List of General civil engineering materials products

Are you putting off the "soundproofing and sound absorption" in your office? We are offering a document that explains the key points for improvement and the issues that can be resolved.

• Soundproofing/Shielding Unit

It can be quickly implemented in existing facilities such as outdoor areas and lockers where securing power is difficult. Rental options help reduce the costs of implementation and operation.

• Attendance management system

This is the comprehensive catalog of Rontai Co., Ltd.! It includes not only our own products such as vegetation sheets, mats, and sandbags, but also information on the necessity of slope greening.

• Slope protection material

■■Equivalent effect to vegetation substrate spraying work■■ Adheres well to steeply sloped surfaces■■

• Civil Engineering Sheet

■■ Equipped with jute net for scatter prevention ■■ Main constituent materials are biodegradable ■■

• Slope protection material

Is straw actually amazing!? I'll reveal the secrets of straw that are useful for slope greening! [Free materials available]

• Slope protection material

The tensile strength is over 500N/cm, which is five times the usual! It is a short fiber protective mat suitable as a waterproof layer protection mat that prevents mat deformation during and after con...

• Drainage material
• Waterproof sheet

Weather resistance and penetration resistance are usually over 1000N, which is twice as much! A shading protection mat for waste final disposal sites that also excels in impact resistance.

• Drainage material
• Waterproof sheet

The FP sheet is a non-woven fabric effective for separation, filtration, and reinforcement. It is also effective as an emergency water protection material in urgent situations.

• Drainage material
• Waterproofing work
• Roof and gutter construction

A very lightweight, sand gap-targeted, finely designed suction prevention agent with specified weight! It also has excellent permeability for the elimination of groundwater. *Catalogs will be provided...

• Drainage material
• Waterproofing work
• Roof and gutter construction

A type of palm fiber that returns to nature! Extremely lightweight, it serves as a suction prevention agent that contributes to the initial surface stability of embankments and excavations. *Free cata...

• Drainage material
• Waterproofing work
• Roof and gutter construction

You can choose from a wide range of products according to your needs, including washout prevention agents, surface drainage agents, and protective mats!

• Drainage material

Height 2m, unlimited width! A water barrier to protect parking lots from sudden heavy rain.

• Water stop

The key to long-term weed prevention is not to create even the slightest gap.

• Civil Engineering Sheet

It temporarily stores rainwater and gradually returns it to the earth (underground). It also plays a role in recharging groundwater.

• Concrete Retaining Wall

A flow control chamber that temporarily stores rainwater and other water in a reservoir and gradually releases it through an orifice box.

• Concrete Retaining Wall

Pump and valve storage box, well pit, pump pit. Please make use of it to address labor shortages and shorten construction periods on site!

• Concrete Retaining Wall

No waste materials, no environmental pollution! Achieving clean construction with unique technology.

• Gutters and U-shaped gutters
• Concrete Retaining Wall

Smooth movement, easy installation, and hassle-free safe removal! Reverse T-shaped retaining wall for stockyards.

• Concrete Retaining Wall

Minister of Land, Infrastructure, Transport and Tourism certified product compliant with the Soil Retention Regulation Law! An L-shaped retaining wall for residential construction with a 4cm cover for...

• Concrete Retaining Wall

A lightweight and sturdy compact water barrier boasting 33 times the water-stopping performance of sandbags!

• Water stop

Protect important buildings from water leakage. Acrylic-based high-pressure injection waterproofing system. Quick hardening response for sites troubled by recurring leaks, no matter how many times the...

• Waterproofing Agent

[Unit Net Construction Method] For slope stabilization work within apartment complexes. We also have a track record of lifting red zone restrictions! *Materials are currently being distributed*

• Slope protection material

Conditions during heavy rain disasters at unit net construction sites.

• Slope protection material

Blow catcher BCH-M series for easy handling of expansion water discharged from electric water heaters [sealed structure].

• Water heater Cooker IH
• Drainage material

Blow catcher BCH-K series for easy handling of expansion water discharged from electric water heaters [open structure]

• Water heater Cooker IH
• Drainage material

Strong and beautiful concrete products and methods. Unique and stylish paving materials that match any scene. Numerous case photos and technical information are also included.

• Concrete Retaining Wall
• Earthquake-resistant construction method
• Wall and rooftop greenery

Of course, it has high drainage capacity! An economical and high-efficiency product that excels in durability and lightweight design.

• Drainage and ventilation equipment
• Drainage material

Achieving leak prevention through increased adhesion strength with the concrete slab!

• Drainage and ventilation equipment
• Drainage material

Important "physical property values" when selecting weed control sheets. Introducing the testing methods and standards of Shirazaki Corporation!

• Civil Engineering Sheet

We will introduce a case study of the 'Take Guard Method,' which suppresses bamboo growth using a special sheet and dedicated pins, after 7 years.

• Civil Engineering Sheet

It is widely used in general embankments, retaining walls, coastal areas, reservoir banks, and bridge abutments!

• Bridge Construction
• Reinforced earth wall