Compressibility and Strength Development of Soft Soil by Polypropylene Fiber

Al-Kaream, Khalid W. Abd

doi:10.21660/2022.93.3206

Cited by 12 publications

(8 citation statements)

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“…Artificial fibers are preferred because they have high strength, are light, flexible and highly resistant to environmental effects [2]. Glass fiber [3][4][5][6][7][8], polypropylene fiber [8][9][10][11][12] and carbon fiber [13] are used as reinforcement in several studies and studies using these fibers as reinforcement stated that improvements in soil properties occurred.…”

Section: Introductionmentioning

confidence: 99%

Increasing Strength of Clay Soils with the Use of Basalt Fiber: An Experimental Study

Aslan Topçuoğlu,

Gürocak

2024

Turkish Journal of Science and Technology

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Due to the increase in population, the demand for buildings increases. Engineering properties of the soils on which these structures will be built may not always meet the desired conditions. In such cases, soil improvement methods are used. One of these methods is additive used stabilization, in which additives such as lime, fly ash, volcanic ash and tuff, silica fume and blast furnace slag are used. This method has been used successfully for years. However, in recent years, interest in the use of different types of fibers has increased. Some of these fibers are glass, basalt, polypropylene and carbon. Especially basalt fibers have begun to attract attention in soil reinforcement applications due to the properties of their raw material, basalt rock, which is widely distributed in nature, natural and has high strength. In this study, the effect of basalt fiber reinforcement on the unconfined compressive strength of high plasticity bentonite clay was revealed. For this purpose, 12 mm length basalt fiber in different proportions (1%, 2%, 3%, 4% and 5%) was used as reinforcement in bentonite clay and the optimum fiber ratio that provided the maximum increase in strength was determined. According to the results of the study, when 12 mm length basalt fiber was used as reinforcement in bentonite clay, the maximum strength value was obtained at 4% basalt fiber ratio. However, at values higher than this ratio, the strength value decreased. It has been determined that basalt fiber reinforcement improves the strength properties of bentonite clay.

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Section: Introductionmentioning

confidence: 99%

Increasing Strength of Clay Soils with the Use of Basalt Fiber: An Experimental Study

Aslan Topçuoğlu,

Gürocak

2024

Turkish Journal of Science and Technology

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“…Most recently in research, many researchers took interest in the field of soil reinforcement using polypropylene fiber. Reshma et al (2022) examined the effect of polypropylene fibers and alccofine on soil stabilization [24], whereas the strength and deformation of soft soil by polypropylene fiber was studied by Al-Kaream et al (2022) [25]. Yang et al ( 2022) elaborated an experimental study on the strength of polypropylene fiber reinforced cemented silt soil [26].…”

Section: Introductionmentioning

confidence: 99%

Effect of Polypropylene Fibers on Swelling Potential and Shear Strength of Clay

2023

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Expansive clays can cause major problems for urban development (roads, railways, infrastructure, etc.); therefore, reducing the swelling potential of clays has always been a concern in the geotechnical field. The presented paper investigates the effect of polypropylene reinforcement fibers on the swelling potential and shear strength of clay. The samples studied were taken from the clayey region of Mila, located in the northern east of Algeria. The experimental procedure adopted in this research consists first of the assessment of the physical, mechanical, and mineralogical characteristics of the soil samples without reinforcement. Then, swelling pressure, swelling rate, and swelling index are used to assess the swelling potential of these samples. After the reinforcement using a variety of polypropylene fiber concentrations (2 to 6% of the weight of the dry clay), the free swelling is clearly reduced. The optimum reinforcement rate in this case is 4%, in which the swelling was reduced by 90.7%. Finally, to offer more insights regarding the impact of clay reinforcement using polypropylene fibers, the effect of this later on the mechanical properties of the studied clay was also analyzed through the tangential shear strength. It was found that the polypropylene fibers increased the tangential shear resistance of Mila’s clay. Doi: 10.28991/CEJ-2023-09-03-04 Full Text: PDF

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“…Mechanical stabilization can be conducted by replacing, compacting, or strengthening the soil [1]. In contrast, chemical stabilization can be accomplished with the help of additives containing calcium, silica, or aluminum elements, such as lime, cement, fly ash, rice husk ash, or other chemical liquids [2][3]. These components would be influenced by the soil's physical and geotechnical properties due to a chemical reaction between them [4].…”

Section: Introductionmentioning

confidence: 99%

Combination of Coir Fiber Waste and Coir-Wood Ash for Expansive Clay Stabilization

Widianti

2023

GEOMATE

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Coir waste randomly mixed into soil is an alternative material for strengthening expansive clay. However, these materials cannot reduce swelling due to water, requiring chemical stabilization. This study combined coir fibers with a mixture of coir-wood ash, the waste from the tofu home industry. No studies have utilized such a combination of structural materials. This study aims to examine the soaked and unsoaked California Bearing Ratio (CBR), swelling, unconfined compressive strength (UCS), and tensile strength of soil mixed with 0.75% fibers, and ash with varying content: 0%, 2%, 4%, 6%, 8%, and 10% of the mixture's total weight. The curing time was seven days, 14 days, and 28 days. Testing refers to ASTM. The test results unveiled that the unsoaked CBR, soaked CBR, UCS, and tensile strength increased with rising ash content and curing time. A 6%-8% ash content produced the highest CBR, UCS, and tensile strength. On the other hand, by including a 6%-10% ash content, the swelling was decreased to 0%. Combining coir fiber and coir-wood ash has proven very effective for stabilizing expansive clays. In comparison to soils merely reinforced with fiber, the addition of coir-wood ash can eliminate swelling and increase the value of soaked CBR, UCS, tensile strength, and secant modulus up to 534%, 349%, 105%, and 824 %, respectively.

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Compressibility and Strength Development of Soft Soil by Polypropylene Fiber

Cited by 12 publications

References 0 publications

Increasing Strength of Clay Soils with the Use of Basalt Fiber: An Experimental Study

Increasing Strength of Clay Soils with the Use of Basalt Fiber: An Experimental Study

Effect of Polypropylene Fibers on Swelling Potential and Shear Strength of Clay

Combination of Coir Fiber Waste and Coir-Wood Ash for Expansive Clay Stabilization

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