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Maximum Tensile Stress of Eucalyptus Sections Finger Jointed with PVA Adhesive

Author Affiliations

  • 1Forest Products Division, Forest Research Institute, New Forest P.O., Dehradun 248006, Uttarakhand, India
  • 2Forest Products Division, Forest Research Institute, New Forest P.O., Dehradun 248006, Uttarakhand, India
  • 3Forest Products Division, Forest Research Institute, New Forest P.O., Dehradun 248006, Uttarakhand, India

Res. J. Agriculture & Forestry Sci., Volume 4, Issue (8), Pages 10-13, August,8 (2016)

Abstract

An experiment was conducted to assess the tensile strength of finger jointed sections of Eucalyptus wood. A finger profile of 21 mm length, 7 mm pitch and 1.4 mm tip thickness was used in the study. The sections were joined using PVA adhesive. For comparison, joint-free sections also were tested. The results showed that the joints resulted in poor tensile strength. The jointed samples gave only 23.57% efficiency of maximum tensile stress compared to 99.7 N/mm2 shown by clear wood sections. The study illustrates the necessity of adopting suitable strong adhesives when making finger jointed sections out of eucalyptus species.

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