THE EFFECTS OF SEASONAL CHANGES ON THE COMBUSTION DURATION OF THE CEDAR (Cedrus libani A. Rich.) AND ORIENTAL SPRUCE (Picea Orientalis Lipsky) WOOD SAMPLES

Öz

In this study, the effects of the wood’s combustion properties on the combustion duration are investigated towards the protection of the wood samples from the effects of outdoor by using various impregnation and high-level processes. For that purpose, in accordance with the given principles on the standard of combustion test ASTM–E 160-50 test samples from cedar (Cedrus libani A.Rich.) and spruce (Picea orientalis L.) are impregnated with tanalith-E and wolmanit-CB impregnation materials then water based and synthetic outdoor varnishes are applied as a high level process, afterwards seasonal effects on outdoor conditions are analysed. According to the obtained findings, first failure time for spruce wood samples the peak is 457 seconds in winter and the minimum is 257 seconds in fall, for cedar wood samples the top time is 479 seconds and the minimum time is 326 seconds in winter samples. In all combustion durations, top time at spruce wood samples is 2105 seconds at control examples and minimum time is 1143 seconds in summer samples. For cedar wood samples the top time confirmed is 2707 seconds in fall samples and minimum time is 1338 seconds in summer examples.

Anahtar Kelimeler

• Cedar Wood,Spruce Wood,Impregnate,Varnish,Combustion Duration

MEVSİMSEL DEĞİŞİMLERİN SEDİR (Cedrus libani A. Rich.) VE DOĞU LADİN (Picea Orientalis Lipsky) ODUN ÖRNEKLERİNİN YANMA DENEYİNDE YANMA SÜRELERİNE ETKİSİ

Öz

Bu çalışmada, odun örneklerinin dış ortamda etkilerinden korunmasına yönelik çeşitli emprenye ve üst yüzey işlemleri uygulanarak odunun yanma özelliklerinden yanma süreleri üzerindeki etkileri araştırılmıştır. Bu amaçla, ASTM–E 160-50 yanma testi standartlarında verilen esaslara göre sedir (Cedrus libani A.Rich.) ve ladin (Picea orientalis L.) odunundan hazırlanan deney örnekleri ASTM–D 1413–76 esaslarına göre tanalith-E ve wolmanit-CB emprenye maddeleri ile emprenye edilip ASTM-D 3023 esaslarına göre üst yüzey işlemi olarak sentetik ve su bazlı dış mekan vernikleri uygulandıktan sonra açık hava şartlarında mevsimsel etkileri incelenmiştir. Elde edilen sonuçlara göre, ilk yıkılma süresi; Ladin odunu örnekleri için en yüksek kış örneklerinde 457 sn ve en düşük ise sonbahar örneklerinde 257 sn, Sedir odunu örnekleri için en yüksek kontrol örneklerinde 479 sn, en düşük ise kış örneklerinde 326 sn’dir. Tüm yanma süresinde ise; Ladin odunu örnekleri için en yüksek kontrol örneklerinde 2105 sn ve en düşük ise yaz mevsimi örneklerinde 1143 sn, Sedir odunu örnekleri için en yüksek sonbahar örneklerinde 2707 sn, en düşük ise yaz mevsimi örneklerinde 1338 sn olarak tespit edilmiştir.

Anahtar Kelimeler

• Sedir Odunu,Ladin Odunu,Emprenye,Vernik,Mevsimsel Değişim,Yanma Süresi

Kaynakça

1. Hon D. ve Shiraishi N., " Photochemistry of Wood ", Wood and Cellulosic Chemistry, ed. Markel Dekker, New York, pp. 525-555, 2001.
2. Berkel, A., “Wood Technology, Wood Material Protection and impregnation technique”, Istanbul University Faculty of Forestry Publication No: 183, Sermet Publications, Istanbul, Vol 2, 334, 1972.
3. Örs, Y., Sönmez, A., Uysal, B., " Wood Material Affecting Resistance Combustion Wood Preservatives ", Tr. J. of Agriculture and Forestry, 23, Vol 2, 389– 394, 1999.
4. Aslan, S., Özkaya, K., “Investigation of The Combustion Resistance of Wood Based Panels Impregnated With Different Chemicals”, Suleyman Demirel University Faculty of Forestry Journal, Vol 2, 122-140. 2004.
5. Perçin, O., Sofuoglu, S., D., Uzun, O., “Effects of Boron Impregnation and Heat Treatment on Some Mechanical Properties of Oak (Quercus petraea Liebl.) Wood”, BioResources, 10(3), 3963-3978, 2015.
6. ATAR, M., ÇINAR, H., “Impacts of Impregnation with Boron Compounds and Varnishing on Combustıon Properties of Oriental Spruce (Pıcea Orıentalıs Lıpsky)” The XXVII. International Conference Research for Furniture Industry, Ankara, 17-18 September 2015.
7. Atar, M., Yalınkılıç, A., C., Aksoy, E., “Lighter Process Combustion Properties of Wood Material Effects”, TUBITAK, Project No: 109O043, 2010.
8. TS. 2476., “Sampling Methods for Physical and Mechanical Tests in wood and Features”, TSE, Ankara, 1976.

9. ASTM-E 160-50, “Standart Test Method for Combustible Properties of Terated Wood by the Crib Test”, ASTM Standards, USA, 1975.
10. ASTM-D 1413-76,” Standard Test Methods of Testing Wood Preservatives by Laboratory Soilblock Cultures,” Annual Book of Astm Standarts, USA, 452-460, 1976.
11. TS 5724, “Wood Protection - The Water-Soluble Impregnating Agents and Impregnated Wood, Boron, Copper, Chromium and Arsenic Amount of Determination - Volumetric Method”, TS standards, Ankara, 1988.
12. ASTM D 3023, “Practica for Determination of Resistance of Factory Applied Coatings of Wood Products of Stain and Reagents”, ASTM Standards, USA, 1988.
13. ASTM G7-05,” Standard Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials”, ASTM Standards, USA, 2-10, 2005.
14. ASTM-E 160–50, “Standard Test Method for Combustible Properties of Terated Wood by the Crib Test”, ASTM Standards, USA, 1975.
15. SAS, “SAS Institute, Inc. SAS/STAT User’s Guide: Version 6.0 Ed.”, SAS Institute Inc., Cary, NC, 1989.