The purpose of the under plate protection is to provide an effective connection/protection between the sheath of the free length and the anchorage.

Its function consists in protecting the small section of tendon under the bearing plate and to guarantee the continuity of the sheath.

A painted or grouted plastic or metal rigid sleeve is sealed or welded to the anchor head. It is sealed to the free length sheath or duct and filled with corrosion protection compound, cement or resin.