Kurgan Clays in the Production of Ceramic Materials

2020 ◽  
Vol 299 ◽  
pp. 3-7 ◽  
Author(s):  
M.A. Sapozhnikova ◽  
Irina A. Pavlova
Keyword(s):  
Particle Size ◽  
Mechanical Strength ◽  
Size Composition ◽  
Ceramic Materials ◽  
Raw Material ◽  
Rheological Characteristics ◽  
Technological Parameters ◽  
Drying Behavior ◽  
Material Sample ◽  
Technological Study

The properties of overburden rocks in the extraction of dolomite in the form of red-burning clay from the Kurgan region are investigated to determine its suitability in the production of various types of ceramic materials and products. A full technological study of the clay raw material sample was carried out: the mineral, chemical, particle size composition, as well as plasticity, drying behavior, attitude to sintering, and mechanical strength after burning. It is examined how rheological characteristics affect the control of the technological process. The suitability of clay under consideration, both in majolica ceramics and ceramic bricks production, has been established. The technological parameters for the ceramic bricks production are developed.

scholarly journals Parametric Study of Matisaa Gray Rock as a Potential Clinker Material

2020 ◽  
pp. 22-29
Author(s):  
Mwendwa Geoffrey ◽  
Motochi Isaac ◽  
Otieno Fredrick
Keyword(s):  
Particle Size ◽  
Size Composition ◽  
Particle Size Analysis ◽  
Raw Material ◽  
Size Analysis ◽  
Particle Sizes ◽  
X Ray ◽  
Saturation Factor ◽  
Clinker Production

This study aimed at evaluating Matisaa gray rock (MGR) for clinker production. MGR is naturally abundant in Matisaa, a rural area in Mwingi West District, Kitui county, Kenya. It is locally used as a gabion filler and other concrete structures with desirable physico-mechanical properties. This research employed a controlled experimental design to determine the clinker qualification of MGR. This was based on particle size analysis and raw meal moduli. The standard sieve tests and a Blaine meter were used in the determination of particle size while the raw meal moduli were determined from the respective cement oxides in MGR, which were determined using wavelength dispersive X-ray fluorescence (WDXRF) spectrometer. It was observed that 69.65% of the particle size composition of MGR was less than 90 . Out of this composition, 71.60% of the particle sizes were less than 45 , contributing to a specific surface area of 292.5 . The hydraulic modulus (2.05 – 2.61) and lime saturation factor (0.87 – 0.98) are quite desirable though the silica and alumina ratios are higher than the standard range due to the low proportions of  and  content. The sulfatisation modulus is also undesirable due to the high content of . Thus, without beneficiation, Matisaa gray rock would lead to the production of low-quality clinker. However, the general parametric comparison of Matisaa gray rock with Konza shows that it has the potential for utilization as a clinker raw material.

scholarly journals Using the calculation method for low-melting clay assessment

2018 ◽  
Vol 196 ◽  
pp. 04014
Author(s):  
Natalia Chumachenko ◽  
Vladimir Turnikov ◽  
Vladimir Kuzmin
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Size Composition ◽  
Program Assessment ◽  
Raw Material ◽  
Technological Parameters ◽  
Engineering Structures ◽  
Firing Range ◽  
Standard Assessment ◽  
Melted Material

Low-melting polymineral clays are widely used in building ceramics production. The properties of ceramic products depend on many factors. The paper describes properties of low-melting clay from Belebey deposit, Bashkiria. Using mathematical statistics methods, researchers make statistical analysis of grain size composition of clay raw material on Belebey brick factory and also analyze amount of sand additives and mixing moisture content. The study of general and technological properties of clay raw materials, and materials obtained from this raw material, was carried out in accordance with existing regulations using chemical, differential-thermal and non-standard methods. According to chemical analysis, non-standard assessment of clay raw materials was carried out by means of computer program "Assessment", developed at the Department of Building Materials Production and Engineering Structures. The method of calculating quantity and composition of melted material, formed in ceramic masses during firing, using known diagrams of aluminosilicate systems state is used. The assessment made it possible to determine maximum firing temperature and firing range and additives improving clinker formation. The studies show that calculation indicators are consistent with experimental data. They can be used for quick assessment of raw materials properties when changing its composition, and in adjustment of technological parameters of production.

