African Journal of Wood Science and Forestry

African Journal of Wood Science and Forestry ISSN: 2326-7285 Vol. 2 (1), pp. 098-103, January, 2014. © International Scholars Journals

Full Length Research Paper

Physical and mechanical properties of Raj Koroi (Albizia richardiana) plywood

Md. Mizanur Rahman^a, Atanu Kumar Das^b, Md. Asaduzzaman^c, Subir Kumar Biswas^d, Md. Obaidullah Hannan^e

^aCo-principal of Investigator, Carbon Project, Department of Agroforestry and Environmental Science, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207, Bangladesh. 

^bMaster’s Program, Pulp and Paper Technology, Asian Institute of Technology, 58 Moo 9, Km. 42, Paholyothin Highway Klong Luang, Pathumthani 12120, Thailand.

^c,eAssistant Profssor and Professor, Forestry and Wood Technology Discipline, Khulna University, Khulna-9208, Bangladesh.

^dLaboratory Supervisor, Pulp and Paper Technology, Asian Institute of Technology, 58 Moo 9, Km. 42, Paholyothin Highway Klong Luang, Pathumthani 12120, Thailand.

*Corresponding author’s. E-mail: [email protected]

Accepted 17 January, 2014

Abstract

This paper summarizes the results of a research aimed at assessing the uses of raj koroi (Albizia richardiana) an alternative raw material for plywood production. Five plies raj koroi plywood of 2400 mm×1200 mm×12 mm size was manufactured using urea formaldehyde adhesive. The physical and mechanical properties of the manufactured plywood were evaluated. The results of physical and mechanical properties of raj koroi plywood were compared; data was examined with the existing market available plywood manufactured by simul (Bombax ceiba). It was found that the density of rajkori plywood and simul plywood was 0.75 and 0.50 g/cm³ respectively. The MOR was 62.79 N/mm² for raj koroi plywood and it was 32.52 N/mm² for simul plywood. The MOE of raj koroi plywood was found 6997.20 N/mm² and on the other hand it was 3224.15 N/mm² for simul plywood. All physical and mechanical properties except thickness, swelling (%) after 24 hours of water soaking of raj koroi plywood were higher than that of simul plywood and which satisfies the standard.

Key words: Albizia richardiana, physical properties, mechanical properties, MOR (Modulus of Rupture), MOE (Modulus of Elasticity).