List of Road, bridge and tunnel materials products

100% recycled gypsum derived from waste gypsum boards is reused as raw material, achieving effective carbon neutrality during manufacturing!

• Gypsum board and moldings

Since the construction-generated soil will be recycled on-site, the disposal costs for leftover soil and the costs for new purchases will be significantly reduced. 【Disaster Prevention】

• Special Construction Method

Supports various types of bridges, with numerous achievements nationwide! High water resistance, long-term durability of 50 years, and easy installation.

• Bridge Materials

Explaining the key points for selecting joints for bridges! Technical materials are available as a gift!

• Bridge Materials

Rain and water resistant!! Bottom-modified solvent-free asphalt cold mix.

• Paving Materials

From drainage works and underground irrigation systems to water quality filtration materials. Leave the tile chip installation to us.

• Japanese roofing tiles
• Paving Materials
• Pavement construction

Contributing to leak prevention and spalling measures for tunnels and culverts, centered around the EF series that meets NEXCO standards.

• Tunnel Materials

Contributes to leak prevention measures for tunnels and culverts; can be installed without protruding anchors, even in sites with strict sidewalk and construction limits.

• Tunnel Materials

The panel body uses aluminum composite panels to achieve fire resistance. It contributes not only to tunnels but also to leak prevention measures within building structures.

• Tunnel Materials

It is possible to reliably collect and manage water leakage from the walls of tunnels and underground structures in a horizontal direction! Contributes to leakage prevention measures for tunnels, culv...

• Tunnel Materials

Depending on the leakage situation, it is possible to cover the leakage points widely and accurately implement surface drainage treatment, contributing to leakage countermeasures for tunnels, culverts...

• Tunnel Materials

We would like to introduce a case where we produced and installed a photoluminescent sign plate!

• Road signs and road accessories

We would like to introduce a case where foundation blocks were manufactured with the same dimensions as part of the restoration work.

• Road signs and road accessories

Compatible with sites with strict construction limits, such as single-track tunnels. Embedded drainage channel 'RD (Rubber Drain) Series' (B4 method).

• Tunnel Materials

[NEXCO standard compliant] Combines leak prevention and spalling prevention, with no leakage from the main body due to its integrated structure, contributing to leak prevention in tunnels, culverts, e...

• Tunnel Materials

Designed with joints for easy construction! When placed with a ton, it automatically comes together.

• Gutters and U-shaped gutters

After construction, if the road surface height does not match, we will provide proposals tailored to the site.

• Road facilities

There is a slit running through the center with a 1% slope from the outside!

• Paving Materials

Restricted area protective fence! Dimensions are flexible, U-shaped fence will be made from supplied materials.

• Protective fence

Contributing to fall prevention and safety measures! We provide safety and peace of mind no matter how harsh the usage environment is.

• Tunnel Materials

Since its birth over 60 years ago, the locking nut "U-NUT" has continued to evolve in its locking performance, durability, and vibration resistance, backed by a wealth of trust and achievements.

• Tunnel Materials

Eco heat treatment

• Snow melting equipment

This booklet explains the causes of bolt loosening and serves as a guide to understanding proper fastening methods.

• Road signs and road accessories

This is a grating that reduces the risk of caster (wheel) entrapment and slipping on rainy days.

• Grating

Prevent collisions with the door entrance and accidents caused by diagonal entry! Protective fence for automatic doors.

• Protective fence

This is a drainage cover plate made using PET fiber reinforced cement.

• Gutters and U-shaped gutters

Open the lid from today.

• Gutters and U-shaped gutters

GRC partition board

• Paving Materials

Ideal for converting side ditches into underground channels! Thin plates used as embedded forms for concrete covers [also suitable for partial repairs].

• Gutters and U-shaped gutters

Explaining the key points for selecting bridge joints! Technical materials are available as a gift!

• Bridge Materials

A new adoption has been decided for the steel deck slabs of the metropolitan expressway! It contributes to excellent water resistance and improved durability as a pioneering product.

• Bridge Materials

Can seal large gaps! Pressure management allows for adjustment of sealing surface pressure.

• Tunnel Materials

Examples of introducing LED evacuation signs that are useful for developing disaster prevention infrastructure to encourage evacuation actions!

• Road signs and road accessories

Unique solar power generation system! Case study of cordless illuminated evacuation signs.

• Road signs and road accessories

Maintaining visibility even during power outages! Case study on the introduction of LED evacuation signs with built-in solar panels.

• Road signs and road accessories

Permeability coefficient of 1.3 cm/s, with a void ratio of 40% for excellent drainage effect! Installing it reduces the risk of injury from falls.

• Grating

[Available for rent] Voice calls and equipment data communication are possible even in tunnels and caves where radio waves do not reach, using a smartphone.

• Tunnel Materials
• Welfare and medical equipment
• others

Introduction of products made with biomass plastics containing recycled plastics and plant-derived components.

• Protective fence

A mobile concrete production plant capable of manufacturing and supplying concrete on-site! Contributing to labor-saving and quality improvement at the site!

• Paving Materials

【In stock domestically】Highly popular! Firmly protects the pillars. Adjustable size from 150 to 375mm.

• Protective fence

To interchanges and smart interchanges! Efficient and low-cost snow melting with far-infrared rays.

• Snow melting equipment
• Exterior snow melting equipment

Easy setup! Prevents disruptions to ETC lane equipment caused by snowfall.

• Snow melting equipment
• Exterior snow melting equipment

For ensuring safety! It is very effective as a snow prevention measure at tunnel entrances.

• Snow melting equipment
• Exterior snow melting equipment

For snow accumulation and freezing prevention! It can be installed in a short period without road construction.

• Snow melting equipment
• Exterior snow melting equipment

For cost reduction! Snow melting through autonomous driving is possible, preventing the premature shutdown of ETC equipment.

• Snow melting equipment
• Exterior snow melting equipment

Free gift of a construction example collection! Easy-to-install and vibrant paving composite blocks.

• Secondary paving products