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  1. Home
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  3. Civil Engineering Materials
  4. Road, bridge and tunnel materials
  5. Bridge Materials
  6. Bridge expansion joint device "DIA Free Joint"

Bridge expansion joint device "DIA Free Joint"

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last updated:Oct 24, 2025

日本橋梁工業
日本橋梁工業
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In repairs that do not require chipping, you can prolong the lifespan of the bridge without damaging the deck and reduce maintenance costs!

The "DIA Free Joint" is a bridge expansion joint device that excels not only in safety and soundproofing during operation but also in ease of installation and maintenance, as well as cost-effectiveness. It consists of a separation structure made up of three components: a receiving base attached to the deck, a receiving plate installed on top of the receiving base, and a surface rubber with numerous diamond-shaped holes. Although these components are separate, they function together as a cohesive unit, demonstrating excellent performance. Additionally, it flexibly responds to various conditions at each site and is designed to minimize noise and debris during repair work, taking environmental considerations into account. 【Features】 ■ Protects the deck ■ Comfortable driving ■ Safe driving ■ Environmentally friendly ■ Cost reduction ■ Compatible with both pre-installation and post-installation methods *For more details, please download the PDF or feel free to contact us.

    Bridge Materials
ダイヤフリージョイント

Bridge expansion joint device "DIA Free Joint"

ダイヤフリージョイント 画像.png
ダイヤフリージョイント 画像.png
  • Special site - Product/service details - https://pr.www.ipros.com/dfj-nikkyo/product/

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【Materials】 ■ Support base (steel) to be installed on the floor slab ■ Receiving plate (steel with rubber coating) to be installed on the support base ■ Surface rubber with numerous diamond-shaped holes (rubber) *For more details, please download the PDF or feel free to contact us.

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Diah Free Joint Catalog

Diah Free Joint Catalog

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日本橋梁工業

日本橋梁工業

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The bridge expansion joint device, Dia-Free Joint, developed independently by Nihon Bridge Engineering Co., Ltd., is an ideal joint that excels in safety, durability, sound insulation, ease of construction and maintenance, and cost-effectiveness, built on over 40 years of experience and trust. We are a company that utilizes ideas and thrives on technology.

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Durability 100 years, expansion device, hybrid joint, type 3LII.
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Durability 100 years, expansion device, hybrid joint, type 3LII.
クリテック工業 本社、大阪営業所

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  • Road, bridge and tunnel materials
  • Bridge Materials
          

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