INVESTIGATION OF CHEMICAL PRESERVATIVES AND NATURALLY RESISTANT WOODS FOR LONG-TERM MARINE BORER PROTECTION

SIX CHEMICAL WOOD PRESERVATIVES WERE SELECTED FOR EVALUATION OVER LONG PERIODS OF EXPOSURE IN EXTREMELY BORER- ACTIVE MARINE ENVIRONMENTS IN THE PANAMA CANAL ZONE. SOUTHERN YELLOW PINE AND DOUGLAS FIR WERE FULL-CELL PRESSURE-TREATED WITH THESE CHEMICALS AND EXPOSED IN TROPICAL SEAS AND TROPICAL BRACKISH WATER FOR PERIODS UP TO 90 MONTHS. ONE HUNDRED AND THIRTEEN UNTREATED TROPICAL WOOD SPECIES WERE CONCURRENTLY EXPOSED IN THESE SAME WATERS. THE LONG-TERM RESULTS SHOW THAT HEAVY TREATMENTS OF WHOLE CREOSOTE AND CHROMATED COOPER ARSENATE (CCA, TYPE A) ARE VERY EFFECTIVE PRESERVATIVES FOR SOUTHERN PINE EXPOSED IN SEAWATER, WHILE THE CCA WAS THE SINGULARLY MOST EFFECTIVE TREATMENT AGAINST THE BRACKISH-WATER PSILOTEREDO. /DOT/

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  • Corporate Authors:

    American Society of Naval Engineers

    Suite 507, 1012 14th Street, NW
    Washington, DC  United States  20005
  • Authors:
    • Southwell, C R
    • Bultman, J D
  • Publication Date: 1972-10

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Filing Info

  • Accession Number: 00205236
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 15 2003 12:00AM