Abstract
This paper discusses the behaviour of the granular soil reinforced with the random inclusion of the short and superficially treated curaua fibers with asphalt. These fibers are extracted from the leaves of Ananas erectifolius plants, which are a natural occurring bromeliacea from Amazon region, Brazil. The curaua treated fibers were mixed in the granular soil in order to evaluation their influence on the mechanical properties improvements of the soil. In order to characterize the performance of these fibers, scanning electron microscopy (SEM) and dynamic mechanical analysis (DMA) were employed. Also a series laboratory triaxial compression tests were performed to determine the static stress–strain response of the composites. Through the obtained results, it was observed that the addition of vegetal fibers randomly distributed presented significant improvements on the mechanical properties of this soil. The results show the potential of the curaua fibers used as soil reinforcement.
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