Modifications induced by the thermal treatment of kaolin …
Modifications induced by the thermal treatment of kaolin and determination of reactivity of metakaolin. Author links open overlay panel B. Fabbri a, S. Gualtieri a, C. Leonardi b. ... The calcination treatment provokes the loss of the lattice water from kaolinite and its transformation into metakaolinite, that is an amorphous aluminum-silicate ...
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Determination of Chemically Bound Water in Metakaolin
The technique is presented for the determination of chemically bound water in metakaolin (with the mass fraction of water being within 0.5 and 5 %) by IR spectrometry at …
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THERMAL CHARACTERIZATION OF KAOLINITIC CLAY
In the first step, the physiosorbed and the interlayer water are removed by heating (< 200°C) due to its loosely bound as well as mobility. In the second step the strongly bounded water …
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Determination of the degree of hydration of Portland …
Cement paste hydration is a complex physical-chemical process. The aim of this paper is to use three approaches to determine the degree of hydration: portlandite quantification, scanning electron microscopy and bound water quantification. In order to investigate the physical-chemical and mechanical properties, as well as the hydrates generated.
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Determination of Bound Water Content of Loess Soils by …
Abstract Loess is a wind-blown deposit generally low in clay content. Despite being strongly hydrophilic, there is a lack of detailed investigation of bound water on loess particle surfaces. An integrated approach incorporating isothermal adsorption and thermogravimetric analyses was applied to determine the content of different types of bound water on the …
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Removal of methylene blue from textile waste water using kaolin …
A broad absorption bands at 3448 cm −1 and 3447 cm −1 indicating the presence of bonded -O-H group or adsorbed water molecules in the kaolin and zeolite-x sample, respectively . The presence of adsorbed water molecules is supported by the absorption band located at 1654 cm −1 commonly assigned to bending vibration of adsorbed water ...
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Identification and quantification of soil water components in kaolin …
Kinetic model can detect tightly-bound, loosely-bound, and capillary water in kaolin. ... Determination of bound water content of loess soils by isothermal adsorption and thermogravimetric analysis. Soil Sci. (2015) W.-Y. Liang et al. Swelling pressure of compacted expansive soil over a wide suction range.
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Determination and characterization of metronidazole–kaolin …
Kaolin is freed from impurities (FeO, CaCO 3, MgCO 3) by elutriation and dried. Clay impurities will depend on the genesis of the mineral and will affect the degree of disorder and the particle size of the clay (Balan et al., 1999). Kaolin is insoluble in water, mineral acids and solutions of alkali hydroxides.
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Determination of the Contact Angles of Kaolin Intercalates …
Determination of the Contact Angles of Kaolin Intercalates of Oleochemicals Derived from Rubber Seed (HeveaBrasiliensis) and Tea Seed (CameliaSinensis) Oils by the Capillary Rise Method
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Determination of Bound Water Content of Loess Soils by …
General techniques for bound water determination mainly include X-ray diffraction (XRD), centrifugal setting (Yen and Lee 2001), thermogravimetric analysis (TGA) (Wang et al. 2011;Kucerik et al ...
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Role of different types of water in bentonite clay on hydrate …
Water in clay is generally classified as bound water and free water, and bound water is generally defined as the water in the electric double layer, while the water outside the electric double layer is defined as the free water, which can be divided into capillary and gravity water [17], [18], [19]. ... Determination of bound water content of ...
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THERMAL CHARACTERIZATION OF KAOLINITIC CLAY
the first step, the physiosorbed and the interlayer water are removed by heating (< 200°C) due to its loosely bound as well as mobility. In the second step the strongly bounded water molecules from the first coordination sphere of the interlayer ions is removed at the high temperature (450–500°C). In the third step, the
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Determination of HCl Concentration for Optimum Kaolin …
Hard water can form deposits (scale) on pipe walls and operating units in industrial machines. One way to soften hard water is by using adsorbents to reduce the number of ions causing hardness ...
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Classification and characterization of bound water in …
Purpose Bound water has a large impact on physical and chemical properties of clay. The objective of this study was to investigate the contents, types, and physical properties of bound water and provide insights for understanding the thermal behavior and hydration process of the marine mucky silty clay under the control of bound water. Materials and methods An …
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Determination of Chemically Bound Water in Metakaolin
A. A. Lamberov, E. Yu. Sitnikova, and A. Sh. Abdulganeeva, "Influence of the composition and structure of kaolin clays on the conditions of the phase transition of kaolinite into …
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Simple and Reliable Quantification of Kaolinite in Clay Using …
Kaolin clay finer than 0.6mm sieve were taken for this experimentation. ..... where A, B, ... The chemically bound water and Ca(OH)2 consumption were determined using the furnace at two fixed ...
