FOAMING OF PLASTIC ON RUNNING WATER FOR MAINTAINING BUOYANCY OF FLOATING FACILITIES.
Abstract
The report describes experience gained from procedures involved in salvaging a floating dock by filling its deteriorated component pontoons with foamed-inplace polyurethane. In some cases, the plastic was placed on top of water running across the bottom of the pontoon. Polyurethane is usually foamed-in-place upon or in clean dry surfaces or volumes in order to develop the full strength, adhesion, sealing qualities, and closedcell characteristics required to realize the maximum buoyant capability of the material. While the methods reported are not capable of providing 95 to 100 percent buoyancy maintenance, effective buoyancy retention greater than 80 percent may be expected under ordinary conditions at a cost appreciably less than half of that required for full buoyancy maintenance. Suggestions for more refined and efficient methods of utilizing the basic theories are included. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 02, 1965
- Accession Number
- AD0616286
Entities
People
- Charles F. Gerber
Organizations
- Navy Underwater Sound Laboratory