Experimental Studies on the Mechanical Property of Laminated Bamboo in Thailand

A new generation product made from bamboo strips, known as laminated bamboo, has gained importance. The objective of this research was to experiment the effect of three factors on the mechanical property of laminated bamboo. The interested factors for experimental design were (A) four bamboo species, namely Bambusa blumeana Schultes (Pai See Suk), Dendrocalamus asper Backer (Pai Tong), Dendrocalamus hamiltonii Nees (Pai Hok) and Dendrocalamus sericeus Munro (Pai Sang Mon), (B) two types of glue adhesive, polyvinyl acetate emulsion (PVAC) fortified with urea-formaldehyde (UF) and urea-formaldehyde (UF) to make parallel-oriented bamboo strips laminates and (C) glue weight per strip area, 150 g/m2 and 190 g/m2. Experimental results showed that Dendrocalamus asper Backer (Pai Tong) and Dendrocalamus sericeus Munro (Pai Sang Mon) were best used for manufacturing due to their highest MOR and MOE. The amount of glue weight 150 g/m2 yielded higher MOR and MOE than the amount of glue weight 190 g/m2. At the conclusion, the laminated bamboo manufacturers can benefit from this research in order to select right materials according to strength, cost and accessibility.




References:
[1] J. J. A. Janssen, Building with bamboo. 2nd ed. London: Intermediate
Technology Publications, 1995.
[2] D. L. Jayanetti, and P. R. Follett, Bamboo in construction: An
introduction. Buckinghamshire: TRADA Technology, 1998.
[3] T. Y. Lo, H. Z. Cui, and H. C. Leung, "The effect of fiber density on
strength capacity of bamboo," Material Letters, vol. 58, pp. 2595-2598,
2004.
[4] S. H. Li, S. Y. Fu, Q. Y. Zeng, Y. L. Xiao, and B. L. Zhou, "Biomimicry
of bamboo bast fibre with engineering composite material," Material
Science and Engineering, C 3, 125-130, 1995.
[5] V. Laemlaksakul, and S. Kaewkuekool, "Laminated bamboo materials
for furniture - A systematic approach to innovative product design,"
WSEAS Transactions on Engineering Education, vol. 3, pp. 424-430,
May 2006.
[6] S. A. Abdul-Wahab and J. Abdo, "Optimization of multistage flash
desalination process by using a two-level factorial design," Applied
Thermal Engineering, vol. 27, pp. 413-421, February 2007.
[7] T. S. Chan, R. Bhagwat, and S. Wadhwa, "Flexibility performance:
Taguchi's method study of physical system and operating control
parameters of FMS," Robotics and Computer-Integrated Manufacturing,
vol. 23, pp. 25-37, February 2007.
[8] D. C. Montgomery, Design and Analysis of Experiments. 5th ed., Wiley
& Sons, 2001.
[9] C. Eamon et al, "Reliability-based criteria for load and resistance factor
design code for wood bridges," Transportation Research Record,
no.1696, vol. 1, pp.316-322, 2000.