well as protective systems, including coatings and cathodic protection of 

 metals, are included so that an evaluation of the long-term use of metals in 

 the coastal zone can he considered in the material selection process. Problems 

 associated with the use of different materials are discussed when considering 

 their physical properties which may impact upon and establish a limited use 

 for the material. 



Section XII briefly discusses the significant uses of each material as 

 well as some of the investigations and research that may improve the use of 

 these materials in the coastal zone. The specific material section and the 

 summary section will provide the coastal engineer with the fundamental 

 physical properties information with which he must be concerned. Specific 

 problems brought about by unusual or non-reoccurring local conditions may 

 require further investigation or research to ascertain the potential per- 

 formance of a given material in such a specific environment. 



This publication is intended to assist the coastal engineer in the selec- 

 tion of appropriate materials for use in the coastal zone. While information 

 is included on the placement of materials, their repair, and the treatment of 

 materials to improve durability, this information should be considered as a 

 guide and not definitive instructions for field use of the material. Pro- 

 fessional personnel experienced in areas such as wood treatment, protective 

 systems and cathodic protection should be consulted for implementation of 

 design parameters presented in this manual. 



14 



