Unclassified 



SECURITY CLASSIFICATION OF THIS PAGEfXTion D»(a Entered) 



20. Continued 



can provide this optimization. As a part of the development of guidelines, this report 

 describes an evaluation of the AUTEC acoustic array emplaced in 1962 and retrieved from 

 the Tongue-of-the-Ocean, Bahama Islands, after 12 years of exposure. The condition of 

 the array as well as the application and revision of the inspection guidelines are discussed. 



Library Card 



Civil Engineering Laboratory 



INSPECTION OF OBJECTS RETRIEVED FROM THE 

 DEEP OCEAN - AUTEC ACOUSTIC ARRAY, by J. F. 

 Jenkins 



TN-1424 23ppillus February 1976 Unclassified 



1. Underwater structures 2. Corrosion I. 42-016 



Information on the corrosion of materials exposed to marine environments must be 

 obtained if ocean structures are to be designed with predictable lifetimes. A large amount of 

 relevant information can be obtained at a relatively low cost by evaluating the condition of 

 objects retrieved from the sea. To optimize these evaluations, they must be performed 

 logically and uniformly. Development and application of guidelines for such evaluations 

 can provide this optimization. As a part of the development of guidelines, this report 

 describes an evaluation of the AUTEC acoustic array emplaced in 1962 and retrieved from 

 the Tongue-of-the-Ocean, Bahama Islands, after 12 years of exposure. The condition of the 

 array as well as the application and revision of the inspection guidelines are discussed. 



I I 



Unclassified 



