Seismic resistance and water-tightness superior rubber ring joint method.
The DCJ box culvert can achieve high seismic and water-tight performance simply by inserting the "inlet" equipped with a two-layer structure special rubber ring into the "outlet." Additionally, it excels in workability as the internal joint work can be omitted. The special rubber ring features a two-layer structure, with a soft rubber base covered by hard rubber on the outside, which provides excellent followability, compression recovery, and abrasion resistance, maintaining high water-tight performance (0.06MPa) even during extraction due to seismic motion or after bending. For more details, please contact us or refer to the catalog.
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basic information
【Main Features】 ○ High water-tight performance is ensured simply by inserting the joint part into the receiving end. ○ Internal joint work can be omitted, making it easy to install. ○ The special rubber ring has a two-layer structure with a soft rubber base covered by hard rubber on the outside. ○ Excellent followability, compression recovery, and abrasion resistance. ○ Maintains high water-tight performance (0.06MPa) even during pull-out due to seismic motion or after bending. ○ K-type flexible joint box culvert pull-out performance → Pull-out amount: 10mm; bending angle: 0.19 to 0.95 degrees. ○ T-type seismic-resistant joint box culvert pull-out performance → Pull-out amount: 50mm; bending angle: 0.95 to 4.76 degrees. ● For more details, please contact us or refer to the catalog.
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Company information
Since our founding in 1925, we have contributed to the development of Japan's land through concrete products. From Sendai in the north to Hiroshima in the south, we respond to inquiries from various regions through a wide network. We have also established a system for delivering products from our own factory and manufacturing partners across the country. We offer over 1,800 types of products, the majority of which are original. We propose many products that contribute to "national resilience" as disaster prevention and mitigation measures against typhoons, floods, water damage, and landslides. With the motto "Proposal and technical capabilities that shape the future of Japan," we strive to meet our customers' expectations.
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