Effect of Variation of Dispersant and Fluid in the Rapid Prototyping of Alumina

2014 ◽  
Vol 631 ◽  
pp. 275-279
Author(s):  
Nathália Oderich Muniz ◽  
Fernanda Albrecht Vechietti ◽  
Luis Alberto Santos
Keyword(s):  
Rapid Prototyping ◽  
Mechanical Strength ◽  
Inkjet Printing ◽  
Ceramic Powder ◽  
Ceramic Materials ◽  
Apparent Porosity ◽  
Raw Material ◽  
3D Printer

The use of rapid prototyping technologies in the manufacturing ceramic materials has been developed in recent years due to its many advantages. Studies combining rapid prototyping using biomaterials as raw material increased significantly in recent years. The inkjet printing involves using ceramic powder with binder and a fluid released onto the sample through a printhead. The effect of dispersant in conventional manufacturing of alumina-based materials was widely known. However, there are few studies dealing on this issue for rapid prototyping. This work aims to obtain pieces of alumina via a 3D printer, inkjet model, varying concentrations of dispersant and fluid in order to compare its influence. The specimens were evaluated for their apparent porosity, density and dimensions. It was concluded that 1.0% of dispersant combined with a larger amount of solvent resulted in parts with suitable dimensions and higher mechanical strength.

Characterization of Different Brazilian Soils for the Production of Ceramic Artifacts

2021 ◽  
Vol 1017 ◽  
pp. 123-132
Author(s):  
A.R.G. Azevedo ◽  
S.V. Klyuev ◽  
V.A. Klimenko ◽  
M.T. Marvila ◽  
Roman Fediuk
Keyword(s):  
Ceramic Materials ◽  
Raw Material ◽  
Technological Parameters ◽  
Ceramic Blocks ◽  
Physical And Chemical ◽  
Existing Housing ◽  
The City ◽  
Production Industry ◽  
Different Soils

The ceramic materials production industry produces a wide variety of products, such as sealing blocks, roof tiles and shackles, used in civil construction. However, one of the major problems related to the production of these artefacts is the large consumption of natural raw material, which are the clays that are calcined and acquire appropriate technological properties. Brazil is a country that has great prominence in the production of ceramic blocks, used to reduce the existing housing deficit, however the great variability in the characteristics of the soils in the country makes this process very difficult. Thus, the objective of this work was to evaluate the physical and chemical characteristics of four different soils collected in deposits in the city of Campos dos Goytacazes, evaluating right after its technological parameters such as the flexural mechanical strength, water absorption and linear burning retraction of the calcined prismatic specimens at 750, 850 and 1100 °C. The results showed that the collected soils have adequate characteristics for the production of ceramic blocks at a temperature of 1100 °C.

Storage Problems of Poplar Chips from Short Rotation Plantations with Special Emphasis on Fungal Development

2012 ◽  
Vol 8 (1) ◽  
pp. 123-132 ◽  
Author(s):  
Zsuzsanna Horváth ◽  
Béla Marosvölgyi ◽  
Christine Idler ◽  
Ralf Pecenka ◽  
Hannes Lenz
Keyword(s):  
Particle Size ◽  
Health Risk ◽  
Dry Matter ◽  
Ph Value ◽  
Wood Chips ◽  
Raw Material ◽  
Special Focus ◽  
Fungal Development ◽  
Short Rotation ◽  
Fungal Particles

