Influence of Abaca Fiber Inclusion on the Unconfined Compressive Strength of Reconstituted Sandy Silts

The present investigation determines the influence of abaca (Musa textilis) fiber inclusion on the simple compressive strength of reconstituted sandy silt specimens. For this purpose, fibers of different lengths (5, 10 and 15 mm) and quantities (0.5, 1.0, 1.5 and 2.0% of soil dry weight) are added t...

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Main Authors: Jorge Albuja-Sánchez, Eduardo Alcívar, Daniela Escobar, Juan Montero, Guillermo Realpe, Andrés Muñoz, Mateo Peñaherrera-Aguirre
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Fibers
Subjects:
Online Access:https://www.mdpi.com/2079-6439/10/11/99
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author Jorge Albuja-Sánchez
Eduardo Alcívar
Daniela Escobar
Juan Montero
Guillermo Realpe
Andrés Muñoz
Mateo Peñaherrera-Aguirre
author_facet Jorge Albuja-Sánchez
Eduardo Alcívar
Daniela Escobar
Juan Montero
Guillermo Realpe
Andrés Muñoz
Mateo Peñaherrera-Aguirre
author_sort Jorge Albuja-Sánchez
collection DOAJ
description The present investigation determines the influence of abaca (Musa textilis) fiber inclusion on the simple compressive strength of reconstituted sandy silt specimens. For this purpose, fibers of different lengths (5, 10 and 15 mm) and quantities (0.5, 1.0, 1.5 and 2.0% of soil dry weight) are added to produce the reconstituted specimens. Subsequently, the physical and mechanical behavior of soil–fiber mixtures were evaluated through compaction and unconfined compression tests. The experimental results showed that increases in fiber content or length, or both, led to a 1235.1% increase in maximum compression stress (compared to the fiber-free soil). Compression failure occurred at a greater axial strain when 10 and 15 mm fibers were added at 1% dosage or in percentages equal to or greater than 1.5% regardless of fiber length. A series of linear mixed models identified statistically significant effects of fiber length and percentage on the level of effort and on the unitary deformation.
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spelling doaj.art-455198e491594fe6b41e3b5831145f962023-11-24T08:20:11ZengMDPI AGFibers2079-64392022-11-0110119910.3390/fib10110099Influence of Abaca Fiber Inclusion on the Unconfined Compressive Strength of Reconstituted Sandy SiltsJorge Albuja-Sánchez0Eduardo Alcívar1Daniela Escobar2Juan Montero3Guillermo Realpe4Andrés Muñoz5Mateo Peñaherrera-Aguirre6Faculty of Engineering, Laboratory of Materials Resistance, Soil Mechanics, Pavements and Geotechnics, Pontificia Universidad Católica del Ecuador (PUCE), Quito 170143, EcuadorFaculty of Engineering, Laboratory of Materials Resistance, Soil Mechanics, Pavements and Geotechnics, Pontificia Universidad Católica del Ecuador (PUCE), Quito 170143, EcuadorFaculty of Engineering, Laboratory of Materials Resistance, Soil Mechanics, Pavements and Geotechnics, Pontificia Universidad Católica del Ecuador (PUCE), Quito 170143, EcuadorFaculty of Engineering, Laboratory of Materials Resistance, Soil Mechanics, Pavements and Geotechnics, Pontificia Universidad Católica del Ecuador (PUCE), Quito 170143, EcuadorFaculty of Engineering, Laboratory of Materials Resistance, Soil Mechanics, Pavements and Geotechnics, Pontificia Universidad Católica del Ecuador (PUCE), Quito 170143, EcuadorDepartment of Civil Engineering, Laboratory of Soil Mechanics, Universidad Central del Ecuador, Quito 170129, EcuadorCollege of Science, University of Arizona, Tucson, AZ 85721, USAThe present investigation determines the influence of abaca (Musa textilis) fiber inclusion on the simple compressive strength of reconstituted sandy silt specimens. For this purpose, fibers of different lengths (5, 10 and 15 mm) and quantities (0.5, 1.0, 1.5 and 2.0% of soil dry weight) are added to produce the reconstituted specimens. Subsequently, the physical and mechanical behavior of soil–fiber mixtures were evaluated through compaction and unconfined compression tests. The experimental results showed that increases in fiber content or length, or both, led to a 1235.1% increase in maximum compression stress (compared to the fiber-free soil). Compression failure occurred at a greater axial strain when 10 and 15 mm fibers were added at 1% dosage or in percentages equal to or greater than 1.5% regardless of fiber length. A series of linear mixed models identified statistically significant effects of fiber length and percentage on the level of effort and on the unitary deformation.https://www.mdpi.com/2079-6439/10/11/99simple compression testunconfined compression testabaca fibersoil improvementfiber-reinforced soil
spellingShingle Jorge Albuja-Sánchez
Eduardo Alcívar
Daniela Escobar
Juan Montero
Guillermo Realpe
Andrés Muñoz
Mateo Peñaherrera-Aguirre
Influence of Abaca Fiber Inclusion on the Unconfined Compressive Strength of Reconstituted Sandy Silts
Fibers
simple compression test
unconfined compression test
abaca fiber
soil improvement
fiber-reinforced soil
title Influence of Abaca Fiber Inclusion on the Unconfined Compressive Strength of Reconstituted Sandy Silts
title_full Influence of Abaca Fiber Inclusion on the Unconfined Compressive Strength of Reconstituted Sandy Silts
title_fullStr Influence of Abaca Fiber Inclusion on the Unconfined Compressive Strength of Reconstituted Sandy Silts
title_full_unstemmed Influence of Abaca Fiber Inclusion on the Unconfined Compressive Strength of Reconstituted Sandy Silts
title_short Influence of Abaca Fiber Inclusion on the Unconfined Compressive Strength of Reconstituted Sandy Silts
title_sort influence of abaca fiber inclusion on the unconfined compressive strength of reconstituted sandy silts
topic simple compression test
unconfined compression test
abaca fiber
soil improvement
fiber-reinforced soil
url https://www.mdpi.com/2079-6439/10/11/99
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