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Dissertations / Theses on the topic 'Sand-clay mixture'

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Published: 29 June 2021

Last updated: 29 July 2025

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1

Olmez, Mehmet Salih. "Shear Strength Behaviour Of Sand-clay Mixtures." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609558/index.pdf.

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ABSTRACT SHEAR STRENGTH BEHAVIOUR OF SAND - CLAY MIXTURES &Ouml<br>LMEZ, Mehmet Salih M.S., Department of Civil Engineering Supervisor: Prof. Dr. Mehmet Ufuk ERGUN May 2008, 106 pages A clean sand having about 5 % fines has been mixed with 5 to 40 % commercial kaolin to form different sand-clay soil mixtures. The purpose of making this study is to observe the effects of fraction of fine materials in the soil mixture on the behavior of shear strength. Three series of experiments have been performed throughout the study. Undrained triaxial compression tests (series 1) are performed on specim

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2

AHMED, AATIF. "EXPERIMENTAL STUDY ON WETTING SOIL WATER CHARACTERISTIC CURVE OF SAND WITH MIXTURE OF BENTONITE CLAY." Thesis, DELHI TECHNOLOGICAL UNIVERSITY, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18888.

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Soil-water characteristic curve (SWCC) also known as water retention curve is an integral part of unsaturated soil mechanics. SWCC is a constitutive relation in unsaturated soil mechanics where soil suction is related to water content. Wetting SWCCs were determined for different sand-bentonite clay mixtures. With the help of the Van-Genuchten equation, acquired test data were fitted. Wetting SWCC can be related to flow of water through unsaturated zones of soil from the groundwater table to the ground surface. Negative column test was employed to determine SWCC since it is fairly simple

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3

Li, Ling. "Thermally and Chemically Induced Changes in Interface Shear Behavior of Landfill Liners." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32995.

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Composite liners are used in landfills to isolate solid waste from the local environment. The combination of a high-density polyethylene (HDPE) geomembrane and compacted clay liner (CCL) is commonly used worldwide. In the Ontario region, bentonite sand mixtures (BSMs) and the local clay i.e. Leda clay, can be considered as appropriate CCL materials. However, the interface failure between smooth HDPE and CCL is a critical issue for landfill safety. The shear stress behavior and strength parameters at the interface between the HDPE and CCL can be affected by many factors, such as temperature and

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4

Virgl, Vítězslav. "Vlastnosti formovacích směsí ze směsných bentonitů po opakovaném použití." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382285.

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High class mold is required for high quality castings. At present, the demands on molding materials are being extended by adding the strict requirement of environmentalists. A suitable variant that meets both demands are green sand molds. The goal of the thesis is to repeatedly cast experimental castings into molds made of 4 types of green sand mixtures. The technological properties of the molds will be compared, the degree of bentonite degradation will be assessed and the surface quality of castings will be assessed according to the amount of adherent molding mixture.

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5

Yin, Kexin. "Influence of clay fraction on the mechanical behavior of a soil-concrete interface." Thesis, Ecole centrale de Nantes, 2021. http://www.theses.fr/2021ECDN0015.

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L’interface sol-structure est un aspect important des intéractions entre le sol et la structure car elle permet d’assurer en grande partie la stabilité de la structure concernée. Le comportement mécanique de l’interface joue un rôle significatif dans le dimensionnement des structures de génie civil et dans la prédiction de leur comportement dans le temps. L’interface entre le sol et la structure est une fine couche de sol en contact avec la structure, dans laquelle des contraintes et des déformations se développent. A notre connaissance, les travaux précédents de la littérature qui caractérise

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6

KC, Ramesh. "REDUCTION OF EXPANSIVE INDEX OF KAOLINITE AND BENTONITE CLAY BY USING SAND AND FLY ASH MIXTURES." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/theses/1378.

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Expansion or swelling behavior of expansive soil has always created problems in the field of geotechnical engineering. When any construction has been carried out on expansive soil without pre-knowledge of their properties under various environmental conditions, the damage is severe. One of the methods to find out swelling potential of expansive soil is the expansive index (EI). The present study investigates the reduction of EI for the two commercially available expansive soils i.e., kaolinite and bentonite when mixed with Ottawa sand and Class C fly ash. The percentages of Ottawa sand and Cla

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7

Garba, Mohammed Ali. "Electrical Formation Factor of Beach Sands and Clay-sand Mixtures from Experimental and Digital Rock Physics." Thesis, Curtin University, 2017. http://hdl.handle.net/20.500.11937/59632.

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Electrical properties of rocks are important parameters for well-log and reservoir interpretation. However, laboratory measurements are time-consuming and difficult. I develop here a comprehensive and robust methodology to compute the electrical formation factor from digital images obtained by X-ray tomography, for clean and shaly sands. Key points of this study are finite size effects of the cubes used for computation, and comparison of trends (and not individual data) formed by laboratory-measured and computed properties.

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8

Purwana, Yusep Muslih. "Experimental study on unsaturated direct shear and California bearing ratio tests with suction monitoring on sand-kaolin clay mixtures." Thesis, Curtin University, 2013. http://hdl.handle.net/20.500.11937/1892.

