RESISTANCE OF SOME IRANIAN HARDWOODS AGAINST MARINE BORERS IN MAHSHAHR (PERSIAN GULF), BANDAR TORKMAN AND NOSHAHR (CASPIAN SEA) COASTS

Abstract

7 hard wood species including: Beech (Fagus orientalis), Oak (Quercus castaneafolia), Hornbeam (Carpinus betulus), Alder (Alnus subcordata), Oriental plane (Platanus orientalis), Eucalyptus camaldulensis and Babul (Acacia arabica) were treated with Creosote and Celcure. The dimensions of samples were 20 x 7.5 x 2 cm. Both preservative treated and untreated samples were placed in seawater in Mahshahr (Persian Gulf), Bandar Torkman and Noshahr (Caspian Sea) coasts according to IRGIWP-4432 (1985). In Mahshahr after 8, 17, 23, 28, 35 and 49 months, in Bandar Torkman after 8, 14, 22, 29, and 39 months and in Noshahr after 8, 18, 25, 31 and 40 months, the samples were inspected according with recommendation of IRG/WP-4432 (1985) and ASTM D-2481. All the control samples (untreated wood) of Beech, Oak, Hornbeam and Alder over 22 months, Oriental plane over 25 months and Babul over 20 months, were seriously attacked. Untreated Eucalyptus and all the treated samples with celcure and creosote were sound. All the treated and untreated samples in Caspian Sea were sound. It is concluded that there is no marine borers in south coasts of Caspian Sea.

Keywords

• MARINE BORERS
• WOOD
• Treatment
• CREOSOTE
• CELCURE
• DURABILITY