List of Civil Engineering Materials products
- classification：Civil Engineering Materials
721～765 item / All 10006 items
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
"Using colorful natural decorative gravel on the pavement surface" High permeability! It creates a safe and comfortable walking environment as no puddles form on the walking surface even during heavy ...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! Achieving a safe and comfortable walking environment as no puddles form on the walking surface even during heavy r...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! It creates a safe and comfortable walking environment as no puddles form on the walking surface even during heavy ...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! Achieving a safe and comfortable walking environment as no puddles form on the walking surface even during heavy r...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! Achieving a safe and comfortable walking environment as no puddles form on the walking surface even during heavy r...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! It creates a safe and comfortable walking environment as no puddles form on the walking surface even during heavy ...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! Achieving a safe and comfortable walking environment as no puddles form on the walking surface even during heavy r...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! Achieving a safe and comfortable walking environment as no puddles form on the walking surface even during heavy r...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! It creates a safe and comfortable walking environment as there are no puddles on the walking surface even during h...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! Achieving a safe and comfortable walking environment as no puddles form on the walking surface even during heavy r...
- Paving Materials
"Using colorful natural decorative gravel on the pavement surface" High permeability! Achieving a safe and comfortable walking environment as no puddles form on the walking surface even during heavy r...
- Paving Materials
No external power supply needed! Sustainable solar watch.
- Office furniture
- Other park materials
- Decoration and performance supplies
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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
Ace of Asphalt Repair
- Reinforcement and repair materials
- Paving Materials
- Secondary paving products
■■ 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
Industry first! A duct hose that combines oil resistance and flame retardancy.
- Piping materials (plastic pipes)
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
A bridge joint with minimal shock during operation and low noise! Load-supporting steel expansion device.
- Bridge Materials
On February 26, 2026, an advertisement for the bridge expansion device "Hybrid Joint" was published in the Tohoku 6 Prefectures edition of the Sankei Shimbun, demonstrating a durability of 100 years (3LII type) verified by a third-party organization.
Crittec Industries Co., Ltd. published a newspaper advertisement (black and white, full-page 15 columns) for the bridge expansion device "Hybrid Joint" in the February 26, 2026 issue of the Sankei Shimbun Tohoku 6 Prefectures edition. In Japan, the number of bridges over 50 years old is rapidly increasing, making the longevity of bridges a critical issue. The expansion devices, which are considered a cause of bridge damage, require high water-tightness and long-term durability. Our expansion device "Hybrid Joint" offers multiple types tailored to different bridge types and conditions. Among them, the "Hybrid Joint 3LII type" has demonstrated a durability of 100 years in fatigue loading tests conducted by a third-party organization. It has successfully passed 12 million cycles of repeated loading at a maximum load of 260 kN, confirming performance equivalent to a 100-year design service life for bridges. We have numerous delivery records in the six Tohoku prefectures and can accommodate a wide range of bridge types, including steel and PC bridges. The special website linked to the advertisement allows for the review of detailed materials and inquiries or requests for documents. Please make use of it for comparing and considering bridge renewal and repair plans. Crittec Industries will continue to contribute to the longevity of bridges nationwide, starting with the Tohoku region.
The product height is low! Responding to the demand for low-height expansion devices! A thinness that fits within the typical pavement thickness: "Hybrid Joint TS Type."
- Bridge Materials
On February 26, 2026, an advertisement for the bridge expansion device "Hybrid Joint" was published in the Tohoku 6 Prefectures edition of the Sankei Shimbun, demonstrating a durability of 100 years (3LII type) verified by a third-party organization.