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The laboratory study on unsaturated soil may comprise the study of devices or apparatus used and the study of the behaviour of soil itself. In both, suction is the main issue of the study’s concern. One of the common devices for unsaturated soil strength-testing is a suction-controlled direct shear box. With this device, suction is generated by controlling water pressure and air pressure during the test. A relatively rare method in unsaturated soil testing is suction-monitored direct shear. In this test, soil suction is not controlled; rather it is directly monitored by attaching the tensiomet

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9

Cunha, Camila Loss dos Santos. "Estudo das características de compressibilidade unidimensional e plasticidade de misturas de argila e areia." Universidade Federal do Espírito Santo, 2012. http://repositorio.ufes.br/handle/10/6170.

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Made available in DSpace on 2016-12-23T14:05:51Z (GMT). No. of bitstreams: 1 Camila Loss dos Santos Cunha.pdf: 1837978 bytes, checksum: 3b4c8a5f811b16b50cafa9b37b221389 (MD5) Previous issue date: 2012-12-20<br>Most theories in geotechnical engineering have been proposed and are applied to pure clay and clean sand and not deal with problems involving soil mixtures. However, due to variability of soil found in nature, there is essential for more knowledge of geotechnical properties of mixtures of clay and sand. This study collected published research about geotechnical behavior of mixtures of

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10

Wan, Jianhong. "Modélisation numérique multi-échelle du comportement mécanique d'un système pieux-sol." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. https://pepite-depot.univ-lille.fr/ToutIDP/EDENGSYS/2023/2023ULILN033.pdf.

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L'étude des systèmes pieux-sol est d'une importance capitale dans le domaine de l'ingénierie géotechnique, car elle est directement liée à la stabilité et à la fiabilité des structures et des infrastructures. Ce travail étudie le comportement mécanique des systèmes pieux-sol, en mettant l'accent sur les pieux en polymère renforcé de fibres (FRP) et les mélanges caoutchouc-sol (RSM). Trois aspects principaux sont étudiés à l'aide de simulations de dynamique moléculaire (MD). Tout d'abord, les propriétés de frottement à l'interface entre le pieu FRP et l'argile sont étudiées à l'aide d'un modèle

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11

Guan, Yu, and 官禹. "Direct Tension Tests on Compacted Sand-Clay Mixture." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/85750360443199314476.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>103<br>The common laboratory tests for determining the tensile strength of soils can be categorized into direct and indirect methods. For direct methods, there are no standard testing apparatus and procedures to measure the tensile strength of soils. For direct tension tests, major affecting factors on tensile strength include the size of specimen, tensile pulling rate and the shape of apparatus mold. A recent development of a direct tension apparatus and tensile strength testing on compacted soil are presented in this thesis. Firstly, the influence of the tensile p

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12

Tong, Lian-Zhi-Qi, and 童連致齊. "Direct Tension Test on Compacted Sand-Clay Mixture with Different Ratio of Sand to Clay and Factors Affecting Its Measurements." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/66838116428562559738.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>104<br>In geotechnical engineering practice, the tensile strength of soil is generally ignored during design and safety assessment. Compared to the compressive strength of soil and the shear strength of soil, the tensile strength of soil is too small to be considered. Furthermore, uncommon testing apparatuses and techniques for measuring the tensile strength of soil and uncompleted theories have not been adequately developed and studied. Currently, the methods of measuring the tensile strength of soil can be categorized into direct and indirect methods. Compared to

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13

李友恆. "Engineering properties of clay-sand mixtures compacted at dry and wet of optimum water content." Thesis, 1986. http://ndltd.ncl.edu.tw/handle/78779855794753978934.

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14

Hsu, Ya-Han, and 徐雅涵. "Experimental Study and Analysis for Tensile Strength of Compacted Sand-Clay Mixtures through Unconfined Penetration Tests." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/86759177188817219293.

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15

Knoll, Michael David. "A petrophysical basis for ground penetrating radar and very early time electromagnetics : electrical properties of sand-clay mixtures." Thesis, 1996. http://hdl.handle.net/2429/6136.

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A series of laboratory experiments was conducted to investigate relationships between electrical properties and hydrogeologic properties of unlithified geologic materials. Mixtures of sand, clay, air and water were used to systematically vary porosity (0.24 to 0.80), clay content (0.00 to 1.00), permeability (5.4x10⁻¹² to 4.4x10⁻⁶ cm²) and water saturation (0.00 to 1.00). Different lithologies were simulated by varying the relative proportion of sand and clay in the mixtures. Compaction was simulated by packing different amounts of the same material into the sample holder. Water saturation w

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16

Sreedharan, Vandana. "Characterization and Assessment of Organically Modified Clays for Geo Environmental Applications." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3373.

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Clays are used for long for the control of soil and water pollution as they are inexpensive natural materials with a high adsorption capacity for a wide range of pollutants. However their use as components in engineered waste containment systems is often limited when it comes to the control of organic contaminants as the clays are organophobic in nature. Organic modification of the natural clays, by replacing the exchangeable inorganic cations of clay with organic cations, can facilitate to overcome this limitation. On modification the clays become organophilic which can enhance their sorption

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17

Sreedharan, Vandana. "Characterization and Assessment of Organically Modified Clays for Geo Environmental Applications." Thesis, 2013. http://etd.iisc.ernet.in/2005/3373.

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Clays are used for long for the control of soil and water pollution as they are inexpensive natural materials with a high adsorption capacity for a wide range of pollutants. However their use as components in engineered waste containment systems is often limited when it comes to the control of organic contaminants as the clays are organophobic in nature. Organic modification of the natural clays, by replacing the exchangeable inorganic cations of clay with organic cations, can facilitate to overcome this limitation. On modification the clays become organophilic which can enhance their sorption

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