An improvement of criteria for assessing the quality of clay raw material for architectural and construction ceramics
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 6, Issue 6
Abstract
<p>The study analyzes the existing methods for assessing the suitability of clay raw materials for the production of architectural and construction ceramics and substantiates the need for their improvement in the direction of developing an indicator based on an analysis of the mineral composition of clays. Using the compositions of the kaolinite – montmorillonite – hydromica – quartz system, which simulate the composition of polymineral clays, the effect of clay-forming minerals and quartz impurities on the properties of the clinker ceramic materials has been established. It has been determined that the montmorillonite component of the compositions has a positive effect on the water absorption of materials, and kaolinite produces a favourable effect on the mechanical strength and frost resistance. The increase in the content of quartz in the composition of compositions from 30 % to 50 % leads to an increase in water absorption of materials, reducing their strength and frost resistance to a level unacceptable for ceramic clinker. It has been established that to obtain clinker ceramics, the quartz content in the compositions cannot exceed 40 %.</p>A diagram of the mineral composition was developed, clearly illustrating the ratios of the main rock-forming minerals in clays with a quartz content of 30 % and 40 %, acceptable for the production of modern clinker products. The diagram shows areas of the mineral composition of clays suitable for the production of facing, paving and road clinker of the M200–300 grades and road clinker of the M400 grade at a firing temperature of 1,100 °С. The diagram of the mineral composition complements the existing indicators of the suitability of clay raw materials for the production of architectural and construction ceramics and can serve as an additional criterion for assessing their technological quality. The diagram can be used to analyze the suitability of clays for the production of ceramic clinker, provided that only the mineral composition of clays is determined without establishing their chemical and particle size distribution
Authors and Affiliations
Liudmyla Shchukina, Yaroslav Galushka, Kateryna Bohdanova
Keywords
Related Articles
- EP ID EP528284
- DOI 10.15587/1729-4061.2018.150675
- Views 43
- Downloads 0
Development of the algorithm for aircraft control at inaccurate measurement of the state vector and variable accuracy parameter
<p class="a0">A parametric method of the synthesis of control in the closed circuit, taking into account explicitly generalized error of the inertial module, is presented. The law of control in the form of analytical for...
Welding method for high crack sensitivity of Q&T steel
<p>Components for combat vehicles need (such as body panzers, main battle tank, armored personnel carrier) to be made of high strength and hardness steel. However, during and after the welding process is complete, this s...
Design and examination of the new biosoluble casting alloy of the system Mg–Zr–Nd for osteosynthesis
<p>We have performed a comparative analysis of existing materials for the fabrication of implants and report their physical-mechanical properties; their advantages and disadvantages have been defined. It is shown that ma...
Analysis of the road traffic management system in the neural network development perspective
<p>The research goal of the paper is to present the issues connected with road traffic management systems and to illustrate a management system that uses Intelligent Transportation Systems and neural networks. The use of...
Designing a combined device for determining the place of arc discharge
<p>We determined factors that arise during an arc discharge and detected possibility of their use to accelerate protection against arc closure. This enables creation of a combined device for accurate determination of an...