Analysis of the Physical-Mechanical Behavior of Clayey Sand Soil Improved with Coir Fiber

Menezes, Lilian; Sousa, de; Fucale, Stela; Ferreira, Sílvio Romero de Melo

doi:10.28927/sr.421031

Cited by 7 publications

(6 citation statements)

References 18 publications

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“…The fibers will interact with each other. The amount of soil grain available is not enough to create a strong bond between the soil and the fibers [25][26].…”

Section: Fig 3 Relationship Between Coir Fiber Content and Cbr Valuesmentioning

confidence: 99%

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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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“…The fibers will interact with each other. The amount of soil grain available is not enough to create a strong bond between the soil and the fibers [25][26].…”

Section: Fig 3 Relationship Between Coir Fiber Content and Cbr Valuesmentioning

confidence: 99%

“…The optimum fiber content for the soil mixture was 1%. Menezes et al [26] analyzed the mechanical behavior of clay-sand soil by adding coir fibers. The highest tensile strength value was soil with 0.75% coir fiber reinforcement.…”

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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“…These results are the same as research conducted by Himanshu et al [11] and Sujatha et al [12], which says that the optimum fiber content is 0.75%. According to Menezes et al [15], the soil becomes active when subjected to external loads. This behavior will increase the interaction between soil and fiber so that the strength of the composite increases.…”

Section: Effect Of Coconut Fiber On Unconfined Compressive Strengthmentioning

confidence: 99%

“…In Venkatesh et al's research, the maximum value was obtained at 1% fiber [13], while the Upadhyay and Singh study obtained the maximum value at 1.5% fiber [14]. Menezes et al [15] conducted a UCS test on clayey sand soil. The highest UCS was obtained at the fiber content of 0.5%, namely 635.4 kPa or an increase of 50.78% of the soil original.…”

Section: Introductionmentioning

confidence: 99%

Unconfined Compressive Strength of Clay Strengthened by Coconut Fiber Waste

Widianti¹,

Diana²,

Fikriyah³

2021

Proceedings of the 4th International Conference on Sustainable Innovation 2020–Technology, Engineering and Agriculture (ICoSITE

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Indonesia is a country that produces the largest coconut in the world. 35% of the coconut volume is coir. Coir is a waste that has not been widely used for construction work. The coir fibers have the highest tensile strength among other natural fibers and have resistance to compressive forces. In this study, the unconfined compressive strength (UCS) of clay strengthened with coconut fiber is presented. The specimens were made with the fiber percentage of 0.00%; 0.25%; 0.50%; 0.75%; and 1.00% by weight of the mixture. This study concluded that the clay's UCS has increased along with the more coconut fiber added. The maximum value of UCS and secant modulus was obtained in clay with fibers of 0.75%. The clay strengthened with coconut fiber becomes stiffer than the initial clay, thereby improving its soil stability.

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“…Bu yöntemde zemini iyileştirmek için çimento, kireç, uçucu kül ve cüruf gibi kimyasal tabanlı katkı maddeleri sıkça tercih edilmektedir. Önceki çalışmalarda bu katkı maddelerinin dışında polimerler, cam su, asit ve epoksi gibi birçok farklı kimyasal katkı maddesi kullanılarak zeminlerin iyileştirilmeye çalışıldığı görülmüştür [2][3][4][5][6][7][8][9][10][11][12]. Bu çalışmaların sonucunda zeminin taşıma gücü ve oturma davranışı adına olumlu sonuçlar elde edildiği ifade edilmiştir.…”

Section: Introductionunclassified

Guar Gum ile İyileştirilen Kil Zeminlerin Donma Çözülme Etkisinde Mukavemet ve Şişme Basınçlarının Araştırılması

Bağrıaçık¹,

Bağrıaçık

2022

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi

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Nowadays, the areas of use of organic and environmentally friendly materials such as biopolymers have been increasing rapidly due to environmental concerns. The improvement of a cohesive soil using Guar Gum (GG) was investigated in this research. For this purpose, samples were prepared by adding GG to cohesive soil in some proportions (1%, 2%, and 3%). Specimens exposed to different numbers of freeze-thaw cycles (1, 3, 5, and 10) were cured for different times. Unconfined compression strength (UCS) and swelling pressure tests were carried out on the prepared samples. As a result, it was seen that the addition of biopolymer to the clay soils has a positive effect on strength values and swelling pressures. In addition, curing time and freeze-thaw conditions were thought to play an important role in soil improvement with the use of biopolymer.

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Analysis of the Physical-Mechanical Behavior of Clayey Sand Soil Improved with Coir Fiber

Cited by 7 publications

References 18 publications

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

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

Unconfined Compressive Strength of Clay Strengthened by Coconut Fiber Waste

Guar Gum ile İyileştirilen Kil Zeminlerin Donma Çözülme Etkisinde Mukavemet ve Şişme Basınçlarının Araştırılması

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