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Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil

Constructing structures on lateritic soil is challenging in geotechnical engineering due to the various physical and geotechnical characteristics. Many studies investigated different stabiliser materials to strengthen the geotechnical parameters of lateritic soil. This study used activated carbon an...

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Main Authors: Tamassoki, Sakina, Nik Daud, Nik Norsyahariati, Mohd Jakarni, Fauzan, Mohd. Kusin, Faradiella, A. Rashid, Ahmad Safuan, Roshan, Mohammad Jawed
Format: Article
Published: MDPI AG 2022
Online Access:http://psasir.upm.edu.my/id/eprint/100771/
https://www.mdpi.com/2071-1050/14/15/9100
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spelling my.upm.eprints.1007712023-09-11T01:49:59Z http://psasir.upm.edu.my/id/eprint/100771/ Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil Tamassoki, Sakina Nik Daud, Nik Norsyahariati Mohd Jakarni, Fauzan Mohd. Kusin, Faradiella A. Rashid, Ahmad Safuan Roshan, Mohammad Jawed Constructing structures on lateritic soil is challenging in geotechnical engineering due to the various physical and geotechnical characteristics. Many studies investigated different stabiliser materials to strengthen the geotechnical parameters of lateritic soil. This study used activated carbon and coir fibre (ACF) to stabilise lateritic soils as an environmentally friendly binder. Experiments including the unconfined compressive strength (UCS) test and the direct shear test (DST) are performed to investigate the mechanical properties of ACF-stabilised soil for different percentages of activated carbon (AC). Before and after ACF stabilisation, microstructural characterisations of soil samples were performed using field emission scanning electron microscopy (FESEM) and surface-area analysis (BET). The experimental results demonstrate that 3% ACF can considerably enhance the compressive strength, while 2% ACF significantly improves the shear strength, of lateritic soil. Accordant to the UCS results, using fibre in AC-stabilised soil improves post-peak behaviour and residual strength. Moreover, 2% ACF can significantly improve shear strength by creating an interlocking matrix among AC, soil particles, and fibre. The microstructural characterisation based on the findings obtained by FESEM and BET analysis confirms that AC particles fill soil voids. AC restrains the soil movement when exposed to external stresses. In addition, the formation of gel in the stabilised soil matrix binds the soil particles, increasing the strength of the ACF-stabilised soil in comparison with untreated soil. MDPI AG 2022-07-25 Article PeerReviewed Tamassoki, Sakina and Nik Daud, Nik Norsyahariati and Mohd Jakarni, Fauzan and Mohd. Kusin, Faradiella and A. Rashid, Ahmad Safuan and Roshan, Mohammad Jawed (2022) Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil. Sustainability, 14 (15). art. no. 9100. pp. 1-18. ISSN 2071-1050 https://www.mdpi.com/2071-1050/14/15/9100 10.3390/su14159100
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Constructing structures on lateritic soil is challenging in geotechnical engineering due to the various physical and geotechnical characteristics. Many studies investigated different stabiliser materials to strengthen the geotechnical parameters of lateritic soil. This study used activated carbon and coir fibre (ACF) to stabilise lateritic soils as an environmentally friendly binder. Experiments including the unconfined compressive strength (UCS) test and the direct shear test (DST) are performed to investigate the mechanical properties of ACF-stabilised soil for different percentages of activated carbon (AC). Before and after ACF stabilisation, microstructural characterisations of soil samples were performed using field emission scanning electron microscopy (FESEM) and surface-area analysis (BET). The experimental results demonstrate that 3% ACF can considerably enhance the compressive strength, while 2% ACF significantly improves the shear strength, of lateritic soil. Accordant to the UCS results, using fibre in AC-stabilised soil improves post-peak behaviour and residual strength. Moreover, 2% ACF can significantly improve shear strength by creating an interlocking matrix among AC, soil particles, and fibre. The microstructural characterisation based on the findings obtained by FESEM and BET analysis confirms that AC particles fill soil voids. AC restrains the soil movement when exposed to external stresses. In addition, the formation of gel in the stabilised soil matrix binds the soil particles, increasing the strength of the ACF-stabilised soil in comparison with untreated soil.
format Article
author Tamassoki, Sakina
Nik Daud, Nik Norsyahariati
Mohd Jakarni, Fauzan
Mohd. Kusin, Faradiella
A. Rashid, Ahmad Safuan
Roshan, Mohammad Jawed
spellingShingle Tamassoki, Sakina
Nik Daud, Nik Norsyahariati
Mohd Jakarni, Fauzan
Mohd. Kusin, Faradiella
A. Rashid, Ahmad Safuan
Roshan, Mohammad Jawed
Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil
author_facet Tamassoki, Sakina
Nik Daud, Nik Norsyahariati
Mohd Jakarni, Fauzan
Mohd. Kusin, Faradiella
A. Rashid, Ahmad Safuan
Roshan, Mohammad Jawed
author_sort Tamassoki, Sakina
title Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil
title_short Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil
title_full Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil
title_fullStr Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil
title_full_unstemmed Compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil
title_sort compressive and shear strengths of coir fibre reinforced activated carbon stabilised lateritic soil
publisher MDPI AG
publishDate 2022
url http://psasir.upm.edu.my/id/eprint/100771/
https://www.mdpi.com/2071-1050/14/15/9100
_version_ 1778163740536995840
score 13.211869

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