NEXCO Specification Expansion Device "Hybrid Joint CF Type"
CF-20,30,50,80 NCF-20,30,50,80,100
A bridge joint with minimal shock during operation and low noise! Load-supporting steel expansion device.
The "CF type" is a bridge expansion device that employs a waterproof structure using elastic seals. Its tooth-shaped design minimizes shocks during travel and reduces noise. Due to factory assembly, it allows for shorter construction time, improved ease of installation, and cost reduction. It is a product that complies with the NEXCO standards revised in July 2011. There is also a snow pressure-resistant product called the "NCF type." 【Features】 - High waterproof performance due to elastic seals - Low noise for comfortable travel - Reduced construction time - Cost reduction - Compliance with NEXCO standards - Basic specifications include a secondary waterproofing material attachment type For more details, please refer to the catalog. Feel free to contact us with any inquiries.
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basic information
【Features】 ○ High water-stopping performance due to elastic seals ○ Low noise for comfortable driving ○ Reduced construction time ○ Cost savings ○ Secondary water-stopping material installation type with basic specifications ○ Complies with NEXCO standards Passed NEXCO's water-stopping tests and durability tests. A product that has proven its performance. ・ "CF type" = 30 years of durability + 30 years of water-stopping performance ・ "NCF type" = 50 years of durability + 30 years of water-stopping performance ● For more details, please refer to the catalog. Feel free to contact us with any inquiries.
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Applications/Examples of results
We have received widespread adoption nationwide, primarily from the Ministry of Land, Infrastructure, Transport and Tourism, NEXCO, urban expressways, local governments, and other public organizations.
Detailed information
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Tohoku Expressway Iwatsuki Overpass
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Keihin Area, Horikuchi Third Bridge
Line up（9）
| Model number | overview |
|---|---|
| CF-20 | Extension amount 20mm (±10mm) |
| CF-30 | Extension amount 30mm (±15mm) |
| CF-50 | Extension amount 50mm (±25mm) |
| CF-80 | Extension amount 80mm (±40mm) |
| NCF-20 | Extension amount 20mm (±10mm) |
| NCF-30 | Extension amount 30mm (±15mm) |
| NCF-50 | Extension amount 50mm (±25mm) |
| NCF-80 | Extension amount 80mm (±40mm) |
| NCF-100 | Extension amount 100mm (±50mm) |
catalog（2）
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Company information
CRETEC, a company under Crittec Industries, was born from the combination of Create (creation) and Technology. As a comprehensive manufacturer of bridge expansion devices, we continue to develop expansion devices that contribute to the longevity of bridges and environmental protection. Moreover, we do not stop at product manufacturing; by consistently handling everything from research, design, manufacturing, sales, to construction in-house, we can manufacture and install expansion devices that meet the requests of our clients and general contractors, as well as the conditions and environments of the bridges and roads on-site. We also take into account the issues that arise during the installation of expansion devices and the damage conditions of existing devices that are removed, using this information to improve and develop our products. Please feel free to contact us for inquiries about bridge expansion devices, requests for materials, or estimates. ◆ What is a bridge expansion device? It is a component installed in the gap between the bridge abutment and the bridge girder, or between bridge girders. When designing a bridge, it is necessary to create a gap to prevent the bridge girders from colliding due to expansion and contraction caused by temperature changes. The bridge expansion device is required to cover this gap and ensure safe passage for vehicles and pedestrians.