DECAY AND TERMITE CONTROL INVESTIGATION--FINAL INSPECTION OF SPECIMENS AFTER 180 MONTHS EXPOSURE--RESULTS OF LONG-RANGE TESTS ON WOOD PRESERVATION

In an effort to determine the long-range effects of termite attack and decay on wood as well as to evaluate the protective effects of various commercial preservaties (of various retentions) towards the reduction of termite attack and decay, a 15 year investigation was conducted wherein the changes were observed and recorded annually of nearly 2000 test specimens which reflected all the significant test variables of species of wood, and type and retention of preservative. Details are given of the location and installation of the test site which was a rectangular plot of about 1.5 acres but expandable for eventual later tests. The three species of wood selected for the test specimens were (red, oak, coast type, Douglas Fir, and southern yellow pine) the most frequently used by the railroad industry. The grading, the field inspection and analysis of the field inspection data are detailed. The results of inspection are set forth and discussed. It was found that decay occurred to a greater extent and generally progressed faster than termite damage. Coal tar creosote and the solution of creosote with coal tar or petroleum are the most effective preservatives. The protection was found to increase with the retention of the preservative in the specimens. Untreated oak is somewhat more resistant to decay and atttack than fir or pine, but only for a short time. The studies show that the life span of wood, when exposed to decay and termite attack environments, can be increased considerably by the application of the proper type and amount of preservative.

  • Corporate Authors:

    American Railway Engineering Association

    59 East Van Buren Street
    Chicago, IL  United States  60605
  • Authors:
    • Somogy, C
  • Publication Date: 1974-9

Media Info

  • Features: Appendices; Figures; Tables;
  • Pagination: p. 1-53
  • Serial:
    • AREA BULLETIN
    • Volume: 76
    • Issue Number: 649
    • Publisher: American Railway Engineering Association

Subject/Index Terms

Filing Info

  • Accession Number: 00080923
  • Record Type: Publication
  • Report/Paper Numbers: Bulletin 649 Proceeding
  • Files: TRIS
  • Created Date: Mar 26 1975 12:00AM