Mineralogical, microstructural and porosimetry analysis in three different clayey soils

Ruge, Juan Carlos; Palacios, X.; Molina-Gómez, Fausto; Suárez, Jhan Piero Rojas

doi:10.1088/1742-6596/1388/1/012014

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…For mineral composition analysis of the samples, X'pert high score and Match software are used. Similar studies proved that this technique is the reliable method for mineralogical and crystalline characterization of powders study [25,[31][32][33][34][35][36].…”

Section: Laboratory Testsmentioning

confidence: 76%

Experimental Study on Stabilized Expansive Soil by Blending Parts of the Soil Kilned and Powdered Glass Wastes

Woldesenbet

2022

Advances in Civil Engineering

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This experimental study explores the utilization of glass wastes mixed with kilned soil for weak soil improvement. Expansive soil remains a reason for a lot of road and building damage through settlement and cyclic volume change. Replacing or stabilizing the soil can minimize the risks associated with the soil type. Cement and lime have been the major stabilizers. However, the cost of these materials is raised. Among many stabilizing materials, parts of the expansive soil burned and mixed with glass powder are investigated to fulfill the major requirements. It is proved that the soil sample taken requires improvement. Parts of the soil kilned and mixed with powdered glass waste have 75% of expansive soil kilned and 25% of glass waste powder, which are then added in expansive soil with percentages of 5%, 15%, and 25% to test the change that occurred on liquid limit, plastic limit, free swell, unconfined compression, compaction, California bearing ratio (CBR), and mineral composition. Maximum dry density (MDD) improved from 1.33 g/cm3 to 1.61 g/cm3, optimum moisture content (OMC) reduced from 40% to 21.3%, plastic index reduced from 58.79% to 19.91%, California bearing ratio (CBR) increased from 0.95% to 12.08%, and unconfined compressive strength (UCS) changed from 216 kPa to 910 kPa on 14 days of curing period. Similarly, the addition of 15% and 25% of the stabilizer improved the free swell of expansive soil to 36% and 14%, respectively. CBR swell values significantly improved from 7.16% to 0.22%. Changes in mineral contents from X-ray diffraction (XRD) test are observed: montmorillonite and illite minerals disappeared, and the nonexpansive minerals are observed abundantly in stabilized soil. The addition of 15% to 25% of the stabilizer in expansive soil improved the physical and chemical properties as to be in the appropriate range for road subgrade construction use.

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Section: Laboratory Testsmentioning

confidence: 76%

Experimental Study on Stabilized Expansive Soil by Blending Parts of the Soil Kilned and Powdered Glass Wastes

Woldesenbet

2022

Advances in Civil Engineering

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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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“…Sridharan (2014) studied the clay mineralogy and physicochemical mechanisms that govern the behavior of fine soil [5]. Ruge, et al (2019) performed a mineralogical, microstructural and porosymmetric analysis in clay soils to determine the mineral composition that controls the potential swelling of clay soils [6].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the ratio between the plasticity of clay and the expansion capacity by changes in humidity and temperature

Cáceres

Pineda-Rodríguez

Rojas-Suárez

2021

J. Phys.: Conf. Ser.

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Clay is a cohesive material that varies in volume due to changes in humidity and temperature. Its behavior is studied with physical and geotechnical characterization of the material. The experimental analysis of the expansiveness of clays is related to plasticity, which depends on the expansive minerals it contains. The objective is to analyze the relationship between the plasticity index and the expansion capacity due to changes in humidity and temperature; various types of clay from San José de Cúcuta, Colombia, were studied. Liquid limit and plastic limit were analyzed with which the plasticity index was determined. The test tube free expansion and calcination were carried out at 1000 °C to determine the volumetric change due to humidity and temperature, respectively. The clays with plasticity index of 10% - 20% presented expansion by humidity of 5% - 10% and by calcination of 0% - 10%, which indicates low expansion; while the clay with plasticity index of 20% - 40% presented expansion by moisture of 20% - 50% and by calcination of 25% - 50%, which indicates moderately high expansion. The results show that there is a relationship between plasticity index and the expansion capacity due to changes in humidity and temperature.

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Mineralogical, microstructural and porosimetry analysis in three different clayey soils

Cited by 5 publications

References 8 publications

Experimental Study on Stabilized Expansive Soil by Blending Parts of the Soil Kilned and Powdered Glass Wastes

Experimental Study on Stabilized Expansive Soil by Blending Parts of the Soil Kilned and Powdered Glass Wastes

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

Analysis of the ratio between the plasticity of clay and the expansion capacity by changes in humidity and temperature

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