Corrosion handbook
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2.3 Outdoor field tests
Corrosion protection of products can be assessed most accurately by exposure
tests of specimens and products in real atmospheric environmental conditions.
For this purpose, Hilti conducts multiple ongoing outdoor field tests for
its products at various sites all over the world, in conditions ranging from
cold temperate to tropical, and from coastal to industrial and even offshore
atmospheres (see Fig.24).
Hilti has operated the site near Le Havre on the Atlantic coast in France since the
1980s. Here we not only test the corrosion behavior of our fastening products,
but also their long-term functionality. The fastening elements, especially anchors,
are set in concrete. After certain periods of time, the remaining load values are
measured in pull-out tests (see Fig. 25).
Tropical, coastal Tropical, coastal
Cold climate, coastalCold climate, coastal
Moderate climate, coastal
Industrial, steelworks
Mexico
Germany
France
China
Sweden
Austria
Fig. 24: Map showing the various field test locations for Hilti products
Fig. 25: Typical force-displacement
measurement result for an installed
anchor after 16 years of exposure in the
coastal environment.
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