Study on the Mechanism of Stabilizing Loess with Lime: Analysis of Mineral and Microstructure Evolution

Ma, Yawei; Chen, Wenwu

doi:10.1155/2021/6641496

Cited by 11 publications

(5 citation statements)

References 34 publications

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“…Te glass powder is highly dominated by silicon dioxide (SiO 2 ), as shown in Table 4. When the soil particles are mixed with the glass powder particles, they reacted and mineral change occurred as studied by previous researchers [15,[36][37][38][39]. However, the plastic chips are mixed as a mechanical stabilizer; hence, its efect is only geomechanical.…”

Section: Particle Characterization Of Soil and The Stabilizersmentioning

confidence: 99%

Strength Improvement of Black Cotton Soil Using Plastic Bottles and Crushed Glass Wastes

Woldesenbet

2023

Journal of Engineering

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The aim of this study was to improve the strength of black cotton soil for its suitability for road subgrade construction using wastes from plastic bottles and glass waste powders. Currently, nondecomposable wastes from plastic and glasses have become threats to the human health and the environment. This study used the wastes to replace cement, since the cost of cement raised due to energy and raw material to use as stabilizer in weak soil. The glass powder (WGP) and the plastic chips were mixed with the soil sample with a percentage by dry weight of 6%, 12%, 18%, and 24% of WGP and 2%, 4%, 6%, and 8% of plastic chips, respectively. The glass waste can be prepared similar to the soil as the requirement of test standards and plastic wastes was used as reinforcement for the soil-glass-mix; hence, its purpose was geomechanical. Laboratory tests for soil-mix physical properties and strength parameters were conducted. Soil laboratory test results proved that the natural soils were classified to A-7-5 as per the AASHTO Soil Classification System and CH as per the Unified Soil Classification System (USCS). The Unconfined Compressive Strength (UCS) improved from 91.92 kPa to 688.83 kPa, and the California Bearing Ratio (CBR) improved from 2.64 to 17.5. The improvement of subgrade soil properties was increased with increased ratios of powder glass and plastic strips. The result indicated that the two stabilizers were very effective in improving strength parameters and index parameters.

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Section: Particle Characterization Of Soil and The Stabilizersmentioning

confidence: 99%

Strength Improvement of Black Cotton Soil Using Plastic Bottles and Crushed Glass Wastes

Woldesenbet

2023

Journal of Engineering

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“…As a result of the modification of the electrical charge density, the forces of intermolecular attraction increase, which directly results in a strengthening of the soil structure [ 3 ] and a favorable change in the Atterberg limits [ 168 ]. The long-term effectiveness of lime stabilization of loess has also been proven [ 169 ], which is extremely important for the design of permanent structures on this type of subsoil. Furthermore, hydrated lime is an activator for GGBS-type binders [ 170 ].…”

Section: Characteristic Of Binders Amendments and Additivesmentioning

confidence: 99%

Does Current Knowledge Give a Variety of Possibilities for the Stabilization/Solidification of Soil Contaminated with Heavy Metals?—A Review

Lal

Fronczyk

2022

Materials

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Stabilization/solidification of contaminated soil is a process that allows simultaneous strengthening of the soil structure, disposal of contamination and recycling of industrial waste, implemented as substitutes for Portland cement or additives to improve the properties of the final product obtained. Extremely intensive development of studies pertaining to the S/S process prompted the authors to systematize the binders used and the corresponding methods of binding the contamination, and to perform an analysis of the effectiveness expressed in geomechanical properties and leachability. The study pays close attention to the types of additives and binders of waste origin, as well as the ecological and economic benefits of their use. The methods of preparing and caring for the specimens were reviewed, in addition to the methods of testing the effectiveness of the S/S process, including the influence of aging factors on long-term properties. The results of the analyses carried out are presented in the form of diagrams and charts, facilitating individual evaluation of the various solutions for the stabilization/solidification of soils contaminated with heavy metals.

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“…Common solidifying agents for solidified soil include cement, quicklime, and fly ash. Numerous scholars have conducted experiments employing various methods, with a primary emphasis on saline soil [3][4][5][6][7][8], loess [9][10][11][12][13][14], and other typical soil types [15][16][17]. The existing studies show a comparatively limited focus on the solidification of dredged sediment from rivers and lakes.…”

Section: Introductionmentioning

confidence: 99%

Fiber Solidification Treatment of River and Lake Wastewater and Sediments: Deformation Characteristics and Microscopic Mechanism Research

Yang,

Xu,

et al. 2024

Processes

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River and lake dredging projects inevitably produce significant quantities of wastewater and sediment. This accumulation results in dredged soil with high moisture content, characterized by low strength, rendering it unsustainable for use. To facilitate environmentally friendly utilization of wastewater and sediment, solidifying agents and basalt fibers are introduced to solidify the wastewater within the dredged sediment. This process transforms the wastewater, sediment, solidifying agents, and basalt fibers into a novel, strengthened material. This transformation allows for their application as stabilized soil for engineering endeavors. Indoor experiments and scanning electron microscope analyses were performed to examine the deformation characteristics of fiber-stabilized soil and analyze its micro-mechanisms. Research findings suggest that as the curing age increases, the curing agent’s reaction becomes more comprehensive. Fibers have the potential to ameliorate soil damage. The proposed binary-medium model’s applicability and accuracy were validated through the analysis of triaxial test results employing the reinforcement principle. These findings establish a theoretical foundation for the resourceful utilization of wastewater and sediment.

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Study on the Mechanism of Stabilizing Loess with Lime: Analysis of Mineral and Microstructure Evolution

Cited by 11 publications

References 34 publications

Strength Improvement of Black Cotton Soil Using Plastic Bottles and Crushed Glass Wastes

Strength Improvement of Black Cotton Soil Using Plastic Bottles and Crushed Glass Wastes

Does Current Knowledge Give a Variety of Possibilities for the Stabilization/Solidification of Soil Contaminated with Heavy Metals?—A Review

Fiber Solidification Treatment of River and Lake Wastewater and Sediments: Deformation Characteristics and Microscopic Mechanism Research

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