PROTECTIVE SURFACES OR LINERS FOR SUBAQUEOUS STRUCTURES

In the patent a concrete slab or a tubular concrete pipe is provided with a wall surface or liner to protect the concrete member from marine-fouling organisms. The surface or liner incorporates an expanded shale aggregate, which has been impregnated with chemicals toxic to marine organisms. The toxic material will leach out very slowly over a long period to provide the desired protection. Such protective surfaces or liners are readily removable and can easily be replaced when the toxic chemicals are completely leached out.

• Supplemental Notes:
  • NTIS #AD-D-000128/9ST. Government-owned invention available for licensing. Copy of patent available Commissioner of Patents, Washington, D.C. 20231 $0.50.
• Corporate Authors:

  Department of the Navy

  The Pentagon
  Washington, DC  United States  20350
• Authors:
  • Muraoka, J S
• Publication Date: 0

Media Info

• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Antifouling coatings; Patents; Pesticides; Protective coatings; Reinforced concrete; Seawater; Tunneling; Underwater construction; Underwater structures
• Uncontrolled Terms: Biocides
• Old TRIS Terms: Submarine tunneling
• Subject Areas: Bridges and other structures; Railroads;

Filing Info

• Accession Number: 00090813
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: PAT-APPL-217 501 Patent
• Files: TRIS
• Created Date: Jun 26 1975 12:00AM