Microstructure and mechanical performance of modified mortar using hemp fibres and carbon nanotubes

Rabah Hamzaoui; Sofiane Guessasma; Boubakeur Mecheri; Amir M. Eshtiaghi; Abdelkrim Bennabi

doi:10.1016/j.matdes.2013.10.084

Microstructure and mechanical performance of modified mortar using hemp fibres and carbon nanotubes

Rabah Hamzaoui, Sofiane Guessasma, Boubakeur Mecheri, Amir M. Eshtiaghi, Abdelkrim Bennabi

Physical Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

Mechanical performance of modified mortar using hemp fibres is studied following various processing conditions. Hemp fibres combined with carbon nanotubes (CNT) are introduced in mortar and their effect is studied as function of curing time. The cement phase is replaced by different percentages of dry or wet hemp fibres ranging from 1.1. wt% up to 3.1. wt% whereas carbon nanotubes are dispersed in the aqueous solution. Our experimental results show that compressive and flexural strengths of wet fibres modified mortar are higher than those for dry hemp-mortar material. The achieved optimal percentage of wet hemp fibres is 2.1. wt% allowing a flexural strength higher than that of reference mortar. The addition of an optimal CNT concentration (0.01. wt%) combined with wet hemp has a reinforcing effect which turns to be related to an improvement of compressive and flexural strengths by 10% and 24%, respectively, in comparison with reference condition. © 2013 Elsevier Ltd.

Original language	English (US)
Pages (from-to)	60-68
Number of pages	9
Journal	Materials & Design
Volume	56
DOIs	https://doi.org/10.1016/j.matdes.2013.10.084
State	Published - Apr 2014

ASJC Scopus subject areas

Mechanics of Materials
General Materials Science
Mechanical Engineering

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10.1016/j.matdes.2013.10.084

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title = "Microstructure and mechanical performance of modified mortar using hemp fibres and carbon nanotubes",

abstract = "Mechanical performance of modified mortar using hemp fibres is studied following various processing conditions. Hemp fibres combined with carbon nanotubes (CNT) are introduced in mortar and their effect is studied as function of curing time. The cement phase is replaced by different percentages of dry or wet hemp fibres ranging from 1.1. wt% up to 3.1. wt% whereas carbon nanotubes are dispersed in the aqueous solution. Our experimental results show that compressive and flexural strengths of wet fibres modified mortar are higher than those for dry hemp-mortar material. The achieved optimal percentage of wet hemp fibres is 2.1. wt% allowing a flexural strength higher than that of reference mortar. The addition of an optimal CNT concentration (0.01. wt%) combined with wet hemp has a reinforcing effect which turns to be related to an improvement of compressive and flexural strengths by 10% and 24%, respectively, in comparison with reference condition. {\textcopyright} 2013 Elsevier Ltd.",

author = "Rabah Hamzaoui and Sofiane Guessasma and Boubakeur Mecheri and Eshtiaghi, {Amir M.} and Abdelkrim Bennabi",

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AU - Hamzaoui, Rabah

AU - Guessasma, Sofiane

AU - Mecheri, Boubakeur

AU - Eshtiaghi, Amir M.

AU - Bennabi, Abdelkrim

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2014/4

Y1 - 2014/4

N2 - Mechanical performance of modified mortar using hemp fibres is studied following various processing conditions. Hemp fibres combined with carbon nanotubes (CNT) are introduced in mortar and their effect is studied as function of curing time. The cement phase is replaced by different percentages of dry or wet hemp fibres ranging from 1.1. wt% up to 3.1. wt% whereas carbon nanotubes are dispersed in the aqueous solution. Our experimental results show that compressive and flexural strengths of wet fibres modified mortar are higher than those for dry hemp-mortar material. The achieved optimal percentage of wet hemp fibres is 2.1. wt% allowing a flexural strength higher than that of reference mortar. The addition of an optimal CNT concentration (0.01. wt%) combined with wet hemp has a reinforcing effect which turns to be related to an improvement of compressive and flexural strengths by 10% and 24%, respectively, in comparison with reference condition. © 2013 Elsevier Ltd.

AB - Mechanical performance of modified mortar using hemp fibres is studied following various processing conditions. Hemp fibres combined with carbon nanotubes (CNT) are introduced in mortar and their effect is studied as function of curing time. The cement phase is replaced by different percentages of dry or wet hemp fibres ranging from 1.1. wt% up to 3.1. wt% whereas carbon nanotubes are dispersed in the aqueous solution. Our experimental results show that compressive and flexural strengths of wet fibres modified mortar are higher than those for dry hemp-mortar material. The achieved optimal percentage of wet hemp fibres is 2.1. wt% allowing a flexural strength higher than that of reference mortar. The addition of an optimal CNT concentration (0.01. wt%) combined with wet hemp has a reinforcing effect which turns to be related to an improvement of compressive and flexural strengths by 10% and 24%, respectively, in comparison with reference condition. © 2013 Elsevier Ltd.

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DO - 10.1016/j.matdes.2013.10.084

M3 - Article

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VL - 56

SP - 60

EP - 68

JO - Materials & Design

JF - Materials & Design

ER -

Microstructure and mechanical performance of modified mortar using hemp fibres and carbon nanotubes

Abstract

ASJC Scopus subject areas

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