact us.

• Port supplies

This product is a concrete block aimed at achieving a borderless integration of civil engineering and fisheries, equipped with multifunctional capabilities for creating seaweed beds, stabilizing structures, and nurturing juvenile aquatic organisms for breeding and cultivation. It has a complex cross-sectional shape, a large surface area, and is suitable for promoting the growth of juvenile species such as abalone, turban shells, and sea urchins, as well as for creating habitats. Additionally, by extending the formwork, height adjustments are possible, allowing for heights that meet the conditions of the installation site. 【Features】 - The low center of gravity design provides a large effective installation area, resulting in good stability against tipping. - Easy to manufacture and install. - Used as a submerged breakwater, it does not harm the natural environment. - The large surface area of the block facilitates the attachment and growth of seaweeds, making it suitable as an artificial seaweed bed. *For more details, please refer to the PDF materials or feel free to contact us.*

• Various blocks

The "Beach Rock P Type" is a gently sloped revetment block that can be expected to have sufficient effects not only for wave dissipation but also for maintaining and restoring the beach and improving the natural environment. As a gently sloped revetment, it effectively addresses coastal erosion and can also be used for stabilizing rivers and coastlines. Additionally, by changing the arrangement pattern of the blocks, it is possible to create beautiful coastal designs. 【Features】 ■ The interlocking of the blocks provides a stable structure. ■ It weakens the flow velocity of returning currents, preventing scouring at the toe. ■ It can also be used as a ramp since there are no protrusions on the surface. ■ It can be used in combination with stepped beach rocks. *For more details, please download the PDF or contact us.

• Various blocks

"Sea Cross" is a covering and anchoring block that incorporates the economic and construction aspects into the "Cross Block," which focuses on the growth and proliferation of seaweed and the habitat of aquatic organisms. Even when used in rivers, it has more depressions in the shadowed areas compared to other blocks and stones, making it an excellent habitat for aquatic organisms. Additionally, the sides of the block have significant irregularities, which enhances the effect of reducing water flow. 【Features】 ■ Retains all the characteristics of the conventional "Cross Block" ■ Reduces uplift pressure by creating voids at the bottom of the block ■ Offers excellent stability due to its low center of gravity ■ Economical due to fewer units required per construction area ■ Simple to manufacture and install *For more details, please download the PDF or contact us.

• Various blocks

The "Shake Block" is a block developed through years of research and development based on the experience of its creators. It features a truncated tetrahedron shape with beveled edges, where each ridge and the central part are excavated to improve the interlocking by altering the cross-section of the legs physically and hydraulically. This design pursues superior stability, wave attenuation, constructability, and cost-effectiveness. Hydraulic experiments have been conducted at Tokai University, Kobe University, Japan Port Consultant Co., Ltd., and the Central Research Institute of Electric Power Industry, where its excellence has been recognized in every case. Since its adoption in 1967, it has shown remarkable growth, and the results of these constructions have yielded positive outcomes that demonstrate the superiority of the hydraulic experiments. 【Features】 ■ High stability ■ Significant wave attenuation effect ■ Easy to manufacture and construct ■ Economical *For more details, please download the PDF or contact us.

• Various blocks

"Shakevo" is a block based on the proven "Shakeblock," which improves the interlocking and void ratio by adding a protruding structure to the legs, pursuing superior stability, cost-effectiveness, and workability. Achieving a void ratio of 63.0% allows for a reduction in the required quantity, making construction costs economical. Additionally, achieving a KD value of 13.0 improves the stability of the embankment, enabling a reduction in the required mass. 【Features】 ■ Excellent cost-effectiveness ■ Excellent stability ■ Excellent workability ■ Contributes to the improvement of aquatic environments *For more details, please download the PDF or contact us.

• Various blocks

The "Truncated Cone Shake Block" is a block based on our "Shake Block," designed to pursue superior stability, workability, and cost-effectiveness. In coastal and harbor areas, it is used for artificial reefs, submerged breakwaters, and armor/anchor blocks, while in rivers, it is adopted for stabilization, bed stabilization, and bed protection blocks. 【Features】 ■ Can be connected with rebar in the mesh, offering excellent flexibility ■ By arranging them, the legs of each block interlock, making it difficult for the blocks to dislodge ■ The shape of the block provides high stability ■ Economical, just like the "Shake Block" *For more details, please download the PDF or contact us.

• Various blocks