Compressive and Shear Strengths of Coir Fibre Reinforced Activated Carbon Stabilised Lateritic Soil

Tamassoki, Sakina; Daud, Nik Norsyahariati Nik; Jakarni, Fauzan Mohd; Kusin, Faradiella Mohd; Rashid, Ahmad Safuan A.; Roshan, Mohammad Jawed

doi:10.3390/su14159100

Cited by 21 publications

(7 citation statements)

References 61 publications

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“…The cement hydration and pozzolanic reactions produce calcium silicate hydrate (CSH) and calcium aluminate hydrate (CAH), leading to strength gains in calcium-based stabilized geomaterials [ 100 , 101 ], particularly cement-stabilized composites [ 102 , 103 ]. A previous study’s findings showed that cement hydration products fully adhere to the surface of carbon nanomaterials [ 104 ].…”

Section: Resultsmentioning

confidence: 99%

Performance of Self-Sensing Cement-Stabilized Sand under Various Loading Conditions

Roshan,

Abedi,

Gomes Correia

et al. 2024

Sensors

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Numerous elements, such as the composition and characteristics of carbon nanomaterials, the composition and characteristics of the matrix material, moisture levels, temperature, and loading circumstances, influence the piezoresistive behavior of self-sensing cementitious composites. While some past research has explored the impact of some of these factors on the performance of self-sensing cementitious composites, additional investigations need to be conducted to delve into how loading conditions affect the sensitivity of self-sensing cement-stabilized composites. Therefore, this study explores the influences of various loading conditions (i.e., location of loading regarding the location of recording electrodes, and loading level) on the electromechanical performance of self-sensing cement-stabilized sand. To this end, firstly, the evaluation of the percolation threshold based on 10% cement-stabilized sand specimens containing various multiwall carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) was performed. Then, 10% cement-stabilized sand containing 4% MWCNTs/GNPs was tested under various cyclic compressive stresses. The results suggested that the distance between the loading area and the electrode location used for recording the electrical resistance significantly impacted the sensitivity of cement-stabilized sand. Optimal sensitivity was achieved when the electrodes were positioned directly beneath the loading area. Moreover, the study showed that the stress sensitivity of self-sensing cement-stabilized sand increased proportionally with the stress level. An examination through scanning electron microscopy (SEM) demonstrated that the loading condition influences the bridging characteristics of carbon nanomaterials in cement-stabilized sand, leading to diverse electromechanical behaviors emerging based on the loading condition. This study underscores the importance of considering specific parameters when designing self-sensing cement-stabilized sand for application in practical field use.

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Section: Resultsmentioning

confidence: 99%

Performance of Self-Sensing Cement-Stabilized Sand under Various Loading Conditions

Roshan,

Abedi,

Gomes Correia

et al. 2024

Sensors

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“…Furthermore, the addition of fiberglass was ineffective to deduce the volumetric strain of fiber-reinforced sulfate-rich dispersive soil. Tamassoki et al 22 stated that 3% content of activated carbon and coir fiber can significantly improved the compressive strength, while 2% content can remarkably enhanced the shear strength of lateritic soil. Soleimani-Fard et al 23 revealed that discrete distributed fibers can significantly improved the shear strength, compressive, and hydraulic conductivity of fiber-reinforced fine-grained soil.…”

Section: Introductionmentioning

confidence: 99%

Shear strength characteristics of basalt fiber-reinforced loess

Chen,

Li,

Liu

et al. 2023

Sci Rep

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Loess owns the characteristics of collapsibility, disintegration and solubility, which pose a challenge to engineering construction. To examine the shear strength of basalt fiber-reinforced (BFR) loess, consolidated undrained (CU) triaxial tests were conducted to explore the impacts of water content (w), fiber length (FL), fiber content (FC) and cell pressure (σ3) on the shear strength. According to the results, the shear strength model was established taken into account the impacts of FL, FC, and fiber diameter (d). The results showed that the peak strength of BFR soils enhanced as FL, FC, and σ3 increasing, whereas it decreased with increasing of w. Compared to unreinforced soil, the peak strength of BFR loess improved 64.60% when FC was 0.2% and FL was 16 mm. The optimum reinforcement condition for experimental loess was that of FL was 16 mm and FC was 0.8%. The reinforcing mechanism of fibers was divided into a single tensile effect and spatial mesh effect. The experimental and calculated results agreed well, which suggested the model is suitable for predicting the shear strength of BFR loess. The research results can offer a guideline for the application of BFR loess in the subgrade and slope engineering.

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“…As a reinforcement, synthetic and natural fibre increases tensile strength, improves stability (Tamassoki et al, 2022a) and reduces soil lateral deformation/settlement (He et al, 2021). Furthermore, adding fibre to lime/cement-stabilised soil can reduce the brittleness of treated soil (Hamidi & Hooresfand, 2013).…”

Section: Introductionmentioning

confidence: 99%

Fibre-Reinforced Soil Mixed Lime/Cement Additives: A Review

Tamassoki¹,

Daud²,

Nejabi³

et al. 2022

JST

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Soil modification is a technique for improving poor soil properties to make them suitable for engineering projects. Regarding the previous studies, various types of stabilisations were used to improve mechanical properties in soil. Several methodologies and experimental tests were used to study the positive and negative effects of utilising fibre on lime/cement-modified soil. This paper reviews the strength behaviour and microstructural properties of Fibre-Reinforced Lime Stabilised (FRLS) soil and Fibre-Reinforced Cement Stabilised (FRCS) Soil. First, the impact of FRLS/FRCS soil on strength behaviour under freeze-thaw conditions, the California Bearing Ratio (CBR) value, and compression/tensile strength are all examined. Then synthetic and natural fibres are compared at the microstructure level. FRCS/FRLS soil has been studied for its influence on geotechnical characteristics such as peak strength, residual strength, ductility, bearing capacity, stiffness, and settlement values. In addition, the micro-level evidence demonstrates that lime/cement affects the interlocking between soil particles and fibre. Although lime/cement improves soil strength by making it solid and compact, it makes stabilised soil brittle. Fibre as reinforcement in lime/cement stabilised soil transforms the brittleness of the soil into ductility. Hence building various infrastructures on poor soils is possible if fibre with lime/cement is used as an improvement method. Here, these three most used soil additive materials are investigated in terms of strength, microstructural, mineralisation, and some open issues are suggested for further research.

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Compressive and Shear Strengths of Coir Fibre Reinforced Activated Carbon Stabilised Lateritic Soil

Cited by 21 publications

References 61 publications

Performance of Self-Sensing Cement-Stabilized Sand under Various Loading Conditions

Performance of Self-Sensing Cement-Stabilized Sand under Various Loading Conditions

Shear strength characteristics of basalt fiber-reinforced loess

Fibre-Reinforced Soil Mixed Lime/Cement Additives: A Review

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