Log In    |    Join IASS    |    Online Journal    |    Proceedings    |    Directory    |    Events    |    News

Online IASS Proceedings

IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: Timber Spatial Structures

Methodology for investigating the best results at pressing the adhesive over the bamboo surface

< Table of Contents for Timber Spatial Structures
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: Timber Spatial Structures
  • Title: Methodology for investigating the best results at pressing the adhesive over the bamboo surface
  • Author(s): Mônica A. SMITS, Vinnicius D. PIZZOL, Luis E. MOREIRA, Edgar V. M. CARRASCO
  • Keywords: methodology, laminate, mechanical properties, adhesive, anisotropic
Abstract
Bamboo is an organic material which presents high strength and has played an important role not only in culture but also in the everyday lives of people. It is essential to know its properties as well as its physical and mechanical characteristics to ensure its application as structural element on engineering. Studies related to the bamboo fibres are still insufficient to be considered for advanced processing. The aim of this study is to show the best gluing pressure for the GLB (Glued Laminated Bamboo). So this study will contribute towards a better understanding of the mechanical properties of glued bamboo considering the interaction of bamboo-adhesive substrates. For this research, the shear models used as prototypes were mounted in GLB, by using the same adhesive on each experiment under different presses. Two-component thermosetting adhesive, resorcinol formaldehyde, and the bamboo species Phyllostachys pubencens were used for the tests. The shear tests were performed to evaluate the influence of pressure on the final product, related to the bonding strength. The experimental tests and the methodology applied to collect data have strictly followed the International Standard ISO 22157-1 and Eurocode. According to the tests, the average traction varies around 7.26 MPa, 14.91MPa, 15.43 MPa, 14.71, 14.27 and 15.03 MPa, with average values of pressure bonding varying from zero to 2,5MPa, 5MPa, 6,25MPa, 7,5MPa and 8,75MPa, showing that the pressure above 5MPa was unnecessary for the tested models.

Read the complete paper (pdf) (requires membership)
© IASS All rights reserved.
IASS · CEDEX - Laboratorio Central de Estructuras y Materiales · C/ Alfonso XII, 3 · 28014 Madrid, Spain     tel. 34 91 335-7409; fax: 335-7422
Site Design & Programming
by World Design Group, Inc.