Behaviour of Different Types of Sand Randomly Mixing with Various Natural Fibers

Maity, Joyanta; Chattopadhyay, B. C.; Mukherjee, S. K.

doi:10.1007/s40030-012-0014-7

Cited by 10 publications

(9 citation statements)

References 5 publications

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“…The nomenclature used for additives of this study induced an opposite trend in the OMC of the samples, where it rose as the fiber content incremented. A similar trend is reported by Maity et al(36) and Tran et al(34) when reinforcing sand with natural fiber. It can be attributed to the water absorption of fibers.…”

supporting

confidence: 88%

Direct and Indirect Tensile Behavior of Cement-Zeolite-amended Sand Reinforced with Kenaf Fiber

Mirzadeh,

Shirinabadi,

Mohammadi

et al. 2024

IJE

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Dealing with problematic soils is one of the most challenging parts of geotechnical engineers' careers. Loose sand is one of them due to its low cohesion and can be found worldwide, specifically in coastal regions. Chemical stabilizers like cement are of the prevalent ones among engineers to deal with the weaknesses of loose sand. However, the substitution of these traditional stabilizers with pozzolanic materials like natural zeolite become approved since it helps reduce cement consumption and hence, lower CO2 emission. Despite all advantages, brittle behavior is an unwelcome consequence of these stabilizers. Therefore, the aim of this study is to reduce the brittleness of the cement-zeolite-stabilized sand employing natural kenaf fibers. To this end, two cement contents, four amounts of zeolite replacement of cement, and three fiber contents in three lengths were adapted in two relative compactions (RC) to investigate the compaction, 8-shape direct tensile strength (DTS), and indirect tensile strength (ITS) behaviors. Experimental efforts revealed that compaction behavior is sensitive to stabilizer contents and fiber content and length. The addition of the 8% cement, increase of the zeolite up to 50%, and fiber increment up to 1.5% led to the reduction of the compaction properties; however, optimum moisture content increased with the rise in kenaf fiber. A notable influence on the DTS and ITS behavior was observed while 30% zeolite replacement in 8%-cemented samples and reinforced with 1% kenaf fiber with 10mm length. Furthermore, a linear relationship was presented between DTS and ITS. In the end, the reinforced sample was analyzed using Scanning Electron Microscope (SEM) images.

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supporting

confidence: 88%

Direct and Indirect Tensile Behavior of Cement-Zeolite-amended Sand Reinforced with Kenaf Fiber

Mirzadeh,

Shirinabadi,

Mohammadi

et al. 2024

IJE

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“…In earlier times, people mixed sand with geomembrane/geotextile or cement/lime/fly ash to improve the physical and engineering behaviors of the soil to achieve a specific level of performance [3,4,5,6,7]. With in-depth research, fibers attracted the interested attention of scholars and researchers with several strengths [8,9,10,11], e.g., it is easily mixed randomly and evenly with soil, it avoids forming some potential weak planes with great strength, and it has gained plenty of important achievements [12,13,14,15]. The influence of fiber types including synthetic fiber, plant fiber, fiber sizes (length, diameter), and fiber contents (i.e., the weight ratio of fibers to soil) on the resistance of liquefaction, strength behaviors, and mechanical mechanism are researched in depth.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on the Shear Behaviors of Polymer-Sand Composite Materials after Immersion

Jin

Bai

et al. 2018

Polymers

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Sand mixed with geotextile/fiber/cement/lime or non-traditional chemical additives to form composite materials is recognized as an effective method for improving the sand properties. In this work, the variation in properties of composite materials after immersion is reported which has rarely appeared in the literature. The focus of this study is to evaluate the shear behaviors of polymer-sand composite material after immersion with direct shear tests. Several factors which may influence the shear behaviors after immersion are analyzed. The results demonstrate that this composite material still has good shear behaviors after immersion when compared to the purely sand material. The shear behaviors are improved with an increment in the curing time, polymer content and sand dry density while there is a decrease in the shear behaviors with increasing immersion time. The interaction between sand particles and the polymer are analyzed with Scanning Electron Microscope (SEM). The polymer membranes are formed by polymer enwrapping and connected sand particles to build an elastic and viscous structure in the sand that increases the interlocking forces between sand particles and decreases the void ratio of this material. The membranes are softened in water resulting in a decrease in the shear strength. Moreover, other factors affect the shear behaviors by improving the completeness and stability of this structure.

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“…Tang et al [20] have reported that using randomly distributed fiber as reinforcements exhibits several advantages in comparison with planar geosynthetics including: discrete fibers can be simply added and mixed with soil, in much the same way as cement, lime and other additives; randomly distributed fibers can limit the potential planes of weakness that can develop parallel to conventional oriented reinforcement, and provide isotropic increase in the strength of the soil composite. Randomly distributed fibers can be distinguished by its material; in fact, many types of fibers are used by researchers for reinforcing both granular and cohesive soils, such as polypropylene fibers [8,20], vegetal fibers [12], polyethylene terephthalate fibers [3], linen fibers [10] and glass fibers [1].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of using rubber waste fibers as reinforcements for sandy soils

Meddah

Merzoug

2017

Innov. Infrastruct. Solut.

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In this study, an alternative and environmentally friendly method for the reinforcement of dune sand is proposed. This technique consists of using randomly distributed rubber fibers to improve the engineering properties of sand. Rubber fibers are added to the sand with different percentages: 0.25, 0.5, 0.75, 1, 1.25, 1.5, 1.75 and 2% of dry weight of sand. The experimental program carried out consists of investigating the effect of rubber fibers on the shear strength properties of sand. Reinforced and unreinforced samples are tested in the dense as well as loose state. The results obtained showed that the inclusion of rubber fibers in dune sand will improve the engineering properties of various civil engineering applications such as shallow foundations and slope. Therefore, incorporation of rubber fibers can enhance the shear strength characteristics, peak and residual strengths, and introduce more ductility to the mechanical behavior of sand. In addition to the technical effect, this paper emphasizes another environmentally attractive option, which is the use of rubber fibers as reinforcements for granular soils as this helps to remove some parts of these wastes and protect the environment.

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Behaviour of Different Types of Sand Randomly Mixing with Various Natural Fibers

Cited by 10 publications

References 5 publications

Direct and Indirect Tensile Behavior of Cement-Zeolite-amended Sand Reinforced with Kenaf Fiber

Direct and Indirect Tensile Behavior of Cement-Zeolite-amended Sand Reinforced with Kenaf Fiber

An Experimental Study on the Shear Behaviors of Polymer-Sand Composite Materials after Immersion

Feasibility of using rubber waste fibers as reinforcements for sandy soils

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