Laboratory Test Concerning the Durability of Wood in Contact With Soil

The paper presents the experimental research concerning the durability of wood by laboratory tests in contact with soil according to a method adapted to standard SR EN 807:2003. The tested wood species were: fir (Abies alba Mill.), spruce (Picea abies), Scots pine (Pinus sylvestris L.), larch (Larix decidua Mill.), oak (Quercus robur L.), beech (Fagus sylvatica L.), black locust (Robinia Pseudacacia) and eucalypt (Eucaliptus globulus L.). For experiments untreated and treated samples by impregnation with Romalit N were used. A series of preliminary macroscopic and microscopic results are presented. The results highlight the different biological colonisation of investigated samples proving the durability differences according to wood species and treatment. The test is running, the final evaluation being done in the following period.