Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE 



REPORT DOCUMENTATION PAGE 



Form Approved 

 0MB No Q7040r8S 

 Exp Date JunJO 1986 



la REPORT SECURITY CLASSIFICATION 

 Ilnrlasfii fieri 



lb, RESTRICTIVE MARKINGS 



2a SECURITY CLASSIFICATION AUTHORITY 



2b DECLASSIFICATION /DOWNGRADING SCHEDULE 



3 DISTRIBUTION /AVAILABILITY OF REPORT 



Approved for public release; distribution 

 unlimited. 



4. PERFORMING ORGANIZATION REPORT NUM8ER(S) 

 Technical Report REMR-CO-2 



5, MONITORING ORGANIZATION REPORT NUMBER(5) 



6a. NAME OF PERFORMING ORGANIZATION 

 USAEWES, Coastal Engineering 

 Research Center 



6b. OFFICE SYMBOL 

 (If applicable) 



7a. NAME OF MONITORING ORGANIZATION 



6c. ADDRESS (0«y, State, and ZIP Code) 



PO Box 631 



Vicksburg, MS 39181-0631 



7b. ADDRESS (Oty, State, and ZIP Code) 



8a. NAME OF FUNDING /SPONSORING 

 ORGANIZATION 



US Army Corps of Engineers 



8b. OFFICE SYMBOL 

 (If applicable) 



9 PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER 



3c. ADDRESS (Oty, State, and ZIP Code) 

 Washington, DC 20314-1000 



10. SOURCE OF FUNDING NUMBERS 



32325 



11 TITLE (Include Security Classification) 

 Prototype Experience with the Use of Dissimilar Armor for Repair and Rehabilitation of 

 Rubble-Mound Coastal Structures 



12. PERSONAL AUTHOR(S) 

 Carver, Robert D. 



13a TYPE OF REPORT 

 Final report 



13b. TIME COVERED 



FROM Feb 84 TO Sep 8 5 



14 DATE OF REPORT (Year, Month, Day) 15 PAGE COUNT 

 January 1989 44 



16. SUPPLEMENTARY NOTATION A report of the Coastal Problem Area of the Repair, Evaluation, Main- 

 tenance, and Rehabilitation (REMR) Research Program. Available from National Technical 

 Information Service, 5285 Port Royal Road, Springfield, VA 22161. 



COSATI CODES 



18 SUBJECT TERMS (Continue on reverse if necessary and identify by block number) 



Armor units 

 Breakwaters 



Jetties 

 Rubble mound 



19 ABSTRACT (Continue on reverse if necessary and identify by block number) 



A survey of existing Corps structures that have used dissimilar armor for repair and 

 rehabilitation was conducted. The survey was accomplished by search and study of project 

 index maps, reconnaissance reports, special reports, and in conjunction with other work 

 units and follow-up visits to the districts and divisions for first-hand discussions and 

 observations. Results show that in all cases selection of the dissimilar armor type and 

 weight was based on design guidance for new construction, prototype experience, engineering 

 judgment, inferences from model tests of similar structure, or site-specific model tests 

 rather than guidance specific to evaluating the interfacing and stability response of the 

 dissimilar armor. It is reasonable to conclude that the guidance needed for use of dis- 

 similar armor will become more critical in future years as rehabilitation of major break- 

 waters and jetties becomes necessary to extend their project life. 



20 DISTRIBUTION /AVAILABILITY OF ABSTRACT 

 H UNCLASSIFIED/UNLIMITED D SAME AS RPT 



D DTIC USERS 



21 ABSTRACT SECURITY CLASSIFICATION 



Unclassified 



22a NAME OF RESPONSIBLE INDIVIDUAL 



22b TELEPHONE (/nc/ude Area Code) 22c OFFICE SYMBOL 



00 FORM 1473, 84 MAR 



83 APR edition may oe used until exhausteo 

 All other eaitions ate obsolete 



SECURITY CLASSIFICATION OF THIS PAGE 



Unclassified 



