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dc.contributor.authorO'Ceallaigh, Conan
dc.contributor.authorSikora, Karol
dc.contributor.authorMcPolin, Daniel
dc.contributor.authorHarte, Annette M.
dc.identifier.citationO'Ceallaigh, Conan, Sikora, Karol, McPolin, Daniel, & Harte, Annette M. (2019). The mechano-sorptive creep behaviour of basalt FRP reinforced timber elements in a variable climate. Engineering Structures, 200, 109702. doi:
dc.description.abstractThe use of Fibre Reinforced Polymer (FRP) reinforcement has been shown to improve the short-term flexural behaviour of timber elements. This is particularly important when reinforced elements are subjected to a variable climate condition, which is known to accelerate long-term or creep behaviour. In this paper, both unreinforced and Basalt FRP reinforced beams are subjected to creep tests at a common maximum compressive stress of 8 MPa over a 75-week period. Results demonstrated a significant reduction in total creep deflection due to the FRP reinforcement. Using matched groups, experimentally measured total strain behaviour is decomposed into the elastic, viscoelastic, mechano-sorptive and swelling/shrinkage strain components. Analysis has shown that the mechano-sorptive component is similar in unreinforced and reinforced beams. The reduction in creep behaviour of the reinforced members was primarily due to the restrained swelling/shrinkage response of the reinforced beams and was independent of the mechano-sorptive effect. This finding demonstrates the positive influence of FRP reinforcement on the long-term behaviour of timber elements and indicates a potential to describe the long-term deflection performance of FRP reinforced elements from short-term swelling/shrinkage tests.en_IE
dc.description.sponsorshipThis work has been carried out as part of the project ‘Innovation in Irish timber Usage’ (Project Ref. 11/C/207) funded by the Department of Agriculture, Food and the Marine of the Republic of Ireland under the FIRM/RSF/COFORD scheme. The authors would also like to thank ECC Ltd. (Earrai Coillte Chonnacht Teoranta) for supplying all the timber used in this project. The contribution of the technical staff of the College of Engineering and Informatics, NUIG, in particular, Peter Fahy, Colm Walsh and Gerard Hynes, is gratefully acknowledged.en_IE
dc.relation.ispartofEngineering Structuresen
dc.subjectBasalt fibreen_IE
dc.subjectEngineered wood productsen_IE
dc.subjectMechano-sorptive creepen_IE
dc.subjectReinforced timberen_IE
dc.subjectSitka spruceen_IE
dc.subjectSwelling and shrinkageen_IE
dc.subjectViscoelastic creepen_IE
dc.titleThe mechano-sorptive creep behaviour of basalt FRP reinforced timber elements in a variable climateen_IE
dc.contributor.funderDepartment of Agriculture, Food and the Marine, Irelanden_IE
dc.contributor.funderEarrai Coillte Chonnacht Teorantaen_IE
dc.local.contactConan O'Ceallaigh. Email:

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