Abstract - There are several problems in storing wood chips freshly harvested from short rotation plantations, which result in quality losses as well as in dry matter and energy losses. The factors influencing the degradation of raw material are examined in this paper with special focus on fungal development. An excessive growth of fungi is connected to dry matter losses and also to an increased health risk during raw material handling. The following factors were measured during 6 months storage of poplar wood chips depending on particle size: box temperature, moisture content, pH-value, appearance of fungi in the storage and the concentration of fungal particles in the air. The results show a close connection between particle size, temperature and attack of fungi. During the storage mesophilic and termophilic species of the genera Alternaria, Aspergillus, Cladosporium, Mucor and Penicillium appeared. The concentration of fungal particles is the highest for fine chips and decreases in bigger particles. There was a special focus on the investigation of the properties of coarse chips (G 50), which represent a good compromise between handling, storage losses and health risk due to fungal development.

Comparative Study on Mechanical Strength Properties of Concrete by Using Demolished Concrete Waste

2019 ◽  
Vol 1 (6) ◽  
pp. 235-239
Author(s):  
Sabarinathan K ◽  
Ashwathi R
Keyword(s):  
Comparative Study ◽  
Mechanical Strength ◽  
Coarse Aggregate ◽  
Environmental Awareness ◽  
Strength Properties ◽  
Raw Material ◽  
Construction Waste ◽  
The World ◽  
Day By Day

The growing environmental awareness and Construction waste, is increasing day by day which in turn makes the world in seeking for examining the characteristics of Construction waste and obtaining a solution by using its reliable segments such that it can be used as a raw material and Conservation the natural recourses like Coarse aggregate

FUNCTIONAL PURPOSE RABBIT MEAT ROLL

2021 ◽  
pp. 132-139
Author(s):  
Zhuldyz Isakovna Satayeva ◽  
Nurbibi Sovetovna Mashanova ◽  
Ainur Bolatbekovna Nurtayeva ◽  
Erzhan Talgatuly Akimzhanov
Keyword(s):  
Nutritional Value ◽  
Meat Product ◽  
Nutritional Supplements ◽  
Physicochemical Analysis ◽  
Raw Material ◽  
Technological Parameters ◽  
New Type ◽  
Rabbit Meat ◽  
High Level ◽  
Functional Purpose

The article presents the results of the development of a new type of rabbit meat product - meatloaf. The consumption of healthy and nutritious foods rich in macro- and micronutrients, low in lipids and cholesterol, as well as various nutritional supplements, is preferable for the modern consumer. One of the promising types of meat as a dietary raw material is rabbit meat. As a result of the studies, a physicochemical analysis was carried out, the amino acid composition of rabbit meat was determined, and an organoleptic and tasting assessment of rabbit meatloaf was given. The technological scheme, the recipe is developed and the technological parameters of the meatloaf preparation are determined. It is recommended to store meatloaf no more than 10 days at a temperature of 0–2 °C with a humidity of 85-90 %. Meatloaf from rabbit meat has functional properties, contains a large number of vitamins PP – 174.3 mg, potassium minerals – 5052.8 mg, magnesium – 382.4 mg, phosphorus – 2875 mg, sodium – 8598.7 mg.The results of the nutritional and biological value of rabbit meatloaf allow us to make an informed conclusion about the high level of their nutritional value, which clearly illustrates the values of quality indicators.

Serpentinite Magnesium Binders, Based on Technogenic Raw Materials

2021 ◽  
Vol 316 ◽  
pp. 1050-1054
Author(s):  
V.N. Zyryanova ◽  
E.V. Lytkina ◽  
A.P. Ochur-Ool
Keyword(s):  
Mechanical Strength ◽  
Water Resistance ◽  
Raw Materials ◽  
Raw Material ◽  
Material Base ◽  
Hardening Process ◽  
Dispersed System ◽  
Technogenic Raw Materials

Increasing water resistance and mechanical strength of hardening magnesian binders’ products can be achieved by introducing microfillings into a hardening dispersed system. It is shown that serpentine provides an increase strength and water resistance in hydration and hardening process, being as a structure-forming component, it intensifies this process. It allows expanding the raw material base for the production of magnesia binders for construction purposes.

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