Strength Characteristics of Clayey Sand Stabilized Using Polypropylene Fiber or Portland Cement

Bayoumy, Mona; El Sawwaf, Mostafa; Nasr, Ahmed; Elsawwaf, Ahmed

doi:10.1007/s40515-023-00325-y

Cited by 4 publications

(2 citation statements)

References 36 publications

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“…Cement addition influences silty sand soilcement mixture compatibility. Likewise, if silty sand is replaced with clayey sand, the effect will be different; adding cement to silty sand soil will increase MDD and reduce OMC, while on clayey sand soil [25], it will increase MDD and OMC. This difference is due to differences in soil types, which influence water use requirements.…”

Section: Compaction Testmentioning

confidence: 99%

Determination of Optimum Cement Content for Silty Sand Soil Stabilization as the Base Course

2024

GEOMATE

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The aggregate base course is important in the flexible pavement structure, requiring quality materials. In areas where quality material is difficult to find, local soil stabilization using cement is needed to obtain material to replace the aggregate base course. This study aimed to determine the optimum cement content in stabilizing sand-silty soil that meets the requirements specified in the General Specification of Highways 2018 for Road and Bridge Works and to find the effect of pH-soaking water. The research was conducted in the laboratory by testing the Unconfined Compressive Strength of soil cement using variations in cement content of 3%, 5%, 8%, and 10% of the dry weight of soil, soaking time of 3, 7, 14, and 28 days; and pH of soaking water (tap water with a pH value of 8, water with pH value of 4 (containing H2SO4), water with pH value of 9 (containing NaOH)). Cement content of 8% and 10% meets the minimum UCS value according to road specifications. The optimum cement content (which produces the UCS target specification value of 2353.60 kPa) is 9% on the seventh day. Soaking water with pH 4 and 9 decreased the UCS of soaking water with a pH value of 8. A soil cement base course can substitute an aggregate base course in areas with inadequate aggregate material with an 80% CBR value.

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Section: Compaction Testmentioning

confidence: 99%

Determination of Optimum Cement Content for Silty Sand Soil Stabilization as the Base Course

2024

GEOMATE

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“…On the other hand, fiber also stands out as the most frequently employed material for soil stabilization/strengthening and is also efficient in enhancing liquefaction resistance, strength, and the capacity to restrict swelling potential. Bayoumy et al [13], based on the results of experimental tests, concluded that the UCS of the clayey sand increases with the addition of polypropylene fibers or portland cement. However, at high stresses, fibers exhibit more ductile compressive performance, whereas the cemented samples display an abrupt brittle failure.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of Cement and ARG Fiber on the Mechanical and Microstructural Properties of Dune Sand

Shalabi,

Mazher,

Khan

et al. 2024

Advances in Civil Engineering

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Despite its collapsible nature and weakness, desert sand can be used for construction purposes all over the world if properly stabilized. Therefore, the aim of this study is to evaluate the effectiveness of cement and fiber in stabilizing locally available dune sand. A test plan was used to investigate the effects of varying quantities of alkali resistance glass (ARG) fiber (F: 0%, 0.2%, 0.4%, and 0.6%) and portland cement (C: 0.0%, 1.0%, 3.0%, and 5.0%) on the mechanical and microstructural properties of dune sand. Mechanical properties such as unconfined strength (UCS), strain at failure (εf), California bearing ratio (CBR), and modulus of elasticity (Es) were evaluated, and microstructure properties were investigated using Raman spectrum and laser-scanning microscopy (LSM) tests on stabilized sand samples. The results of the experimental study showed that the percentage of cement in the treated sand has a more significant impact on the investigated properties of the treated sand than the percentage of fibers. In addition, increasing fiber content results in an increase in the ductility of the sand mix. Raman analysis revealed significant interactions between sand mix components. Moreover, LSM results showed that fiber–cement interaction increased with increasing cement percentage, as calcium silicate hydrates (CSH) formed in the mix and filamentous and intrastrand binding occurred. The findings of this study indicate that ARG fiber and cement can be effective in the stabilization of dune sand for construction purposes even with the use of low percentages of ARG fiber (0.2%–0.4%) and cement (3%).

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Energy Absorption Capacity of Soil Reinforced with Processed Plant-Derived Fibers: Experimental Research and Predictive Models

Moslemi,

Tabarsa,

Latifi

et al. 2024

Int. J. of Geosynth. and Ground Eng.

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Strength Characteristics of Clayey Sand Stabilized Using Polypropylene Fiber or Portland Cement

Cited by 4 publications

References 36 publications

Determination of Optimum Cement Content for Silty Sand Soil Stabilization as the Base Course

Determination of Optimum Cement Content for Silty Sand Soil Stabilization as the Base Course

Evaluating the Effect of Cement and ARG Fiber on the Mechanical and Microstructural Properties of Dune Sand

Energy Absorption Capacity of Soil Reinforced with Processed Plant-Derived Fibers: Experimental Research and Predictive Models

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