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Mechanical performance of natural fiber-reinforced composites for the strengthening of masonry

2015-03-01

Codispoti, R.; Oliveira, Daniel V.; Olivito, R.; Lourenço, Paulo B.; Fangueiro, Raúl

Fibre/matrix bond; Mechanical properties; Mechanical testing; Natural fibers

The growing concerns regarding the environmental impact generated by the use of inorganic materials indifferent fields of application increased the interest towards products based on materials with lowenvironmental impact. In recent years, researchers have turned their attention towards the developmentof materials obtained from renewable sources, easily recoverable or biodegradable at the end of use. Inthe field of civil structures, a few attempts have been done to replace the most common composites (e.g.carbon and glass fibers) by materials less harmful to the environment, as natural fibers.This work presents a comprehensive experimental research on the mechanical performance of naturalfibers for the strengthening of masonry constructions. Flax, hemp, jute, sisal and coir fibers have beeninvestigated both from physical and mechanical points of view. The fibers with better performance weretested together with three different matrices (two of organic nature) in order to produce composites.These experimental results represent a useful database for understanding the potentialities of naturalfibers as strengthening systems.

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