Effects of coir fibres modified with Ca(OH)2 and Mg(OH)2 nanoparticles on mechanical properties of lime-treated marine clay-Reference-Cited by-同舟云学术

Effects of coir fibres modified with Ca(OH)2 and Mg(OH)2 nanoparticles on mechanical properties of lime-treated marine clay

Published:2016-06 Issue:3 Volume:23 Page:206-218
ISSN:1072-6349
Container-title:Geosynthetics International
language:en
Short-container-title:Geosynthetics International

Author:

Anggraini V.¹,Asadi A.²,Farzadnia N.²,Jahangirian H.³,Huat B. B. K.⁴

Affiliation:

1. Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia, Telephone: +601 2244 2058; Telefax: +603 8946 4232;(corresponding author)

2. Housing 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;

3. Department 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;

4. Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia, Telephone: +603 8946 4201; Telefax: +603 8946 4232;

Abstract

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.

Publisher

Thomas Telford Ltd.

Subject

Geotechnical Engineering and Engineering Geology,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jgein.15.00046

Reference61 articles.

1. Effects of coir fibers on tensile and compressive strength of lime treated soft soil

2. Effect of Coir Fibers on the Tensile and Flexural Strength of Soft Marine Clay

3. Results of direct shear tests on geotextile reinforced cohesive soil

4. Performance of oil palm empty fruit bunch fibres coated with acrylonitrile butadiene styrene

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