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2025 | OriginalPaper | Buchkapitel

Mechanical Behavior of a Subgrade Soil Reinforced with Piassava Fibers

verfasst von : Antônio Carlos Rodrigues Guimarães, Sérgio Neves Monteiro, Lisley Madeira Coelho

Erschienen in: Proceedings of the 5th International Conference on Transportation Geotechnics (ICTG) 2024, Volume 7

Verlag: Springer Nature Singapore

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Abstract

This research presents a study about the influence of cement content and the piassava fibers (Attalea funifera) on the mechanical behavior of a fine-grained subgrade soil. Specimens of 10 cm in diameter and 20 cm in height were prepared from natural subgrade soil, 2wt.% of cement content, and 1,5wt.% piassava fiber from the Brazilian Amazon. Repeated load triaxial tests (RLT) with different stresses were conducted to provide permanent deformation behavior and the results were analyzed based on shakedown analysis. The aim was to verify if the addition of these fibers in a soil/cement matrix generates a significant effect on the mechanical behavior of the material regarding its permanent deformation, given the unsatisfactory geotechnical characteristics of the sedimentary soils in the Amazon region. It was found that the piassava fiber addition decreased the soil permanent deformation, although when mixed with cement, the permanent deformation was not significantly affected.

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Titel: Mechanical Behavior of a Subgrade Soil Reinforced with Piassava Fibers
verfasst von: Antônio Carlos Rodrigues Guimarães
Sérgio Neves Monteiro
Lisley Madeira Coelho
Verlag: Springer Nature Singapore
Buch: Proceedings of the 5th International Conference on Transportation Geotechnics (ICTG) 2024, Volume 7
Print ISBN: 978-981-9782-36-9

Electronic ISBN: 978-981-9782-37-6

Copyright-Jahr: 2025
DOI: https://doi.org/10.1007/978-981-97-8237-6_13

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