Changes in some important mechanical and physical properties of untreated and treated mining timber after exposure to the conditions of a colliery

abies abies bornmuelleriana bois de feuillus bois de mine borate borates boratos carie du bois chemicophysical properties chrome chromium cobre conservantes de la madera copper cromo cuivre fagus orientalis hardwood madera de frondosas madera de mina mechanical properties mine timber pinus sylvestris softwood turkey turquia turquie wood decay wood preservation wood preservatives