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DOI: http://dx.doi.org/10.17099/jffiu.80051
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http://dergipark.ulakbim.gov.tr/jffiu/article/view/5000078044
Received: 18 November 2014 - Revised: 01 December 2014 - Accepted: 14 December 2014
To cite this article: Sadiku, N.A., 2015. Utilizing wood wastes as reinforcement in wood cement composite bricks. Journal of the Faculty of Forestry Istanbul University 65(2): 31-37. DOI: 10.17099/jffiu.80051
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Abstract
Utilizing wood wastes as reinforcement in wood cement composite bricks
Abstract: This paper presents the research work undertaken to study the properties of Wood Cement Composite Bricks (WCCB) from different wood wastes and cement / wood content. The WCBBs with nominal density of 1200 kg m-3 were produced from three tropical wood species and at varying cement and wood content of 2:1, 2.5:1 and 3:1 on a weight to weight basis. The properties evaluated were compressive strength, Ultra Pulse Velocity (UPV), water absorption (WA) and thickness swelling (TS). The Compressive strength values ranged from 0.25 to 1.13 N mm-2 and UPV values ranged from 18753 to 49992 m s-1. The mean values of WA after 672 hours (28 days) of water soaking of the WCCBs ranged from 9.50% to 47.13% where there were no noticeable change in the TS of the bricks. The observed density (OD) ranged from 627 to 1159 kg m-3. A. zygia from the three wood/cement content were more dimensionally stable and better in compressive strength than the other two species where T. scleroxylon had the best performance in terms of UPV. All the properties improved with increasing cement content. WCCBs at 3.0:1 cement/wood content are suitable for structural application such as panelling, ceiling and partitioning
Keywords: Tropical wood species, portland cement, composite bricks, UPV
Ahşap çimento kompozit tuğlalarında güçlendirici olarak ahşap atıklarının kullanılması
Özet: Bu çalışma, farklı ahşap atıklarından ve çimento / ahşap içeriğinden elde edilen Ahşap Çimento Kompozit Tuğlaların (WCCB) özelliklerini incelemek üzere gerçekleştirilen araştırmayı temsil etmektedir. Üç tropik ağaç türünden ve ağırlık bazında 2:1, 2,5:1 ve 3:1 olmak üzere değişen çimento ve ahşap içeriğiyle 1200 kg m-3 nominal yoğunluğa sahip WCCB’ler üretilmiştir. Basınç dayanımı, ultra atım hızı (UPV), su emilimi (WA) ve kalınlık şişmesi (TS) özellikleri değerlendirilmiştir. Basınç dayanımı değerleri 0,25 ila 1,13 N mm-2 arasında değişiklik gösterirken, UPV değerleri ise 18.753 ila 49.992 m s-1 arasında değişmiştir. WCCB’lerin 672 saat (28 gün) suya batırılmasının ardından elde edilen ortalama WA değerleri %9,50 ile %47,13 arasında değişiklik gösterirken, tuğlaların TS’sinde fark edilir bir değişiklik olmamıştır. Gözlemlenen yoğunluk (OD) 627 ila 1.159 kg m-3 arasında değişiklik göstermiştir. UPV açısından T. Scleroxylon’un en iyi performansı göstermiş olduğu diğer iki türe oranla, basınç dayanımı açısından üç adet ahşap/çimento içeriğinden elde edilen A. zygia ölçüsel olarak dengeli ve daha iyi olmuştur. Tüm özellikler, arttırılan çimento içeriği ile iyileştirilmiştir. 3,0:1 çimento / ahşap içeriğine sahip WCCB’ler panel, tavan ve bölümlere ayırma gibi yapısal uygulamalara uygundur.
Anahtar kelimeler: Tropik ağaç türleri, portland çimentosu, kompozit tuğlalar, UPV
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