scholarly journals Some Aspects Of Studying Clays For Producing Ceramic Brick Of Required Properties

2021 ◽  
Vol 03 (05) ◽  
pp. 190-195
Author(s):  
Adilxodjaev Anvar Ishanovich ◽  
◽  
Son Dmitry Olegovich ◽  

This article aims to show what research needs to be carried out not only to understand the nature and establish the potential capabilities of clay raw materials, to guide technologists, what stages of testing should be organized in production and at what stages it is advisable to consult a specialist in order to develop a technically competent and optimal composition of ceramic bricks. A program for testing clay raw materials is described, which should be developed in such a way as to obtain the most complete information about this clay, its composition, properties, behavior during technological processing: molding, drying and firing during research. And also an explanation is given about the measures necessary before the start of the tests, it is advisable to have information about the geological surveys of the field, about the previously conducted studies and, if the plant has already been built and operated, about the problems that do not allow the production of products of the required quality.

2021 ◽  
Vol 4 (1) ◽  
pp. 27-34
Author(s):  
S-A.Yu. Murtazaev ◽  
A. Uspanova ◽  
M. Hadzhiev ◽  
V. Hadisov

during the implementation of the program to restore the housing stock of the Chechen Republic, as well as during the planned demolition of dilapidated housing, significant volumes of technogenic raw materials were generated, in particular, large volumes of brick and concrete scrap. Enterprises for the production of building materials and products also produce significant volumes of production defects, which accumulate over the years at landfills. Ceramic broken brick and broken brick dropouts are used to fill the roadbed, and the main part still goes to the dump and landfill, which is also an environmental problem. One of the promising ways to use dropouts and broken brick itself is to use them as secondary aggregates in concrete and mortars. This article discusses the issues of improving the quality of ceramic concrete mixtures, choosing the optimal composition and technology for mixing concrete mixtures using dust fractions of dropouts for crushing ceramic brick bricks


2014 ◽  
Vol 682 ◽  
pp. 480-484 ◽  
Author(s):  
V.F. Torosyan ◽  
E.S. Torosyan

Industrial transition to a totally new level of resources and energy saving necessitates improving the technical level of building materials manufacturing, growing their raw materials base, the assortment, enhancing the quality of manufactured products, cutting their cost price. It requires, first of all, carrying out more detailed research in properties of clay and clay loams, and selecting optimal additives for pottery works. Such disadvantages of clays as burning sensitivity, low compression resistance and flexural strength in a burnt state, low frost resistance cause the impossibility of their application without corrective additives. It is quite difficult to find an additive which can solve all the technological problems mentioned above. This paper provides the development of mixture "clay – electro-melting slag" for ceramic brick, moreover, addition of a steel-smelting slag in the fusion mixture results in the change in mixing water content of ceramic masses, strength and coloration of ceramic samples.


Author(s):  
Л. Сулейманова ◽  
Lyudmila Suleymanova ◽  
А. Кочерженко ◽  
A. Kocherzhenko ◽  
И. Рябчевский ◽  
...  

Currently in Russia, great importance is attached to actual issues of energy saving and energy efficiency in construction. Valid regulations require addressing issues related to improving the energy efficiency of buildings. The development and manufacture of new types of effective thermal insulation materials is one of the ways to solve assigned tasks. The use of industrial waste from mining and processing plants as a filler for polyurethane foam is considered in this paper. Samples from the filtration field of the tailings of Stoilensky GOK from various sites are taken as the studied raw materials; their granulometric, chemical compositions and harmonic diameters of the filler particles are determined. According to the calculation results, the dependence of the foaming coefficient on the average harmonic diameter of the filler is determined. The experiment-planning matrix is developed; according to its results, mathematical models are constructed for the dependence of the foaming coefficient of laboratory samples of polyurethane foam filled with tails. Three tail zones based on the results of sampling are considered. Analyzing the obtained results, a quantitative and qualitative assessment of the influence of each factor individually and their combination on the change in the “composition - properties” system is derived.


2018 ◽  
Vol 931 ◽  
pp. 568-572
Author(s):  
Vladimir D. Kotlyar ◽  
Grigorii A. Kozlov ◽  
Oleg I. Zhivotkov ◽  
Kira A. Lapunova

The article presents the results of work on manufacturing paving clinker based on carbonate-argillaceous opokas belonging to the group of siliceous opal-cristobalite rocks. General characteristics of these rocks are given. Their composition, properties and spread patterns are shown. It has been shown that the introduction of strong minerals up to 1% allows creating products with water absorption of less than 2.5% at burning temperatures of 1050-1100 ° C. The resulting products are yellow and fully meet the requirements of regulatory documents. The main technological factors in the production of paving clinker are as follows: the grain composition of the crushed raw materials, burning temperature of the products and the amount of mineralizer. The production of paving clinker based on carbonate-argillaceous opokas can be organized either by extrusion molding or by compression molding.


