Impacts of Impregnation with Fire Retardant Chemicals on the MOE in Bending of Some Woods
Öz
This
study has been performed to determine the effects of impregnation with fire
retardant chemical materials on the modulus of elasticity (MOE) in bending of
Oriental beech, European oak and Scotch pine wood materials. To achieve this
goal, test samples prepared from woods of Oriental beech, European oak and Scotch pine according to TS EN 345
regulations were impregnated with ammonium-sulfate [(NH4)2S04],
sodium acetate (NaC2H3O23H2O), aluminum
chloride (Al2C6I2H2O), borax [Na2B4O75H2O],
boric acid [H3.BO3] and, borax + boric acid (w:w=%50:50). The modulus of elasticity in
bending of impregnated wood samples were
determined according to TS EN 408. Consequently,
according to wood species; modulus of elasticity in bending was found the highest value at beech (10350
N/mm2) and the lowest value at pine wood (9501 N/mm2).
According to variety of impregnation; modulus of elasticity in bending values were found no
statistical difference between control samples and impregnated test samples.
Considering the interaction of wood type and process; modulus of elasticity in
bending was found the highest value at beech +
borax (11450 N/mm2) and the lowest value at pine + control samples
(8223 N/mm2). As a result, in the
massive construction and furniture elements that the modulus of
elasticity in bending after the impregnation
with borax is of great concern, Oriental beech wood materials could be
recommended.
Anahtar Kelimeler
Kaynakça
- 1. Winandy J.E. and Richards M.J., “Evaluation of boron-nitrogen phosphate free fire retardant Part I. evaluation of douglas-fir plywood according to ASTM D5516-96”, ASTM Journal of Testing and Evaluation, 31(2): 133-139, USA, (2003).
- 2. Eaton R.A. and Hale M.D.C., “Wood decay, pests and protection”, Chapman & Hall, London, England, (1993).
- 3. Evans P.D., Michell A.J. and Schmalzl K., “Studies of the degradation and protection of wood surfaces”, Wood Science Technology, 26: 151-163, (1992).
- 4. Kollman F., “Die eigenschaftanderung von gruben holz nach schutzsalzimprag-nierung, forschungsber”, Des LandesNordhrhein, Westfalen, Germany, (1959).
- 5. StabnikovV.M., “PutiUviliczenia Sroka Sluschby Dreviesinyw Konstrukcjach ”Leningrad, (1957).
- 6. Gillwald W., “Der einfluss verschiedener impragnier mittel auf die physikallischen und festigkeitseigen schaften desholzes”, Holtechnologie, 2: 4-16, (1961).
- 7. Vologdin A.J., “Vlijanije rozlicznych antiseptic of na fizyko mechanitchiestkije svosjstva dreviesiny sosny svotsva dreviesin, jejo zaschita”, Novyje Dreviesinyje Materialy, (1966).
- 8. Isaacs C.P., “The Effect of two accelerated treating methods on wood strength”, AWPA, 68: 175-182, (1972).
Ayrıntılar
Birincil Dil
Türkçe
Konular
-
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
15 Eylül 2017
Gönderilme Tarihi
22 Eylül 2017
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 2017 Cilt: 20 Sayı: 3