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Modelling of stress-strain behaviour of sisal fibre reinforced concrete using damage theory



Author(s): P.R.L. Lima, R.D.T. Filho, J.M. Filho
Paper category: Conference
Book title: 8th RILEM International Symposium on Fiber Reinforced Concrete: challenges and opportunities (BEFIB 2012)
Editor(s): Joaquim A.O. Barros
Print ISBN: 978-2-35158-132-2
e-ISBN: 978-2-35158-133-9
Publisher: RILEM Publications SARL
Pages: 969 - 980
Total Pages: 11
Language: English


Abstract: 
To design building elements using sisal fibre reinforced composite, the stress-strain curve of the material in compression is needed to evaluate the deformations and the toughness of the material for consideration of ductility. In this work a new constitutive law for sisal-fibre cement composite is defined starting from the damage theory originally developed by Mazars to simulate the behaviour of ordinary damage concrete. For the validation of the theory, short sisal fibre reinforced cement based composites were developed and their stress-strain behaviour was characterized in the present study. One self-compacting mortar suitable for use with short fibres was used with reinforcement of 0 to 6% of fibre with fibre length of 25 and 50 mm. The results indicate that all variables studied affect the compressive behaviour of sisal fibre reinforced cement composites. The proposed model and equations applied to the experimental results showed a very good agreement.


Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00


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