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The role of titanium in harbor construction |
Titanium has a layer of oxide film with a thickness of not more than 10nm on the surface. It is very stable in the corrosive environment and has excellent corrosion resistance to air, sea water and Marine environment. It is the raw material that can adapt to various Marine environments most at present. Japan vigorously develops the ocean, such as the bridge from Benzhou to Shikoku, the road across Tokyo Bay, kansai Airport, floating oil storage base and so on. The exposure tests carried out by the Construction Ministry and the Steel Club on the ocean surface of Okigawa and various anti-corrosion exposure tests carried out by the Ministry of Transport and the Steel Pipe Pile Association on the floating sand trestlework in Pozaki have also shown that titanium is the most suitable material. In addition to its excellent anti-corrosion properties, titanium also has the advantages of few dissolved ions in seawater environment, non-toxicity, and no need to worry about environmental pollution. Japan also built a very large floating Marine structure, using titanium steel composite where the seawater scoured; In the construction of the cross-road in Tokyo Bay, titanium was used as the anti-splash trunk of the pier, and the titanium amount of each pier was 0.9t.Large floating Marine structures already in use or planned include airports, harbour logistics bases, sports facilities and so on.
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