HONEYCOMBING AND DEFORMATION OF SIX WOOD SPECIES AND THEIR RELATIONSHIP WITH SEVERAL PHYSICAL

Karnita Yuniarti, Efrida Basri, Abdurachman Abdurachman

Abstract


It is presumed that the wood susceptibility to drying defects is related to several physical properties. This paper examines the drying defects: honeycombing and deformation of six wood species (trema, fast growing teak, bayur, jabon, angsana and lamtoro) during high temperature drying and analyses their relationship with initial moisture content, T/R shrinkage ratio and density. Terazawa method was used to examine the defect during high temperature drying. Result shows that after high temperature drying, lamtoro suffers the worst honeycombing (level 4-6), and fast growing teak deforms severely (level 4-6). Regression analysis shows multiple regression models using all physical properties as predictors provides better estimation on deformation and honeycombing than single-predictor regression models. The multiple regression model for each defect could explain 57.52% and 39.46% of variation in deformation and honeycombing, respectively.


Keywords


Honeycombing; deformation; high temperature drying; defect; predictor

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References


ASTM. (2011). ASTM Annual Book of Standards - Standard D143-09 Standard test methods for small clear specimens of timber. West Conshohocken: ASTM International.

Basri, E. ( 2011). The Quality of Waru Gunung (Hibiscus macrophyllus Roxb.) Wood at Three Age Group and its Densification for Furniture Material. (Master Thesis), Gadjah Mada University, Yogyakarta.

Basri, E., Saefudin, Rulliyati, S., & Yuniarti, K. (2009). Drying conditions for 11 potential ramin substitutes. Journal of Tropical Forest Science, 21(4), 328-335.

Basri, E., & Wahyudi, I. (2013). Basic properties of Perhutani Plus Teak from different ages and its relationship with drying property and quality. Forest Products Research Journal, 31 (2), 93-102.

Basri, E., Yuniarti, K., Wahyudi, I., Saefudin, & Damayanti, R. (2015). Effects of girdling on wood properties and drying characteristics of Acacia mangium. Journal of Tropical Forest Science, 27(4), 498-505.

Draper, N. R., & Smith, H. (1966). Selecting The Best Regression Equation. In: Applied Regression Analysis (pp. 163-216). New York: John Wiley & Sins, Inc.

Glass, S. V., & Zellinka, S. L. (2010). Moisture Relations and Physical Properties of Wood Forest Products Society’s Wood Handbook: Wood as an Engineering Material. Wisconsin, USA: Forest Products Society.

Martawijaya, A., Kartasujana, I., Kadir, K., & Prawira, S. A. (2005). Indonesian Wood Atlas (Atlas Kayu Indonesia) (3rd ed.). Bogor, Indonesia: Pusat Penelitian dan Pengembangan Hasil Hutan.

Ofori, J., & Brentuo, B. (2005). Green moisture content, basic density, shrinkage and drying characteristics of the wood of Cedrela odorata grown in Ghana. .Journal of Tropical Forest Science, 17, 211 – 223.

Ozarska, B. (2011). Suitability of young inferior quality plantation timbers for furniture. Paper presented at the The 3rd International Symposium of IWORS, Yogyakarta, 3-4 November.

Shahverdi, M., Dashti, H., & Hossein, M. H. (2011). Establishing a kiln drying schedule for poplar (P. Alba) lumber of 7 cm Thickness. BioResources, 7(1), 26-37.

Simpson, W. T. (1991). Dry Kiln Operator's Manual. Madison, Wisconsin: United States Department of Agriculture, Forest Service, Forest Products Laboratory.

Simpson, W. T., & Verrill, S. P. (1997). Estimating kiln schedules for , tropical and temperate hardwoods using specific gravity. Forest Products Journal, 47(7-8), 64-68.

Yang, D. Q., & Normand, D. (2012). Best Practices to Avoid Hardwood Checking. Part I : Hardwood Checking-the Causes and Prevention. Quebéc, Canada: FP Innovations.

Yuniarti, K. (2015). Intermittent Drying of Eucalyptus saligna. (PhD Dissertation), The University of Melbourne, Melbourne.




DOI: https://doi.org/10.20886/jphh.2017.35.2.115-122

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