In this study, coir fibres were modified with nanoparticles of calcium hydroxide and magnesium hydroxide via a chemical treatment in order to increase the tensile strength of the fibres and their interaction with soil. To evaluate the modification and its effects, unconfined compressive strength tests, indirect tensile strength tests, flexural strength tests and triaxial compressive strength tests were carried out at 7, 28 and 90 days of curing age on lime-treated soil reinforced with modified and unmodified fibres. The obtained results showed that nano-modification of fibres enhanced the mechanical properties of the lime-treated clay soil due to the tensile strength of the augmented fibres. The results showed that the compressive strength, the indirect tensile strength and the flexural strength of samples treated with modified coir fibres increased by 64%, 122% and 56%, respectively compared to that of samples treated with unmodified fibres. Moreover, an increase in the effective internal friction angle and the cohesion intercept was observed. Also, the results of scanning electron microscopy and energy dispersive X-ray confirmed a desired alteration in morphology of the fibres.
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June 2016
Research Article|
January 11 2016
Effects of coir fibres modified with Ca(OH)2 and Mg(OH)2 nanoparticles on mechanical properties of lime-treated marine clay Available to Purchase
V. Anggraini;
V. Anggraini
PhD student
1Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia, Telephone: +601 2244 2058; Telefax: +603 8946 4232; E-mail: vianggraini@gmail.com (corresponding author)
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A. Asadi;
A. Asadi
PhD Research Fellow
2Housing Research Centre, Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia, Telephone: +603 8946 7849/7850/7856; Telefax: +603 8946 7869; E-mail: afshin.asadi@yahoo.com
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N. Farzadnia;
N. Farzadnia
PhD Postdoctoral Fellow
3Housing Research Centre, Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia, Telephone: +603 8946 7849/7850/7856; Telefax: +603 8946 7869; E-mail: nimafarzadnia@gmail.com
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H. Jahangirian;
H. Jahangirian
PhD Research Scholar
4Department of Chemical Engineering, 313 Snell Engineering Centre, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA, Telephone: +001-617-373-2989, Telefax: +001-617-373-2209; E-mail: kamran.jahangirian@gmail.com
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B. B. K. Huat
B. B. K. Huat
Professor
5Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia, Telephone: +603 8946 4201; Telefax: +603 8946 4232; E-mail: bujang@upm.edu.my
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Publisher: Emerald Publishing
Received:
April 14 2015
Revision Received:
July 10 2015
Accepted:
October 03 2015
Online ISSN: 1751-7613
Print ISSN: 1072-6349
© 2015 Thomas Telford Ltd
2016
Geosynthetics International (2016) 23 (3): 206–218.
Article history
Received:
April 14 2015
Revision Received:
July 10 2015
Accepted:
October 03 2015
Citation
Anggraini V, Asadi A, Farzadnia N, Jahangirian H, Huat BBK (2016), "Effects of coir fibres modified with Ca(OH)2 and Mg(OH)2 nanoparticles on mechanical properties of lime-treated marine clay". Geosynthetics International, Vol. 23 No. 3 pp. 206–218, doi: https://doi.org/10.1680/jgein.15.00046
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