Yerli ve Yabancı Ağaç Türlerinin Külleri ile Emprenye Edilen Sarıçam Odunun Esmer Çürüklük Mantarlarından Coniophora puteana’ya Karşı Dayanımının Araştırılması

The initiatives of service life extension in usage area of the wood have been research subject by scientists for many years. For this purpose, various methods and chemical materials have been developed in wood protection industry. Generally, the chemicals used for protection wood in interior applications are not suitable for the outdoor applications. Impregnation materials which are not harmful to human health should be developed in the protection of wood interior application. In this study, Scots pine samples were impregnated under vacuum with Scots pine (Pinus sylvestris), walnut (Juglans nigra) and black locust (Robinia sp.) from native trees species, dahoma (Piptadenisatrum africanum), mahogany (Swietenia mahogany) and iroko (Chlorophora excelsa) from exotic wood species ashes. Scotch pine samples which are impregnated with ashes prepared from domestic and exotic wood were exposed Coniophora puteana from white rot fungi according to EN -113 standard for 12 weeks. Mass losses were calculated and compared with control samples after fungi test. While average of 43, 9 % mass loss occurred in Scotch pine control samples, average of 33, 1 %, 26, 5% and 19% mass losses occurred in impregnated samples with Scotch pine, walnut (Juglans nigra) and black locust (Robinia sp.) ashes, respectively. While 23, 5 % and 18, 4 % mass loss occurred in Scotch pine treated with dahoma and mahogany ash from the exotic tree species, only 3, 4% mass loss occurred in Scotch pine impregnated with Iroko ash solution. The lowest mass loss occurred in the samples impregnated with Iroko ash. It is estimated that the silica material in Iroko wood composition and known as wood protective effect showed antifungal effect. This study showed that Iroko ash might be evaluated as wood protection material in wood protection industry.