CORSPACE™

"CORSPACE™" substantially suppresses corrosion by addition of a small amount of tin. Compared to conventional steel, it has a longer span until repainting will be necessary, which will reduce the Life Cycle Cost.

Applicable standard
CORSPACE™ complies with JIS G 3101, JIS G 3106 and JIS G 3140.

Features

Issues • Corrosion from coating pinhole part and deteriorated part • Corrosion from sharp edge part of element • In a severe salt damage environment, the maintenance cost and environmental load can be reduced by extending the recoating cycle.

Exhibits effect in coastal areas with severe salt injury.

Concept of CORSPACE application to a bridge of Japan

Advantages on order receipt, designing and manufacturing

  • We can serve you with the NETIS registration technology (KK-150056-VR certified in January 2021), technical proposals and construction performance rating.
  • The standard extras are described as “Corrosion Resistance Steel for Repainting Cycle Extension” in the Kensetsu Bukka (Construction Research Institute) and Sekisan Shiryou(Economic Research Association).
  • CORSPACE is listed as a “tin added steel” that can be used in Hanshin Expressway Company Limited “Part 2 Structural Design Standards (Bridge Edition)” (January 2021) and Metropolitan Expressway Company Limited “Bridge Structure Design/Construction Procedure”(June 2015).
  • CORSPACE conforms to all the JIS standards of steel plates used for bridges, and the plate manufacturable range is equivalent to that of conventional steel.
  • Various types of workability such as cutting, bending, and welding are equivalent to that for conventional steel.
  • We are lining up exclusive weld materials and bolts.

The peel-off area of the flawed part is small; and corrosion is suppressed.

Corrosion resistance properties(assessment through an acceleration test [SAE J2334 test])

The life-cycle cost can be decreased by reducing the coat repainting to once every 100 years.

Concept of life-cycle cost reduction

Examples of use

Kesennuma Bay Crossing Bridge
Yodogawa Bridge on National Route 2
(Deck Slab Replacement)
Makiminato Elevated Bridge
(Okinawa Prefecture)
Hanshin Expressway Sambo JCT
Higashi–Harima Nanboku Road
(Mizuashi Shintsuji No. 5 Viaduct)
Unloader

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