In New York Harbor, the Goethals and Outerbridge Crossing Piers are protected against mechanical damage by large interlocking steel cells 44-60 feet in diameter. They are filled with sand and capped with concrete. The steel cells were originally protected against corrosion by a coal tar epoxy coating. Later, the tidal zone was protected against corrosion by an underwater epoxy coating system. Both systems deteriorated and the steel began suffering from localized corrosion.

The conventional method of blasting the surface and coating it with an appropriate coating system is environmentally unsafe and relatively costly.

This paper will introduce a novel idea to protect the steel without surface preparation. The basic concept has been utilized successfully for the protection of pipe type piles.

The new idea received formal approval by two State Environmental Authorities as well as the Coast Guard.

Subject
Electric current, Steel structures, Protection practices, Materials, Substrates, Welding, Calipers, Structures, Rods, Installation, Steel, Piles, Corrosion protection
Keywords:
friction welding, sealing strips, inner sandwich, outer wrap, tensioning, hoop forces, hog rings
© 1995 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1995
Association for Materials Protection and Performance (AMPP)
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