PRO LIGNO versiune online ISSN 2069-7430/ PRO LIGNO 2010 Numarul 4  
     
 
 
   
 

 

 

 

 

 

 

 

TEST DE LABORATOR PRIVIND DURABILITATEA LEMNULUI IN CONTACT CU SOLUL

Emanuela BELDEAN

Sef lucr. dr. ing. - Transilvania University of Brasov, Faculty of Wood Engineering
Adresa: B-dul. Eroilor nr. 29, 500036 Brasov, Romania
Tel: 0040 268 412921/int.192. Fax: 0040 268 415315
E-mail: ebeldean@unitbv.ro

Maria Cristina TIMAR
Prof dr. ch. - Transilvania University of Brasov, Faculty of Wood Engineering
cristinatimar@unitbv.ro E-mail: lubomir.javorek@vsld.tuzvo.sk

 

Rezumat:
         Lucrarea prezinta cercetari experimentale privind durabilitatea lemnului, prin teste de laborator in contact cu solul conform unei metode adaptate dupa SR EN 807:2003. Speciile testate au fost brad (Abies alba Mill.), molid (Picea abies ), pin silvestru (Pinus sylvestris L.), larice (Larix decidua Mill.), stejar (Quercus robur L.), fag (Fagus sylvatica L.), salcam (Robinia Pseudacacia) si eucalipt (Eucaliptus globulus L.). In incercari au fost utilizate epruvete martor netratate si tratate prin impregnare cu Romalit N. Sunt prezentate o serie de rezultate preliminare macroscopice si microscopice. Rezultatele evidentiaza colonizarea biologica diferentiata a probelor investigate, demonstrand diferentele de durabilitate functie de specie si tratament. Testul este in derulare urmand sa se faca evaluarea finala in perioada urmatoare.

Cuvinte cheie: lemn, durabilitate, test de laborator, contact cu solul, microscopie

  [Full text - pdf]

Bibliografie:
BRISCHKE, C., WELZBACHER, C. R., RAPP, A. O., AUGUSTA, U., BRANDT, K.(2009) Comparative studies on the in-ground and above-ground durability of European oak heartwood (Quercus petraea Liebl.and Quercus robur L.). In: Eur. J. Wood Prod. 67, pp.329-338.
CISMARU, M (2003). Fizica lemnului si a materialelor pe baza de lemn. (Wood Physics and Mechanics). Editura Universitatii "Transilvania", Brasov.
EDLUND, M.L., NILSSON, T (1998). Testing the durability of wood. In: Materials and Structures, vol 31, pp 641-647.
MARINESCU, I. 1979. Uscarea lemnului. (Wood Drying). Editura Tehnica, Bucuresti.
RAPP, A. (2002). Experience with ENV 807 and field tests. Cost E 22 presentation, Madrid 21 st October 2002.
TREN, A., LARNOY, E: (2007). Chitosan treated wood and its effectiveness against soft rot fungi. In: The 9th IEE Symposium on Web Site Evolution WSE, October 5-6, Paris.
***EN 252:1995: Wood preservatives; Field test method for determining the relative protective effectiveness of wood preservatives in ground contact, Romanian version.
***ENV 807:2003: Wood preservatives; Determination of the effectiveness against soft rotting micro-fungi and other soil inhabiting micro-organisms, Romanian version.






 

 
Pagina creata de Costel AGACHE. Intretinere pagina Luminita Brenci. Ultima actualizare, 15 Decembrie 2010