Application of differently treated illite and illite clay samples for the development of ceramics

Sedmale, Gaida Maruta; Randers, Mārtiņš; Rundāns, Māris; Segliņš, Valdis

doi:10.1016/j.clay.2017.06.016

Cited by 32 publications

(9 citation statements)

References 17 publications

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“…Similar result was obtained by Ounissi et al which reached strength of 25 MPa at the age of 7 days [11]. Calcined illite clay chemical treatment with an 8 M NaOH solution can also lead to the formation of the zeolites and sodium aluminium silicate hydrate [15]. The highest compressive strength was reached by heating the clay to 850 °C or 950 °C, but the dehydroxylation of such silicates are generally complete at lower temperatures (<800 °C, [16]), the precise reason why this higher temperature range produced metaclays with higher reactivity remained unclear [7].…”

Section: Introductionsupporting

confidence: 86%

Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor

Būmanis

Vaičiukynienė

2021

Environmental and Climate Technologies

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The search for alternative alumosilicates source for production of alkali activated materials (AAM) is intensively researched. Wide spread of natural materials such as clays and waste materials are one of potential alternatives. In this research AAM was made from local waste brick made of red clay and calcined low-carbonate illite clay precursor and its properties evaluated. Waste silica gel containing amorphous silica from fertilizer production plant was proposed as additional raw material. 6 M and 7 M NaOH alkali activation solutions were used to obtain AAM. Raw materials were characterized by X-ray diffraction, laser particle size analyser, DTA/TG. Raw illite clay was calcined at a temperature of 700 to 800 °C. Waste brick was ground similar as raw clay and powder was obtained. Replacement of red clay with silica gel from 2–50 wt.% in mixture composition was evaluated. Results indicate that the most effective activator was 6 M NaOH solution and AAM with strength up to 13 MPa was obtained. Ground brick had the highest strength results and compressive strength of AAM reached 25 MPa. Silica gel in small quantities had little effect of AAM strength while significant strength reduction was observed with the increase silica gel content. The efflorescence was observed for samples with silica gel.

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Section: Introductionsupporting

confidence: 86%

Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor

Būmanis

Vaičiukynienė

2021

Environmental and Climate Technologies

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“…Estas ecuaciones pueden ser una aproximación a estudio desarrollado por Sedmale [23] del comportamiento y transformación de la Illita en los procesos de Geopolimerización, conlcluyendo que la transformación de la illita aporta resistencia a la compresión específicamente. Y que de acuerdo a sus resultados la presencia de illita en una escoria de horno eléctrico o de ceniza volante se puede considerar un producto para reaccionar con el hidróxido de sodio para la formación de estructuras del tipo Na6(AlSiO4)6•4H2O y Na2CO3•H2O, que mejorar la resistencia mecánica de toda la estructura.…”

Section: Difracción De Rayos Xunclassified

Evaluación de la formación de andradita y carbonatos de calcio durante la síntesis de un geopolímero a partir de escoria blanca ynegra

Ochoa-Franco¹,

López-Díaz²

2020

revuin

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En este artículo se evalúa la influencia de la andradita en la resistencia mecánica de un geopolímero sintetizado a partir de escoria blanca de horno convertidor y escoria negra de horno eléctrico. Como activadores se utilizó hidróxido de sodio 12 M y silicato de sodio 5 M. El hidróxido de sodio se mantuvo constante en 5% y en 15% en silicato de sodio. Se añadió material cerámico en proporciones del 5%,10%, 15% y 20%. El curado de la pasta se hizo a temperatura ambiente durante 24 horas. El tamaño de partículas de la escoria blanca y del material cerámico fue de 150 μm. Se utilizó XDR y MEB para analizar los posibles mecanismos de formación de la andradita y del carbonato de calcio. Se fallaron las muestras en la maquina universal de ensayos. Se determinó la influencia de los compuestos químicos formados en la resistencia a la compresión. Los resultados indican que las condiciones propuestas son adecuadas para la formación estructuras cristalinas propias de los materiales geopoliméricos

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“…It has potential application in a wide range of fields because of its high aspect ratio, large specific surface area, and unique intercalation/exfoliation characteristics. At present, illite is mainly used for the environmental protection to adsorb heavy metals by ion exchange, as raw material for potash fertilizer, and most importantly in the ceramic industry . Illite has also great space for development as filler for polymeric composite materials in basic theoretical and related application researches.…”

Section: Introductionmentioning

confidence: 99%

“…At present, illite is mainly used for the environmental protection to adsorb heavy metals by ion exchange, as raw material for potash fertilizer, and most importantly in the ceramic industry. [22][23][24][25] Illite has also great space for development as filler for polymeric composite materials in basic theoretical and related application researches. There are some studies about the influence of illite on the physical and mechanical properties of polymers.…”

mentioning

confidence: 99%

The influence of illite on the crystallization and properties of isotactic polypropylene

Song

Sun

et al. 2019

Polymer Crystallization

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The iPP/illite composites with varied content of illite were prepared and the influence of illite on the crystallization kinetics, crystalline morphology, and mechanical property of iPP was investigated. It is found that the illite exhibits obvious nucleation ability toward iPP in its α‐form. A 1 wt% of illite leads to an increment of iPP crystallinity from 33% to 50%. Moreover, the crystallization of iPP has been accelerated remarkably. Tensile test shows that the addition of illite also improves the mechanical properties of iPP. A 1 wt% illite leads to an enhancement of modulus of iPP from 1.4 GPa to 1.9 GPa, whereas the tensile strength increases from 30.5 to 37.1 MPa. The above‐mentioned influence of illite on the iPP depends on its content. This has been correlated to the aggregation of illite in the iPP matrix with increasing amount, which reduces the aspect ratio and specific surface area of illite.

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Application of differently treated illite and illite clay samples for the development of ceramics

Cited by 32 publications

References 17 publications

Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor

Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor

Evaluación de la formación de andradita y carbonatos de calcio durante la síntesis de un geopolímero a partir de escoria blanca ynegra

The influence of illite on the crystallization and properties of isotactic polypropylene

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