Mechanical properties of alluvium clay treated with cement and carbon fiber: relationships among strength, stiffness, and durability

Hanafi, Mohamad; Abki, Ala; Ekinci, Abdullah; Baldovino, Jair de Jesús Arrieta

doi:10.1080/10298436.2022.2094928

Cited by 5 publications

(3 citation statements)

References 49 publications

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“…It is consistent with prior research findings [41]. When α assumes a value of less than 1, it implies that porosity has a more significant influence [42]. Within the present investigation, the optimal fit was at α = 0.15.…”

Section: Influence Of P/b Index On G0supporting

confidence: 91%

“…It is recommended to do this test with three similar samples to achieve a typical strength amount for the selected value of η/X iv 0.15 , represented as ∇, for improved accuracy. The decision to use ∇ amounts near 25 was made in this work because it is recommended in recent studies on different materials [42,43]. q u = q u (η/X iv 0.15 =29) × (10,044, 565,830.22) η/X iv 0.15 (−6.87)…”

Section: Influence Of P/b Index On Normalized Ucs and G0mentioning

confidence: 99%

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Enhancing Clay Soil’s Geotechnical Properties Utilizing Sintered Gypsum and Glass Powder

Nategh,

Ekinci,

Iravanian

et al. 2024

Applied Sciences

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The growing number of end-of-life (EoL) photovoltaic (PV) panels as waste materials is forcing many countries to face the challenge of addressing this issue. The presented research explores the utilization of a by-product of this waste material, namely glass powder, with gypsum in geotechnical engineering to improve clay-soil properties. The approach is to integrate these materials to address the sustainable management of EoL PV panels, an underutilized resource in geotechnical applications. Furthermore, the study extensively examines the physical properties of clay soil, gypsum, and glass powder. Composite samples are created by adjusting the proportions of gypsum (0%, 5%, 10%, and 15%) and glass powder (0%, 4%, 8%, and 12%) relative to the soil’s dry mass. Compaction processes are performed at dry densities of 1500 and 1700 kg/m3, with 7, 28, and 56 days of curing duration. Various tests, including ultrasonic pulse velocity (UPV), unconfined compressive strength (UCS), assessments of wet and dry cycle durability, scanning electron microscope (SEM) analyses, and X-ray diffraction (XRD) analyses, are conducted. The results reveal that gypsum consistently improves the soil’s strength and stiffness features, while initially adding glass powder reduces these properties before showing improvement at a 12% content. Correlations have been proposed to determine the unconfined compressive strength (qu), initial shear modulus (G0), and modulus of elasticity (E) to be acquired utilizing just a single test. Moreover, a correlation has been developed to predict the unconfined compressive strength and elastic modulus of any specimen through non-destructive testing. Additionally, microstructural analyses unveil intricate interactions, showcasing the progress of pozzolanic reactions, identifying silicon-rich compounds from glass powder, and elucidating how additives transform soil structure.

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Section: Influence Of P/b Index On G0supporting

confidence: 91%

Section: Influence Of P/b Index On Normalized Ucs and G0mentioning

confidence: 99%

Enhancing Clay Soil’s Geotechnical Properties Utilizing Sintered Gypsum and Glass Powder

Nategh,

Ekinci,

Iravanian

et al. 2024

Applied Sciences

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“…For each mix and XG content, the samples were compacted in triplicate. The dry unit weights of 17 and 17.5 kN/m 3 were selected as molding densities, considering previous studies [58,67]. Additionally, specimens were cured for 28 days before the tests-unconfined compression tests, scanning electron microscopy, and ultrasonic wave analysis.…”

Section: Methodsmentioning

confidence: 99%

From Bibliometric Analysis to Experimental Validation: Bibliometric and Literature Review of Four Cementing Agents in Soil Stabilization with Experimental Focus on Xanthan Gum

Baldovino,

Palma Calabokis,

Saba

2024

Sustainability

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This article focuses on the search for efficient solutions to enhance the mechanical strength of geomaterials, especially soils, with crucial applications in civil engineering. Four promising materials are explored as soil improvement agents: natural latex (rubber trees), lignosulfonate (paper industry byproduct), xanthan gum (bacterial fermentation), and eggshell lime. While other sustainable options exist, these four were chosen for their distinct characteristics and potential for further study. Natural latex, derived from rubber trees, demonstrates exceptional potential for strengthening the mechanical resistance of soils, offering a path to effective stabilization without compromising environmental sustainability. Lignosulfonate, a paper industry byproduct, emerges as an alternative that can significantly enhance the load-bearing capacity of soils, boosting its applicability in civil engineering projects. Xanthan gum, produced through bacterial fermentation, possesses unique properties that increase soil cohesion and strength, making it a valuable option for geotechnical applications. Finally, despite potential challenges, eggshell lime shows promising potential in enhancing the mechanical resistance of soils. This study highlights the importance of evaluating and comparing these agents in terms of their effectiveness in improving the mechanical strength of soils in civil engineering applications. In the literature review, the impact of stabilizer addition (%) was examined for the four cementing agents studied, along with its influence on key soil properties like optimum moisture content (OMC, %), maximum dry density (MDD, gm/cc), California bearing ratio (CBR, %), uniaxial compressive strength (UCS) at 28 days (MPa), and the change in UCS (ΔUCS, %) among other physicochemical parameters. Appropriate selection of these materials can lead to developing more robust and sustainable geomaterials, promoting significant advancements in geotechnical engineering and civil construction practices. To evaluate their effectiveness, the efficiency of one of them was assessed experimentally. Xanthan gum (XG) was selected to biopolymerize clay soil. Specimens were prepared for strength and stiffness tests, including unconfined compression, scanning electron microscopy (SEM), and ultrasonic wave analysis. The impact of stabilizer concentration was examined (e.g., 1%, 3%, 5% xanthan gum) to assess how dosage affects the soil–stabilizer mixture. The results showed that the rubber increases the unconfined compression and stiffness of the soil, controlled by the XG’s porosity/volumetric quantity ratio. The research demonstrates the potential of XG, but a broader analysis of all four materials with the outlined testing methods paves the way for future advancements in geotechnical engineering.

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Effect of recycled polyester fiber reinforcement on the mechanical behavior and microstructure of red mud-improved volcanic ash

Wu,

Wang,

Liu

et al. 2024

Bull Eng Geol Environ

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Mechanical properties of alluvium clay treated with cement and carbon fiber: relationships among strength, stiffness, and durability

Cited by 5 publications

References 49 publications

Enhancing Clay Soil’s Geotechnical Properties Utilizing Sintered Gypsum and Glass Powder

Enhancing Clay Soil’s Geotechnical Properties Utilizing Sintered Gypsum and Glass Powder

From Bibliometric Analysis to Experimental Validation: Bibliometric and Literature Review of Four Cementing Agents in Soil Stabilization with Experimental Focus on Xanthan Gum

Effect of recycled polyester fiber reinforcement on the mechanical behavior and microstructure of red mud-improved volcanic ash

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