2020 ◽  
Vol 24 (11) ◽  
pp. 14-18
Author(s):  
A.K. Kairakbaev ◽  
V.Z. Abdrakhimov ◽  
E.S. Abdrakhimova

The use of nanotechnogenic petrochemical raw materials-spent IM-2201 catalyst containing more than 70 % Al2O3, and as a clay binder-lowmelting clay from the Ilek Deposit in the Aktobe region allows you to get a ceramic brick that corresponds to the M150 brand. It is possible to build load-bearing walls of the lower floors of high-rise buildings (more than 10 floors) from M150 ceramic bricks. Innovative proposals for the use of waste from production and spent catalyst in the production of ceramic high-strength earthquake-resistant bricks with increased strength and frost resistance have been developed. The absolute advantage of using multi-tonnage waste and spent catalyst IM-2201 is to relieve the environmental situation.


2015 ◽  
Vol 820 ◽  
pp. 3-7 ◽  
Author(s):  
Afonso Rangel Garcez de Azevedo ◽  
Jonas Alexandre ◽  
Rafael Picanço Oliveira ◽  
Rodolfo Cretton de Souza ◽  
Euzébio Barnabé Zanelato ◽  
...  

The northern region of the state of Rio de Janeiro, Brazil, has a significant participation in the country ceramic production for civil construction owing to the abundance of raw materials, mainly kaolinitic clays. Each municipality in that region has ceramic industries using raw materials mined from its own deposits. Products such as bricks and tiles may lack the required quality due to the limited know-how on the applied raw material. The present work conducted a technological evaluation of the clayey raw material used in the municipality of São José de Ubá including its potential for ceramic processing at firing temperatures of 700, 850 and 950oC. The results indicated that only the ceramic fired at 950oC conforms to the specifications for water absorption and mechanical strength.


Author(s):  
V. Z. Abdrakhimov ◽  
E. S. Abdrakhimova

The reduction in the reserves of traditional natural raw materials makes us look for new ways to replace it with different types of waste. At the same time, the costs of exploration, construction and operation of quarries are excluded, and significant land plots are exempt from the impact of negative anthropogenic factors. The experience of advanced foreign countries has shown the technical feasibility of this direction and its application as a tool for protecting the natural environment from pollution. On the basis of inter-shale clay and high-alumina nanotehnologija raw materials petrochemical spent catalyst IM-2201 NovoKuibyshev petrochemical plant derived ceramic brick with high physical-mechanical properties without the use of traditional natural materials. Using nanotechnogenic petrochemicals - spent catalyst IM-2201, containing more than 70% A12O3, a ceramic brick was obtained that corresponds to the M200 brand. It is possible to build load-bearing walls of the lower floors of high-rise buildings (15 floors or more) from M200 ceramic bricks. Innovative proposals for the use of industrial waste: interslant clay and spent catalyst in the production of high-strength ceramic earthquake-resistant bricks with high strength and frost resistance have been developed. The absolute advantage of using multi-tonnage waste of the spent IM-2201 catalyst and inter-shale clay for the waste of oil shale is the unloading of the environmental situation.


2016 ◽  
Vol 869 ◽  
pp. 121-126 ◽  
Author(s):  
Afonso Rangel Garcez de Azevedo ◽  
Jonas Alexandre ◽  
Gustavo de Castro Xavier ◽  
Euzébio Barnabé Zanelato ◽  
Sergio Neves Monteiro ◽  
...  

The civil construction industrial sector is one of the most important in Brazil both for job opportunity and amount of utilized materials. However, it is also the sector that produces one of the highest volume of waste materials. In fact, it is estimated that total wastes to be around 30% of the raw materials supplied to the constructions. Several factors have been indicated as responsible for this wastage in civil construction, from lack of qualified labor to inappropriate technical procedures. One of the constructive stages, which has been the subject of doubt, is the previous preparation of a crude brick wall to receive a layer of mortar before painting. This previous preparation is known as tacking, which consists of coating the bricks surface with a light mixture of water, cement and sand to improve the mortar adherence. Since the tacking increases the masonry construction cost in approximately 2%, the present work evaluated its necessity. Tests were conducted without and with tack between the bricks and the mortar. The results showed a tendency to increase the adherence with time after tacking.


2020 ◽  
Vol 166 ◽  
pp. 02002
Author(s):  
Ihor Kholoshyn ◽  
Natalia Panteleeva ◽  
Oleksandr Trunin ◽  
Liudmyla Burman ◽  
Olga Kalinichenko

Infrared spectroscopy (IR) is a highly effective method for the analysis of minerals, rocks and ores, capable of solving a whole range of problems when choosing innovative solutions for the technological processing of various types of mineral raw materials. The article considers the main directions of using the infrared spectroscopy method in assessing the technological properties of minerals and their behavior in technological processes: evaluation of the grade (quality) of mineral raw materials; analysis of the behavior of minerals in the technological process with prediction of their technological properties; analysis of changes in the structure and properties of minerals in technological processes; operational analysis of mineral substances at various stages of technological processing. The article illustrates all aspects of the use of infrared spectroscopy at various stages of studying the material composition of mineral raw materials in its enrichment assessment by specific examples of solving problems arising from the technological redistribution of various types of ore and non-metallic minerals.


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