Behaviour of the Undrained Shear Strength of Soft Clay Reinforced with Natural Fibre

Suffri, Nurafiqah; Jeludin, Muneerah; Rahim, S. H. Abdul

doi:10.1088/1757-899x/690/1/012005

Cited by 11 publications

(7 citation statements)

References 5 publications

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“…The test showed that 0.5% fiber content resulted in an optimum increase [11]. Suffri, et al stated that coir fiber can increase the shear strength of soft clay with moderate plasticity in Brunei Darussalam [12]. Research Upadhyay and Singh showed an increase in shear strength with an increase in cohesion value by 34.7%…”

Section: Literature Reviewmentioning

confidence: 99%

Direct Shear Strength of Clay Reinforced with Coir Fiber

Widianti

Diana

Hasana

2020

UKaRsT

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Indonesia is the largest coconut producing country in the world. However, the resulting coir waste is still rarely used for structural materials. This research studied the effect of random inclusion of coir fiber on the shear strength of clay with high plasticity. The carried test in this study is a direct shear strength test. The fiber content variations used are 0%, 0.25%, 0.50%, 0.75%, and 1% of the dry weight of the mixture with a fiber length of between 30 mm to 50 mm. The results show that the reinforcement of coir fiber can increase the cohesion and friction angle. The maximum increase in cohesion value was obtained at fiber content of 0.75%, which was 39.66%. The increase in the value of the friction angle was obtained at 1% fiber content, which was 46.67%. The optimum coir fiber content was achieved at the fiber content of 0.75%. With this content, the value of the shear strength reaches its maximum with an increase of 39.4% at a normal stress of 8.071 kPa.

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Section: Literature Reviewmentioning

confidence: 99%

Direct Shear Strength of Clay Reinforced with Coir Fiber

Widianti

Diana

Hasana

2020

UKaRsT

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“…The implementation of group-enclosed lime bottom ash columns enhanced clay soil shear strength. In his research, Suffri [13] used crushed coir fibres, and fibre incorporation affected the soil's undrained shear ability. Hong [14] evaluated the use of polypropylene and concluded that the parameters of the polypropylene column used to strengthen the sample significantly influenced the shear strength enhancement of the kaolin clay.…”

Section: Introductionmentioning

confidence: 99%

Shear Strength of Soft Clay Reinforced With Acrylonitrile Butadiene Styrene (Abs) Column

Nedunchelian,

Hasan

2023

AEJ

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The troublesome soil that many geotechnical engineers encounter in the sector is clay soil. It presents a major danger to the foundations of light structures. Granular columns have proved beneficial in resolving foundation stabilisation and settling issues, making soft clay more appropriate for foundation building. This study aims to determine whether adding acrylonitrile butadiene styrene (ABS) to kaolin clay increases its shear strength. The physical, mechanical, and morphological properties of the materials used in this research (i.e., kaolin and ABS) must first be identified. The soft clay kaolin was strengthened with ABS columns and tested using the unconfined compression test (UCT) and the unconsolidated undrained test (UUT). The diameter of the columns used in this study was 8, 12, and 16 mm, while the penetration depth ratio used was 0.5, 0.75, and 1.0. The highest improvement in shear strength occurred at a height penetration ratio of 0.5 with values of 102.94%, 48.56%, and 50.02%. The UCT results demonstrated a decrease in the volume of the replacement ratio, followed by an increase in the height of the column. The UUT was conducted to evaluate the soft clay's shear strength when reinforced with an ABS column. The cell pressure used was 50, 100, and 200 kPa with the same column diameter specification as the UCT. The friction angle, υ, increased significantly from 8.92% to 18.21%. Furthermore, there was an improvement in cohesiveness, c, which increased from 4.54% to 45.45%. The results show that installing ABS columns improves the strength and compressibility of clay samples.

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“…There have been many methods of soil improvement to enhance the physical and mechanical properties of clay. One of them is by providing soil reinforcement by inserting material into the soil to increase stability and reduce compressibility and lateral deformation [3]. One of the materials used is fiber mixed randomly into the soil.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Coir Fibers to Improve the Bearing Capacity and Tensile Strength of Expansive Clay

Widianti¹

2022

GEOMATE

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Reinforcement is a method to improve soils with low bearing capacity and tensile strength. Coconut coir waste is an alternative reinforcement material because coir fibers have high tensile strength, high shear strength, and high resistance to compressive stress. This study performed the soaked and unsoaked California Bearing Ratio (CBR), the swelling, and the indirect tensile strength tests focusing on expansive clay reinforced with coir fibers. The content of coir fibers was between 0.00% to 1.25% by weight of the mixture. The fibers were cut into 30 mm to 50 mm long pieces, then mixed randomly into the soil in various content. The mixture was compacted based on the maximum dry density and the optimum moisture content of the clay. The test results revealed that the soaked and unsoaked CBR reached the maximum values at 1% fiber content. Originally of poor quality, the soil condition became quite good after being reinforced with an optimum fiber content of 1%. All specimens swelled when soaked. The swelling values tended to increase with the addition of coir fibers. Hence, the expansive clay must be chemically stabilized to reduce swelling. The tensile strength reached the maximum value at 0.6% fiber content.

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Behaviour of the Undrained Shear Strength of Soft Clay Reinforced with Natural Fibre

Cited by 11 publications

References 5 publications

Direct Shear Strength of Clay Reinforced with Coir Fiber

Direct Shear Strength of Clay Reinforced with Coir Fiber

Shear Strength of Soft Clay Reinforced With Acrylonitrile Butadiene Styrene (Abs) Column

Utilization of Coir Fibers to Improve the Bearing Capacity and Tensile Strength of Expansive Clay

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