Crittec Industries Co., Ltd. published a newspaper advertisement (black and white, full-page 15 columns) for the bridge expansion device "Hybrid Joint" in the February 26, 2026 issue of the Sankei Shimbun Tohoku 6 Prefectures edition. In Japan, the number of bridges over 50 years old is rapidly increasing, making the longevity of bridges a critical issue. The expansion devices, which are considered a cause of bridge damage, require high water-tightness and long-term durability. Our expansion device "Hybrid Joint" offers multiple types tailored to different bridge types and conditions. Among them, the "Hybrid Joint 3LII type" has demonstrated a durability of 100 years in fatigue loading tests conducted by a third-party organization. It has successfully passed 12 million cycles of repeated loading at a maximum load of 260 kN, confirming performance equivalent to a 100-year design service life for bridges. We have numerous delivery records in the six Tohoku prefectures and can accommodate a wide range of bridge types, including steel and PC bridges. The special website linked to the advertisement allows for the review of detailed materials and inquiries or requests for documents. Please make use of it for comparing and considering bridge renewal and repair plans. Crittec Industries will continue to contribute to the longevity of bridges nationwide, starting with the Tohoku region.
A bridge expansion device proven to last 100 years! No replacement needed for new bridges for 100 years! Long-term water-tightness, maintenance-free [NEXCO specification compliant product].
- Foundation construction
- Bridge Materials
Recruitment of Ambassadors (a few positions available) for the "100-Year Bridge Project," which promotes the charm of civil engineering and bridges together.
The bridge expansion device manufacturer, Crittec Co., Ltd., is seeking a few ambassadors for the "100-Year Bridge Project," who are interested in the civil engineering and bridge fields and can share their appeal and social issues through social media. This initiative aims to raise awareness about the current state of aging social infrastructure and the importance of maintenance and management. We welcome individuals with interest or knowledge in civil engineering and bridges as ambassadors to collaboratively plan, create, and disseminate content, thereby promoting understanding and revitalization of social infrastructure as a whole. Would you like to share the interesting aspects and importance of social infrastructure through your perspective and creative activities? We welcome those who are engaged in creative activities or information dissemination related to civil engineering and social infrastructure, as well as those who wish to take on new challenges. The number of followers does not matter. Your "likes" and "messages" may connect to the future of social infrastructure. Please feel free to apply.
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By simply introducing it into ponds and reservoirs, we maintain an environment that is less likely to experience turbidity and odors caused by the massive proliferation of algae. We are currently recr...
- Other park materials
- Soil improvement material
A grating that has achieved weight reduction by adopting high-tensile steel.
- Grating
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The key to long-term weed prevention is not to create even the slightest gap.
- Civil Engineering Sheet
The material can be stored for 3 months! Using light-curing resin that hardens when exposed to light and acid-resistant glass fibers, high-strength FRP pipes can be constructed quickly.
- Water and sewerage pipe fittings
High-strength and flexible epoxy resin mortar
- Reinforcement and repair materials
- Secondary paving products
We manufacture and sell a variety of products such as hand holes, catch basins, well pits, special pits, floor slabs, and drop structures!
- Piping materials (concrete pipes)
Overcoming the 'transportation barrier' and 'construction schedule constraints.' Hybrid underground handholes: a fusion of strength, lightweight design, and speedy construction.
- Secondary paving products
"Full Custom Precast" that shapes your ideal design exactly as it is.
- Secondary paving products
The essential infrastructure for disaster prevention, joint utility ducts.
- Secondary paving products
"Stop, drain, accumulate" in a smarter way. A "corner-cutting drain" tailored to the conditions on site.
- Gutters and U-shaped gutters
A precise foundation for precision machinery. The ultimate storage space realized by factory quality.
- Gutters and U-shaped gutters
Goodbye to the "distortion" and "chipping" of the groove. Factory-quality assurance with a smooth corner rounding.
- Gutters and U-shaped gutters
Supporting the front line of disaster prevention. High rigidity gate wells that resist water pressure and aging deterioration.
- Gutters and U-shaped gutters
The strength of concrete and the lightness of steel. A hybrid choice that "optimizes" the site.
- Gutters and U-shaped gutters
Trust in factory products in harsh underground environments. High-precision precast supporting long-term infrastructure.
- Secondary paving products