The Effect of Long Term Loading on Epoxy-Based Adhesive Reinforced with Nano-Particles for In Situ Timber Bonding

Ahmad Zakiah; Martin P. Ansell; Dave Smedley; Paridah Md Tahir

doi:10.4028/www.scientific.net/AMR.545.111

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 545The Effect of Long Term Loading on Epoxy-Based...

The Effect of Long Term Loading on Epoxy-Based Adhesive Reinforced with Nano-Particles for In Situ Timber Bonding

Abstract:

The mechanical properties of adhesive materials change over time, especially when they are subjected to long-term loading regimes. The significance of this is often overlooked at the design stage. When adhesives are subjected to a constant load, they may deform continuously, depending on temperature, humidity and cross-link density. This progressive deformation is called creep and will continue until rupture or yielding causes failure. It is imperative that reliable accelerated tests be developed to determine the long-term time-dependent performance of adhesives under different environmental conditions. The long-term creep behaviors of thixotropic and room temperature cure epoxy based adhesives reinforced with nano-particles specially formulated for in-situ bonding of pultruded rod into timber for repair and strengthening of timber structures were investigated. In this study two epoxy-based adhesives with nano-particles (silica fume and rubber) addition were subjected to bending creep tests, in accelerated environments. Experimental data showed that the adhesives reinforced with nano-rubber particles showed less creep deformation than the unreinforced adhesives.

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Periodical:

Advanced Materials Research (Volume 545)

Pages:

111-118

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.545.111

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Online since:

July 2012

Authors:

Ahmad Zakiah, Martin P. Ansell, Dave Smedley, Paridah Md Tahir

Keywords:

Adhesive, Creep, Epoxy, In Situ Timber Bonding, Nanoparticle

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