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Annual Report 2003 2004

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60<br />

Zinc helps reinforced<br />

concrete last longer.<br />

New Transrapid<br />

We are currently in the process of adapting the Transrapid vehicle to the specific requirements of airport<br />

links. A new three-section vehicle currently being developed and built will offer high comfort and low-cost<br />

operation and meet the high demands of public transit systems.<br />

Protection against corrosion<br />

The development engineers in the Services segment have come up with a new idea to protect reinforced<br />

concrete buildings from corrosion by utilizing the protective effect of zinc sprayed onto the outside of the<br />

concrete. This zinc coating is connected with the reinforcements inside the concrete by stainless steel<br />

pins. As a result, corrosion no longer attacks the steel inside the concrete but the zinc coating outside<br />

which acts as a sacrificial anode. The method has already been used to refurbish a concrete facade in<br />

Frankfurt. Depending on concrete structure, climate and coating thickness, buildings can be protected<br />

for over 20 years.

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