Fiber-reinforced sand strength and dilation characteristics

Eldesouky, H.M.G.; Morsy, Mohammed M.; Mansour, M.

doi:10.1016/j.asej.2015.06.003

Cited by 44 publications

(21 citation statements)

References 16 publications

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“…This finding can be explained by the fact that the existence of rubber fibbers in the sand generates a supplementary resistance. These obtained results are consistent with the previous investigation [5] carried out on reinforced sand with polypropylene fibers. They have indicated that the incorporation of polypropylene fibers in dry sand with the rate of 1% can improve the normalized peak strength by about 25-30%.…”

Section: Ultimate Statesupporting

confidence: 83%

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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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Section: Ultimate Statesupporting

confidence: 83%

“…This parameter is defined as the ratio of the ultimate strength (s ult ) to normal stress (r n ) applied on the sand during shearing [5]. From these results, it is clearly seen that the normalized ultimate strength is ameliorated by an increasing rubber content.…”

Section: Ultimate Statesupporting

confidence: 50%

Feasibility of using rubber waste fibers as reinforcements for sandy soils

Meddah

Merzoug

2017

Innov. Infrastruct. Solut.

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“…The behavior and beneficial effects of fiber-reinforced soil have been extensively studied and described in the literature. Numerous experiments with fiber-reinforced soil have shown that the unconfined compressive strength of the soil increases with the addition of random fibers to the soil [15][16][17][18]. Other studies have investigated the effect of adding artificial or natural fibers [14,[19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Influence of Polypropylene Fiber on the Swelling Pressure Expansion Attributes of Silica Fume Stabilized Clayey Soil

Tiwari

Satyam

2019

Geosciences

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Expansive soil shows dual swell-shrink which is not suitable for construction. Several mitigating techniques exist to counteract the problem promulgated by expansive clayey soils. This paper explored the potential mecho-chemical reinforcement of expansive clayey soil to mitigate the effect of upward swelling pressure and heave. The polypropylene fiber is randomly distributed in the soil for mechanical stabilization, and the industrial residual silica fume is used as a chemical stabilizer. The experimental analysis was made in three phases which involved tests on mechanically-reinforced expansive soil, using randomly distributed polypropylene fibers with different percentages (0.25%, 0.50%, and 1.00%), and which were 12 mm length. The second phase of experiments was carried out on chemical stabilized expansive soil with different percentages (2%, 4%, and 8%) of silica, and the next phase of the experiment focused on the combination of mecho-chemical stabilization of the expansive soil with different combinations of silica (i.e., 2%, 4%, and 8%) and polypropylene fibers (i.e., 0.25%, 0.50%, and 1.00%). Maximum dry density (MDD), optimum moisture content (OMC), liquid limit (LL), plastic limit (PL), plastic index (PI), grain size, and constant volume swelling pressure tests were performed on unreinforced and reinforced expansive soil, to investigate the effects of polypropylene fiber and silica fume on the engineering properties of expansive clayey soil. The experimental results illustrate that the inclusion of polypropylene fiber has a significant effect on the upward swelling pressure and expansion property of expansive soil. The reduction in the upward swelling pressure and expansion is a function of fiber content. These results also indicated that the use of silica fume caused a reduction in upward swelling potential, and its effect was considerably more than the influence of fiber.

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“…Numerous experiments with fiber-reinforced soil have shown that the unconfined compressive strength of the soil increases with the addition of random fibers to the soil. [15][16][17][18]. Other studies have investigated the effect of adding artificial or natural fibers [14,[19][20][21][22] There is a rapid increase in the waste quantity of plastic fiber if this waste can be utilized for the stabilization of soil than a sustainable solution of the expansive soil can be achieved [11].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Influence of Polypropylene Fiber on Swelling Pressure – Expansion Attribute of Silica Fume Stabilized Clayey Soil

Tiwari¹,

Satyam²

2019

Preprint

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Expansive soil shows dual swell-shrink which is not suitable for the construction. Several mitigating techniques exist to counteract the problem promulgate by expansive clayey soils. This paper explored the penitential mecho-chemical reinforcement of expansive clayey soil to mitigate the effect of upward swelling pressure and heave. The polypropylene fiber is randomly distributed in the soil for mechanical stabilization, and the industrial residual silica fume is used as a chemical stabilizer. The experimental analysis is made in three phases which involved the tests on mechanical reinforced expansive soil using randomly distributed polypropylene fibers with different percentages (0.25%, 0.50%, and 1.00%), and 12mm length. The second phase of experiments carried out on chemical stabilized expansive soil with different percentages (2%, 4% and 8%) of silica and next phase of the experimental focused in the combination of mecho-chemical stabilization of the expansive soil with different combination of silica (i.e., 2%, 4% and 8%) and polypropylene fibers (i.e., 0.25%, 0.50% and 1.00%). Maximum dry density (MDD), optimum moisture content (OMC), liquid limit (LL), plastic limit (PL), plastic index (PI) grain size, and constant volume swelling pressure test were performed on unreinforced and reinforced expansive soil to investigate the effect of polypropylene fiber and silica fume on the engineering properties of expansive clayey soil. The experimental results illustrate that the inclusion of polypropylene fiber has a significant effect on the upward swelling pressure and expansion property of expansive soil. The reduction in the upward swelling pressure and expansion is a function of fiber content. These results also indicated that the use of silica fume caused a reduction in upward swelling potential, and its effect was considerably more than the influence of fiber.

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Fiber-reinforced sand strength and dilation characteristics

Cited by 44 publications

References 16 publications

Feasibility of using rubber waste fibers as reinforcements for sandy soils

Feasibility of using rubber waste fibers as reinforcements for sandy soils

Experimental Study on the Influence of Polypropylene Fiber on the Swelling Pressure Expansion Attributes of Silica Fume Stabilized Clayey Soil

Experimental Study on the Influence of Polypropylene Fiber on Swelling Pressure – Expansion Attribute of Silica Fume Stabilized Clayey Soil

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Fiber-reinforced sand strength and dilation characteristics

Cited by 44 publications

References 16 publications

Feasibility of using rubber waste fibers as reinforcements for sandy soils

Feasibility of using rubber waste fibers as reinforcements for sandy soils

Experimental Study on the Influence of Polypropylene Fiber on the Swelling Pressure Expansion Attributes of Silica Fume Stabilized Clayey Soil

Experimental Study on the Influence of Polypropylene Fiber on Swelling Pressure &ndash; Expansion Attribute of Silica Fume Stabilized Clayey Soil

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Experimental Study on the Influence of Polypropylene Fiber on Swelling Pressure – Expansion Attribute of Silica Fume Stabilized Clayey Soil