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Identification and quantification of soil water components in …
Identification and quantification of soil water components in kaolin by thermogravimetric and kinetic analysis https://doi/10.1016/j.enggeo.2023.107273 · Journal: Engineering Geology, …
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Analysis and modeling of bound water adsorption by mixed …
The bound water in soil directly controls the special physical, chemical, and mechanical properties of clay. This paper carries out isothermal adsorption tests on a series of artificially mixed clays and explores the relationship between bound water content and clay mineral composition (montmorillonite content). On this basis, three common empirical models …
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Water quality. Determination of adsorbable organically bound …
Water quality. Determination of adsorbable organically bound halogens (AOX)
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Determination of NMR T2 cut-off for clay bound water in …
Determination of NMR T 2 cut-off for clay bound water in shales: A case study of Carynginia Formation, Perth Basin, Western Australia. Author links open overlay panel M. Nadia Testamanti, ... Furthermore, a second cut-off of 3 ms is commonly used to identify clay bound water, ...
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Characterisation of pore fluid salinity dependent evaporative
A soil skeleton rich in liquid filled voids yields a porous state prone to fluidisation with little or no resistance to shearing (Pastor et al., 2010).Consistency boundaries that correspond to specific states of shear resistance of soil are progressively encountered reliant on the chemical nature (Lambe and Whitman, 1969) and transitional dynamics of pore water …
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Preparation of a Lignin-Based Cationic Flocculant and Its …
1. Introduction. Significant quantities of clay minerals are present in wastewater discharged from industrial activities, such as mineral processing, papermaking, construction, and oil exploitation [].Kaolin is a major component of such clay minerals [].Fine kaolin particles are subject to hydration, selective adsorption, dissolution, and lattice replacement in sludge water, …
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A bound water model for numerical simulation of SWCC …
where θ is the total water content; θ c is the gravimetric capillary water content; θ b the gravimetric bound water content. As shown in Fig. 2, only bound water needed to be considered beyond cavitation pressure; only capillary water needed to be considered below the end of adsorption; both of them needed to be considered between two values.Capillary suction …
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Chemically bound water as measure of degree of …
manufactured. Water in pre-hydrated cement shall not be included in the determination of degree of hydration. The sample may be more or less carbonated. CO2 from a carbonated cement sample is released at ignition and must be distinguished from chemically bound water in cement. Aggregate in concrete may contain crystal water that is released at ...
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Determination of Free Water and Bound Water by DSC
The water which is not frozen at mmus temperature region or start melting below OOC due to the interactions with materials is called bound water. Bound water is researched in the various fields as it has the influence on the quality of foods and medicines _ By observmg the melting phenomena of water using DSC, free and bound water can be identified
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Effects of process factors on the characteristics of water …
and kaolin are water (24 0ml), kaolin (8.52g), bentonite (8.52g), xanthan gum biopolymer (1g), high viscosity polyanionic cellulose (1.5g) and barite (14.0g). The order of adding the additives to the base fluid (water) followed API standard. Kaolin and bentonite were separately used in the drilling mud formulations. 2. 3. 1. Determination of ...
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Identification and quantification of soil water components in …
Kinetic model can detect tightly-bound, loosely-bound, and capillary water in kaolin. Different soil water components exhibit distinct kinetic triplets. Bound water content increases …
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Classification and physical characteristics of bound water in …
Content measurement, type classification and property determination of bound water in loess can provide insights into understanding the migration law of bound water, the hydration mechanism of loess, and the influence of bound water on the physical and chemical …
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RU2044307C1
FIELD: measurement technology. SUBSTANCE: method of determination of bound water in crude oil and oil products is intended for oil fields, oil preparation plants, oil refineries, points of acceptance and distribution of oil. Method is based on measurement of difference of IR absorption of examined and dewatered samples of one kind on frequency of …
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Use of kaolin clay in aqueous barrier coating applications
use of mineral pigments such as bentonite, talc, and kaolin clay in barrier coatings is known to enhance certain barrier properties of the aqueous dispersion coatings, which has ... test involves gravimetric determination of the water vapor transmission of the sheet material. A total of 5 sheets were evaluated, and the results were averaged for ...
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