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Creep behavior of epoxy-based adhesive reinforced with nanoparticles for bonded-in timber connection


Reference:

Ahmad, Z., Ansell, M. P., Smedley, D. and Tahir, P. M., 2012. Creep behavior of epoxy-based adhesive reinforced with nanoparticles for bonded-in timber connection. Journal of Materials in Civil Engineering, 24 (7), pp. 825-831.

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Official URL:

http://dx.doi.org/10.1061/(ASCE)MT.1943-5533.0000453

Abstract

The mechanical properties of adhesive materials change over time, especially when they are subjected to long-term loadings. 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. 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 behavior of thixotropic and room temperature cure epoxy-based adhesives reinforced with nano particles were investigated. The adhesives in this investigation are formulated with the target of application for in situ bonding of pultruded rod into timber for the repair and strengthening of timber structures. In this study, two epoxy-based adhesives with added nano particles (silica fume and rubber) were subjected to bending creep tests in accelerated environments. Experimental data showed that the adhesives reinforced with nano rubber particles exhibited less creep deformation than the unreinforced ones.

Details

Item Type Articles
CreatorsAhmad, Z., Ansell, M. P., Smedley, D. and Tahir, P. M.
DOI10.1061/(ASCE)MT.1943-5533.0000453
DepartmentsFaculty of Engineering & Design > Mechanical Engineering
Research CentresBRE Centre in Innovative Construction Materials
Materials Research Centre
RefereedYes
StatusPublished
ID Code31778

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