高村建材工業 List of Products and Services

Our company manufactures "special manholes." We can produce various square-sized manholes, special manholes, and rectangular assembly shafts upon order. We replace on-site casting with precast products, providing high-quality construction and shortened construction periods. 【Features】 ■ Provides high-quality construction and shortened construction periods ■ Capable of manufacturing various square-sized manholes, special manholes, and rectangular assembly shafts ■ Confirm design conditions, perform structural calculations, and determine thickness and reinforcement, then submit manufacturing drawings (approval drawings) based on the initial plans ■ For large items, we manufacture using split products (for assembly) that pose no structural issues *For more details, please refer to the PDF materials or feel free to contact us.

• Other earthworks, foundation works, and exterior floors
• Dam construction
• Water Supply Facilities

"Radahole" is a prefabricated manhole used for the maintenance and management of sewer pipelines, as well as for the storage and infiltration of rainwater. Each component can be suspended from three or more points, allowing for rapid installation in a nearly level position. It is joined with a special silicone resin adhesive called "Radaseal," making it capable of withstanding seismic motions of Level 1 and Level 2. 【Features】 ■ Manufactured and shipped under high quality standards at certified factories ■ Performance category I can be installed up to 5m ■ Performance category II can be installed up to 10m ■ Capable of withstanding seismic motions of Level 1 and Level 2 ■ The watertight performance of the joints can withstand water pressure of 0.05MPa for category I and 0.10MPa for category II *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body
• Water and sewerage pipe fittings
• Sewerage facilities

The "Next Generation Underground Utility Duct" is a facility designed to accommodate power lines and optical fibers during the underground installation of electrical wires. Our company promotes a system for undergrounding electrical wires using precast utility ducts, aiming for beautiful streetscapes and disaster-resistant urban development. With the removal of utility poles and the simultaneous improvement of roads, not only can sidewalks be used more widely, but visibility at intersections also improves, creating a comfortable barrier-free environment where pedestrians, strollers, and wheelchairs can pass through safely. 【Features】 ■ Easier passage for both people and vehicles ■ Streetscapes become neat and beautiful ■ Creating disaster-resistant cities ■ Enhancing the safety and reliability of information networks *For more details, please refer to the PDF materials or feel free to contact us.

• Ready-mix concrete
• Road facilities

"All Weather" is a box drainage system designed with an increased number of side drainage holes to accommodate permeable pavement, allowing for more even and efficient drainage. The position of the side drainage holes can be adjusted to accommodate various pavement thicknesses. To ensure smooth water flow during low water levels, the bottom of the pipe channel is shaped in an R-type, minimizing sediment accumulation even during prolonged good weather. Additionally, we offer options that place greater emphasis on anti-slip effects, such as the "All Weather Non-Slip Type" and "All Weather Bicycle Path Compatible EJ." 【Features】 ■ Allows for more even and efficient drainage ■ The position of the side drainage holes can accommodate various pavement thicknesses ■ Excellent at collecting water runoff, minimizing water accumulation in the entry areas ■ Reduces sediment accumulation even during prolonged good weather ■ Can be used as a bicycle path compatible type with an apron width of 80mm and an apron slope of 2% *For more details, please refer to the PDF materials or feel free to contact us.

• Gutters and U-shaped gutters
• Exterior and paving materials <General>
• Drainage material

We would like to introduce the DCJ box culverts 'K type/T type' that we handle. The "K type (box culvert with flexible joints)" has individual flexibility for each product, ensuring sufficient water tightness. When ground conditions are good, it exhibits seismic performance due to the small amount of extraction and bending angles caused by seismic motion. The "T type (box culvert with seismic joints)" satisfies the necessary extraction amount by increasing the insertion length of the joint section against permanent deformation of liquefied ground due to lateral flow and permanent deformation of sloped ground in artificially modified areas, ensuring sufficient water tightness. 【Features】 ■ Available in two types, "K type" and "T type," allowing for differentiation based on application ■ Capable of minimizing the extraction amount and bending angles occurring at each joint ■ Excellent followability, compressive recovery, and abrasion resistance ■ Maintains high water tightness (0.06MPa) even during extraction due to seismic motion or after bending *For more details, please refer to the PDF document or feel free to contact us.

• Water Supply Facilities
• Sewerage facilities
• Fittings

The "Flexible Cap Comb Block" is a precast concrete product that can flexibly respond to the demands of the site. In addition to steel sheet piles (standard, wide, and hat-shaped), it also offers a lineup that accommodates concrete sheet piles, making it suitable for a wide range of applications. By increasing the size of the products and simplifying the construction process, continuous construction can be achieved without delays, which also reduces total costs. Additionally, we offer "reinforced concrete sheet piles" that have high impact resistance. 【Features of the Flexible Cap Comb Block】 ■ A product lineup that accommodates various types of sheet piles ■ Significant improvement in constructability ■ Reduction of total costs *For more details, please refer to the PDF document or feel free to contact us.

• Concrete sheet piles and piles

The "Permeable Slab BFB" uses porous concrete with excellent permeability, covered with permeable asphalt pavement, to create a comfortable road without puddles or uneven surfaces on sidewalks or road shoulders. It allows for low-cost construction by utilizing existing ditches and minimizes waste materials. With a wide variety of products, we can recommend suitable options based on necessary functions, sizes, load conditions, and pavement thickness. Additionally, we offer "Concrete RC Slabs," which ensure shortened construction periods, aesthetic appeal, and safety through secondary products. 【Features of Permeable Slab BFB】 ■ Uses porous concrete with excellent permeability ■ Achieves roads without puddles or uneven surfaces on sidewalks or road shoulders ■ Low-cost construction by utilizing existing ditches ■ Minimizes waste materials in construction *For more details, please refer to the PDF materials or feel free to contact us.

• Other flooring materials
• Special flooring/outdoor
• Barrier-free facilities

The "KL Wall Type 3" is an L-shaped retaining wall certified by the Minister of Land, Infrastructure, Transport and Tourism, which can be installed where fence installation is needed and where considerations for fall prevention are necessary. Since the front wall is vertical, it allows for effective use of land up to the property boundary. With a rational design, it features a simple structure that is easy to construct and economically advantageous. Additionally, we also offer lightweight type retaining walls such as "T-LL Wall" and "ALW II." 【Features】 ■ Effective use of residential land area ■ Economical cross-section design ■ Shortened construction period and labor-saving ■ L-shaped retaining wall as a landscape material ■ Consideration for safety *For more details, please refer to the PDF materials or feel free to contact us.

• Retaining wall
• Concrete Retaining Wall

The "T-S Type Seismic Resistant Water Storage Tank 40m3・60m3" is a precast concrete seismic water storage tank that excels in water-tightness and seismic resistance. The joints of each block are tightened with PC steel bars, and the structure is designed for seismic resistance. Each component of the precast concrete product is composed of horizontal joints, and the joining surfaces feature an eye-jack structure with butyl rubber adhesion, making assembly easy and allowing for high construction efficiency with a small number of workers. 【Features】 ■ Simplification and speed of construction ■ Shortened construction period and safety ■ Water-tightness effectiveness ■ Seismic resistance effectiveness *For more details, please refer to the PDF materials or feel free to contact us.

• Flood prevention facilities, fire tanks, and flood control ponds
• Water Supply Facilities
• Sewerage facilities